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Added in API level 24

BigDecimal

public class BigDecimal
extends Number implements Serializable, Comparable<BigDecimal>

java.lang.Object
   ↳ java.lang.Number
     ↳ android.icu.math.BigDecimal


The BigDecimal class implements immutable arbitrary-precision decimal numbers. The methods of the BigDecimal class provide operations for fixed and floating point arithmetic, comparison, format conversions, and hashing.

As the numbers are decimal, there is an exact correspondence between an instance of a BigDecimal object and its String representation; the BigDecimal class provides direct conversions to and from String and character array (char[]) objects, as well as conversions to and from the Java primitive types (which may not be exact) and BigInteger.

In the descriptions of constructors and methods in this documentation, the value of a BigDecimal number object is shown as the result of invoking the toString() method on the object. The internal representation of a decimal number is neither defined nor exposed, and is not permitted to affect the result of any operation.

The floating point arithmetic provided by this class is defined by the ANSI X3.274-1996 standard, and is also documented at http://www2.hursley.ibm.com/decimal
[This URL will change.]

Operator methods

Operations on BigDecimal numbers are controlled by a MathContext object, which provides the context (precision and other information) for the operation. Methods that can take a MathContext parameter implement the standard arithmetic operators for BigDecimal objects and are known as operator methods. The default settings provided by the constant DEFAULT (digits=9, form=SCIENTIFIC, lostDigits=false, roundingMode=ROUND_HALF_UP) perform general-purpose floating point arithmetic to nine digits of precision. The MathContext parameter must not be null.

Each operator method also has a version provided which does not take a MathContext parameter. For this version of each method, the context settings used are digits=0, form=PLAIN, lostDigits=false, roundingMode=ROUND_HALF_UP; these settings perform fixed point arithmetic with unlimited precision, as defined for the original BigDecimal class in Java 1.1 and Java 1.2.

For monadic operators, only the optional MathContext parameter is present; the operation acts upon the current object.

For dyadic operators, a BigDecimal parameter is always present; it must not be null. The operation acts with the current object being the left-hand operand and the BigDecimal parameter being the right-hand operand.

For example, adding two BigDecimal objects referred to by the names award and extra could be written as any of:

award.add(extra)
award.add(extra, MathContext.DEFAULT)
award.add(extra, acontext)

(where acontext is a MathContext object), which would return a BigDecimal object whose value is the result of adding award and extra under the appropriate context settings.

When a BigDecimal operator method is used, a set of rules define what the result will be (and, by implication, how the result would be represented as a character string). These rules are defined in the BigDecimal arithmetic documentation (see the URL above), but in summary:

The names of methods in this class follow the conventions established by java.lang.Number, java.math.BigInteger, and java.math.BigDecimal in Java 1.1 and Java 1.2.

See also:

Summary

Constants

int ROUND_CEILING

Rounding mode to round to a more positive number.

int ROUND_DOWN

Rounding mode to round towards zero.

int ROUND_FLOOR

Rounding mode to round to a more negative number.

int ROUND_HALF_DOWN

Rounding mode to round to nearest neighbor, where an equidistant value is rounded down.

int ROUND_HALF_EVEN

Rounding mode to round to nearest neighbor, where an equidistant value is rounded to the nearest even neighbor.

int ROUND_HALF_UP

Rounding mode to round to nearest neighbor, where an equidistant value is rounded up.

int ROUND_UNNECESSARY

Rounding mode to assert that no rounding is necessary.

int ROUND_UP

Rounding mode to round away from zero.

Fields

public static final BigDecimal ONE

The BigDecimal constant "1".

public static final BigDecimal TEN

The BigDecimal constant "10".

public static final BigDecimal ZERO

The BigDecimal constant "0".

Public constructors

BigDecimal(BigDecimal bd)

Constructs a BigDecimal object from a java.math.BigDecimal.

BigDecimal(BigInteger bi)

Constructs a BigDecimal object from a BigInteger, with scale 0.

BigDecimal(BigInteger bi, int scale)

Constructs a BigDecimal object from a BigInteger and a scale.

BigDecimal(char[] inchars)

Constructs a BigDecimal object from an array of characters.

BigDecimal(char[] inchars, int offset, int length)

Constructs a BigDecimal object from an array of characters.

BigDecimal(double num)

Constructs a BigDecimal object directly from a double.

BigDecimal(int num)

Constructs a BigDecimal object directly from a int.

BigDecimal(long num)

Constructs a BigDecimal object directly from a long.

BigDecimal(String string)

Constructs a BigDecimal object from a String.

Public methods

BigDecimal abs(MathContext set)

Returns a BigDecimal whose value is the absolute value of this BigDecimal.

BigDecimal abs()

Returns a plain BigDecimal whose value is the absolute value of this BigDecimal.

BigDecimal add(BigDecimal rhs)

Returns a plain BigDecimal whose value is this+rhs, using fixed point arithmetic.

BigDecimal add(BigDecimal rhs, MathContext set)

Returns a BigDecimal whose value is this+rhs.

byte byteValueExact()

Converts this BigDecimal to a byte.

int compareTo(BigDecimal rhs)

Compares this BigDecimal to another, using unlimited precision.

int compareTo(BigDecimal rhs, MathContext set)

Compares this BigDecimal to another.

BigDecimal divide(BigDecimal rhs, int round)

Returns a plain BigDecimal whose value is this/rhs, using fixed point arithmetic and a rounding mode.

BigDecimal divide(BigDecimal rhs, MathContext set)

Returns a BigDecimal whose value is this/rhs.

BigDecimal divide(BigDecimal rhs)

Returns a plain BigDecimal whose value is this/rhs, using fixed point arithmetic.

BigDecimal divide(BigDecimal rhs, int scale, int round)

Returns a plain BigDecimal whose value is this/rhs, using fixed point arithmetic and a given scale and rounding mode.

BigDecimal divideInteger(BigDecimal rhs)

Returns a plain BigDecimal whose value is the integer part of this/rhs.

BigDecimal divideInteger(BigDecimal rhs, MathContext set)

Returns a BigDecimal whose value is the integer part of this/rhs.

double doubleValue()

Converts this BigDecimal to a double.

boolean equals(Object obj)

Compares this BigDecimal with rhs for equality.

float floatValue()

Converts this BigDecimal to a float.

String format(int before, int after)

Returns the String representation of this BigDecimal, modified by layout parameters.

String format(int before, int after, int explaces, int exdigits, int exformint, int exround)

Returns the String representation of this BigDecimal, modified by layout parameters and allowing exponential notation.

int hashCode()

Returns the hashcode for this BigDecimal.

int intValue()

Converts this BigDecimal to an int.

int intValueExact()

Converts this BigDecimal to an int.

long longValue()

Converts this BigDecimal to a long.

long longValueExact()

Converts this BigDecimal to a long.

BigDecimal max(BigDecimal rhs)

Returns a plain BigDecimal whose value is the maximum of this and rhs.

BigDecimal max(BigDecimal rhs, MathContext set)

Returns a BigDecimal whose value is the maximum of this and rhs.

BigDecimal min(BigDecimal rhs)

Returns a plain BigDecimal whose value is the minimum of this and rhs.

BigDecimal min(BigDecimal rhs, MathContext set)

Returns a BigDecimal whose value is the minimum of this and rhs.

BigDecimal movePointLeft(int n)

Returns a plain BigDecimal whose decimal point has been moved to the left by a specified number of positions.

BigDecimal movePointRight(int n)

Returns a plain BigDecimal whose decimal point has been moved to the right by a specified number of positions.

BigDecimal multiply(BigDecimal rhs)

Returns a plain BigDecimal whose value is this*rhs, using fixed point arithmetic.

BigDecimal multiply(BigDecimal rhs, MathContext set)

Returns a BigDecimal whose value is this*rhs.

BigDecimal negate()

Returns a plain BigDecimal whose value is -this.

BigDecimal negate(MathContext set)

Returns a BigDecimal whose value is -this.

BigDecimal plus(MathContext set)

Returns a BigDecimal whose value is +this.

BigDecimal plus()

Returns a plain BigDecimal whose value is +this.

BigDecimal pow(BigDecimal rhs, MathContext set)

Returns a BigDecimal whose value is this**rhs.

BigDecimal pow(BigDecimal rhs)

Returns a plain BigDecimal whose value is this**rhs, using fixed point arithmetic.

BigDecimal remainder(BigDecimal rhs)

Returns a plain BigDecimal whose value is the remainder of this/rhs, using fixed point arithmetic.

BigDecimal remainder(BigDecimal rhs, MathContext set)

Returns a BigDecimal whose value is the remainder of this/rhs.

int scale()

Returns the scale of this BigDecimal.

BigDecimal setScale(int scale, int round)

Returns a plain BigDecimal with a given scale.

BigDecimal setScale(int scale)

Returns a plain BigDecimal with a given scale.

short shortValueExact()

Converts this BigDecimal to a short.

int signum()

Returns the sign of this BigDecimal, as an int.

BigDecimal subtract(BigDecimal rhs, MathContext set)

Returns a BigDecimal whose value is this-rhs.

BigDecimal subtract(BigDecimal rhs)

Returns a plain BigDecimal whose value is this-rhs, using fixed point arithmetic.

BigDecimal toBigDecimal()

Converts this BigDecimal to a java.math.BigDecimal.

BigInteger toBigInteger()

Converts this BigDecimal to a java.math.BigInteger.

BigInteger toBigIntegerExact()

Converts this BigDecimal to a java.math.BigInteger.

char[] toCharArray()

Returns the BigDecimal as a character array.

String toString()

Returns the BigDecimal as a String.

BigInteger unscaledValue()

Returns the number as a BigInteger after removing the scale.

static BigDecimal valueOf(double dub)

Translates a double to a BigDecimal.

static BigDecimal valueOf(long lint)

Translates a long to a BigDecimal.

static BigDecimal valueOf(long lint, int scale)

Translates a long to a BigDecimal with a given scale.

Inherited methods

From class java.lang.Number
From class java.lang.Object
From interface java.lang.Comparable

Constants

ROUND_CEILING

Added in API level 24
int ROUND_CEILING

Rounding mode to round to a more positive number.

See also:

Constant Value: 2 (0x00000002)

ROUND_DOWN

Added in API level 24
int ROUND_DOWN

Rounding mode to round towards zero.

See also:

Constant Value: 1 (0x00000001)

ROUND_FLOOR

Added in API level 24
int ROUND_FLOOR

Rounding mode to round to a more negative number.

See also:

Constant Value: 3 (0x00000003)

ROUND_HALF_DOWN

Added in API level 24
int ROUND_HALF_DOWN

Rounding mode to round to nearest neighbor, where an equidistant value is rounded down.

See also:

Constant Value: 5 (0x00000005)

ROUND_HALF_EVEN

Added in API level 24
int ROUND_HALF_EVEN

Rounding mode to round to nearest neighbor, where an equidistant value is rounded to the nearest even neighbor.

See also:

Constant Value: 6 (0x00000006)

ROUND_HALF_UP

Added in API level 24
int ROUND_HALF_UP

Rounding mode to round to nearest neighbor, where an equidistant value is rounded up.

See also:

Constant Value: 4 (0x00000004)

ROUND_UNNECESSARY

Added in API level 24
int ROUND_UNNECESSARY

Rounding mode to assert that no rounding is necessary.

See also:

Constant Value: 7 (0x00000007)

ROUND_UP

Added in API level 24
int ROUND_UP

Rounding mode to round away from zero.

See also:

Constant Value: 0 (0x00000000)

Fields

ONE

Added in API level 24
BigDecimal ONE

The BigDecimal constant "1".

See also:

TEN

Added in API level 24
BigDecimal TEN

The BigDecimal constant "10".

See also:

ZERO

Added in API level 24
BigDecimal ZERO

The BigDecimal constant "0".

See also:

Public constructors

BigDecimal

Added in API level 24
BigDecimal (BigDecimal bd)

Constructs a BigDecimal object from a java.math.BigDecimal.

Constructs a BigDecimal as though the parameter had been represented as a String (using its toString method) and the BigDecimal(java.lang.String) constructor had then been used. The parameter must not be null.

(Note: this constructor is provided only in the android.icu.math version of the BigDecimal class. It would not be present in a java.math version.)

Parameters
bd BigDecimal: The BigDecimal to be translated.

BigDecimal

Added in API level 24
BigDecimal (BigInteger bi)

Constructs a BigDecimal object from a BigInteger, with scale 0.

Constructs a BigDecimal which is the exact decimal representation of the BigInteger, with a scale of zero. The value of the BigDecimal is identical to the value of the BigInteger . The parameter must not be null.

The BigDecimal will contain only decimal digits, prefixed with a leading minus sign (hyphen) if the BigInteger is negative. A leading zero will be present only if the BigInteger is zero.

Parameters
bi BigInteger: The BigInteger to be converted.

BigDecimal

Added in API level 24
BigDecimal (BigInteger bi, 
                int scale)

Constructs a BigDecimal object from a BigInteger and a scale.

Constructs a BigDecimal which is the exact decimal representation of the BigInteger, scaled by the second parameter, which may not be negative. The value of the BigDecimal is the BigInteger divided by ten to the power of the scale. The BigInteger parameter must not be null.

The BigDecimal will contain only decimal digits, (with an embedded decimal point followed by scale decimal digits if the scale is positive), prefixed with a leading minus sign (hyphen) if the BigInteger is negative. A leading zero will be present only if the BigInteger is zero.

Parameters
bi BigInteger: The BigInteger to be converted.
scale int: The int specifying the scale.
Throws
NumberFormatException If the scale is negative.

BigDecimal

Added in API level 24
BigDecimal (char[] inchars)

Constructs a BigDecimal object from an array of characters.

Constructs a BigDecimal as though a String had been constructed from the character array and the BigDecimal(java.lang.String) constructor had then been used. The parameter must not be null.

Using this constructor is faster than using the BigDecimal(String) constructor if the string is already available in character array form.

Parameters
inchars char: The char[] array containing the number to be converted.
Throws
NumberFormatException If the parameter is not a valid number.

BigDecimal

Added in API level 24
BigDecimal (char[] inchars, 
                int offset, 
                int length)

Constructs a BigDecimal object from an array of characters.

Constructs a BigDecimal as though a String had been constructed from the character array (or a subarray of that array) and the BigDecimal(java.lang.String) constructor had then been used. The first parameter must not be null, and the subarray must be wholly contained within it.

Using this constructor is faster than using the BigDecimal(String) constructor if the string is already available within a character array.

Parameters
inchars char: The char[] array containing the number to be converted.
offset int: The int offset into the array of the start of the number to be converted.
length int: The int length of the number.
Throws
NumberFormatException If the parameter is not a valid number for any reason.

BigDecimal

Added in API level 24
BigDecimal (double num)

Constructs a BigDecimal object directly from a double.

Constructs a BigDecimal which is the exact decimal representation of the 64-bit signed binary floating point parameter.

Note that this constructor it an exact conversion; it does not give the same result as converting num to a String using the Double.toString() method and then using the BigDecimal(java.lang.String) constructor. To get that result, use the static valueOf(double) method to construct a BigDecimal from a double.

Parameters
num double: The double to be converted.
Throws
NumberFormatException If the parameter is infinite or not a number.

BigDecimal

Added in API level 24
BigDecimal (int num)

Constructs a BigDecimal object directly from a int.

Constructs a BigDecimal which is the exact decimal representation of the 32-bit signed binary integer parameter. The BigDecimal will contain only decimal digits, prefixed with a leading minus sign (hyphen) if the parameter is negative. A leading zero will be present only if the parameter is zero.

Parameters
num int: The int to be converted.

BigDecimal

Added in API level 24
BigDecimal (long num)

Constructs a BigDecimal object directly from a long.

Constructs a BigDecimal which is the exact decimal representation of the 64-bit signed binary integer parameter. The BigDecimal will contain only decimal digits, prefixed with a leading minus sign (hyphen) if the parameter is negative. A leading zero will be present only if the parameter is zero.

Parameters
num long: The long to be converted.

BigDecimal

Added in API level 24
BigDecimal (String string)

Constructs a BigDecimal object from a String.

Constructs a BigDecimal from the parameter, which must not be null and must represent a valid number, as described formally in the documentation referred to above.

In summary, numbers in String form must have at least one digit, may have a leading sign, may have a decimal point, and exponential notation may be used. They follow conventional syntax, and may not contain blanks.

Some valid strings from which a BigDecimal might be constructed are:

 
 "0" -- Zero "12" -- A whole number "-76" -- A signed whole number "12.70" -- Some decimal places "+0.003" -- Plus
 sign is allowed "17." -- The same as 17 ".5" -- The same as 0.5 "4E+9" -- Exponential notation "0.73e-7" --
 Exponential notation
 
 

(Exponential notation means that the number includes an optional sign and a power of ten following an 'E' that indicates how the decimal point will be shifted. Thus the "4E+9" above is just a short way of writing 4000000000, and the "0.73e-7" is short for 0.000000073.)

The BigDecimal constructed from the String is in a standard form, with no blanks, as though the add(BigDecimal) method had been used to add zero to the number with unlimited precision. If the string uses exponential notation (that is, includes an e or an E), then the BigDecimal number will be expressed in scientific notation (where the power of ten is adjusted so there is a single non-zero digit to the left of the decimal point); in this case if the number is zero then it will be expressed as the single digit 0, and if non-zero it will have an exponent unless that exponent would be 0. The exponent must fit in nine digits both before and after it is expressed in scientific notation.

Any digits in the parameter must be decimal; that is, Character.digit(c, 10) (where c is the character in question) would not return -1.

Parameters
string String: The String to be converted.
Throws
NumberFormatException If the parameter is not a valid number.

Public methods

abs

Added in API level 24
BigDecimal abs (MathContext set)

Returns a BigDecimal whose value is the absolute value of this BigDecimal.

If the current object is zero or positive, then the same result as invoking the plus(MathContext) method with the same parameter is returned. Otherwise, the same result as invoking the negate(MathContext) method with the same parameter is returned.

Parameters
set MathContext: The MathContext arithmetic settings.
Returns
BigDecimal A BigDecimal whose value is the absolute value of this BigDecimal.

abs

Added in API level 24
BigDecimal abs ()

Returns a plain BigDecimal whose value is the absolute value of this BigDecimal.

The same as abs(MathContext), where the context is new MathContext(0, MathContext.PLAIN).

The length of the decimal part (the scale) of the result will be this.scale()

Returns
BigDecimal A BigDecimal whose value is the absolute value of this BigDecimal.

add

Added in API level 24
BigDecimal add (BigDecimal rhs)

Returns a plain BigDecimal whose value is this+rhs, using fixed point arithmetic.

The same as add(BigDecimal, MathContext), where the BigDecimal is rhs, and the context is new MathContext(0, MathContext.PLAIN).

The length of the decimal part (the scale) of the result will be the maximum of the scales of the two operands.

Parameters
rhs BigDecimal: The BigDecimal for the right hand side of the addition.
Returns
BigDecimal A BigDecimal whose value is this+rhs, using fixed point arithmetic.

add

Added in API level 24
BigDecimal add (BigDecimal rhs, 
                MathContext set)

Returns a BigDecimal whose value is this+rhs.

Implements the addition (+) operator (as defined in the decimal documentation, see class header), and returns the result as a BigDecimal object.

Parameters
rhs BigDecimal: The BigDecimal for the right hand side of the addition.
set MathContext: The MathContext arithmetic settings.
Returns
BigDecimal A BigDecimal whose value is this+rhs.

byteValueExact

Added in API level 24
byte byteValueExact ()

Converts this BigDecimal to a byte. If the BigDecimal has a non-zero decimal part or is out of the possible range for a byte (8-bit signed integer) result then an ArithmeticException is thrown.

Returns
byte A byte equal in value to this.
Throws
ArithmeticException if this has a non-zero decimal part, or will not fit in a byte.

compareTo

Added in API level 24
int compareTo (BigDecimal rhs)

Compares this BigDecimal to another, using unlimited precision.

The same as compareTo(BigDecimal, MathContext), where the BigDecimal is rhs, and the context is new MathContext(0, MathContext.PLAIN).

Parameters
rhs BigDecimal: The BigDecimal for the right hand side of the comparison.
Returns
int An int whose value is -1, 0, or 1 as this is numerically less than, equal to, or greater than rhs.

compareTo

Added in API level 24
int compareTo (BigDecimal rhs, 
                MathContext set)

Compares this BigDecimal to another.

Implements numeric comparison, (as defined in the decimal documentation, see class header), and returns a result of type int.

The result will be:

-1 if the current object is less than the first parameter
0 if the current object is equal to the first parameter
1 if the current object is greater than the first parameter.

A compareTo(BigDecimal) method is also provided.

Parameters
rhs BigDecimal: The BigDecimal for the right hand side of the comparison.
set MathContext: The MathContext arithmetic settings.
Returns
int An int whose value is -1, 0, or 1 as this is numerically less than, equal to, or greater than rhs.

divide

Added in API level 24
BigDecimal divide (BigDecimal rhs, 
                int round)

Returns a plain BigDecimal whose value is this/rhs, using fixed point arithmetic and a rounding mode.

The same as divide(BigDecimal, int, int), where the BigDecimal is rhs, and the second parameter is this.scale(), and the third is round.

The length of the decimal part (the scale) of the result will therefore be the same as the scale of the current object, if the latter were formatted without exponential notation.

Parameters
rhs BigDecimal: The BigDecimal for the right hand side of the division.
round int: The int rounding mode to be used for the division (see the MathContext class).
Returns
BigDecimal A plain BigDecimal whose value is this/rhs, using fixed point arithmetic and the specified rounding mode.
Throws
IllegalArgumentException if round is not a valid rounding mode.
ArithmeticException if rhs is zero.
ArithmeticException if round is ROUND_UNNECESSARY and this.scale() is insufficient to represent the result exactly.

divide

Added in API level 24
BigDecimal divide (BigDecimal rhs, 
                MathContext set)

Returns a BigDecimal whose value is this/rhs.

Implements the division (/) operator (as defined in the decimal documentation, see class header), and returns the result as a BigDecimal object.

Parameters
rhs BigDecimal: The BigDecimal for the right hand side of the division.
set MathContext: The MathContext arithmetic settings.
Returns
BigDecimal A BigDecimal whose value is this/rhs.
Throws
ArithmeticException if rhs is zero.

divide

Added in API level 24
BigDecimal divide (BigDecimal rhs)

Returns a plain BigDecimal whose value is this/rhs, using fixed point arithmetic.

The same as divide(BigDecimal, int), where the BigDecimal is rhs, and the rounding mode is ROUND_HALF_UP. The length of the decimal part (the scale) of the result will be the same as the scale of the current object, if the latter were formatted without exponential notation.

Parameters
rhs BigDecimal: The BigDecimal for the right hand side of the division.
Returns
BigDecimal A plain BigDecimal whose value is this/rhs, using fixed point arithmetic.
Throws
ArithmeticException If rhs is zero.

divide

Added in API level 24
BigDecimal divide (BigDecimal rhs, 
                int scale, 
                int round)

Returns a plain BigDecimal whose value is this/rhs, using fixed point arithmetic and a given scale and rounding mode.

The same as divide(BigDecimal, MathContext), where the BigDecimal is rhs, new MathContext(0, MathContext.PLAIN, false, round), except that the length of the decimal part (the scale) to be used for the result is explicit rather than being taken from this.

The length of the decimal part (the scale) of the result will be the same as the scale of the current object, if the latter were formatted without exponential notation.

Parameters
rhs BigDecimal: The BigDecimal for the right hand side of the division.
scale int: The int scale to be used for the result.
round int: The int rounding mode to be used for the division (see the MathContext class).
Returns
BigDecimal A plain BigDecimal whose value is this/rhs, using fixed point arithmetic and the specified rounding mode.
Throws
IllegalArgumentException if round is not a valid rounding mode.
ArithmeticException if rhs is zero.
ArithmeticException if scale is negative.
ArithmeticException if round is ROUND_UNNECESSARY and scale is insufficient to represent the result exactly.

divideInteger

Added in API level 24
BigDecimal divideInteger (BigDecimal rhs)

Returns a plain BigDecimal whose value is the integer part of this/rhs.

The same as divideInteger(BigDecimal, MathContext), where the BigDecimal is rhs , and the context is new MathContext(0, MathContext.PLAIN).

Parameters
rhs BigDecimal: The BigDecimal for the right hand side of the integer division.
Returns
BigDecimal A BigDecimal whose value is the integer part of this/rhs.
Throws
ArithmeticException if rhs is zero.

divideInteger

Added in API level 24
BigDecimal divideInteger (BigDecimal rhs, 
                MathContext set)

Returns a BigDecimal whose value is the integer part of this/rhs.

Implements the integer division operator (as defined in the decimal documentation, see class header), and returns the result as a BigDecimal object.

Parameters
rhs BigDecimal: The BigDecimal for the right hand side of the integer division.
set MathContext: The MathContext arithmetic settings.
Returns
BigDecimal A BigDecimal whose value is the integer part of this/rhs.
Throws
ArithmeticException if rhs is zero.
ArithmeticException if the result will not fit in the number of digits specified for the context.

doubleValue

Added in API level 24
double doubleValue ()

Converts this BigDecimal to a double. If the BigDecimal is out of the possible range for a double (64-bit signed floating point) result then an ArithmeticException is thrown.

The double produced is identical to result of expressing the BigDecimal as a String and then converting it using the Double(String) constructor; this can result in values of Double.NEGATIVE_INFINITY or Double.POSITIVE_INFINITY.

Returns
double A double corresponding to this.

equals

Added in API level 24
boolean equals (Object obj)

Compares this BigDecimal with rhs for equality.

If the parameter is null, or is not an instance of the BigDecimal type, or is not exactly equal to the current BigDecimal object, then false is returned. Otherwise, true is returned.

"Exactly equal", here, means that the String representations of the BigDecimal numbers are identical (they have the same characters in the same sequence).

The compareTo(BigDecimal, MathContext) method should be used for more general comparisons.

Parameters
obj Object: The Object for the right hand side of the comparison.
Returns
boolean A boolean whose value true if and only if the operands have identical string representations.
Throws
ClassCastException if rhs cannot be cast to a BigDecimal object.

See also:

floatValue

Added in API level 24
float floatValue ()

Converts this BigDecimal to a float. If the BigDecimal is out of the possible range for a float (32-bit signed floating point) result then an ArithmeticException is thrown.

The float produced is identical to result of expressing the BigDecimal as a String and then converting it using the Float(String) constructor; this can result in values of Float.NEGATIVE_INFINITY or Float.POSITIVE_INFINITY.

Returns
float A float corresponding to this.

format

Added in API level 24
String format (int before, 
                int after)

Returns the String representation of this BigDecimal, modified by layout parameters.

This method is provided as a primitive for use by more sophisticated classes, such as DecimalFormat , that can apply locale-sensitive editing of the result. The level of formatting that it provides is a necessary part of the BigDecimal class as it is sensitive to and must follow the calculation and rounding rules for BigDecimal arithmetic. However, if the function is provided elsewhere, it may be removed from this class.

The parameters, for both forms of the format method are all of type int. A value of -1 for any parameter indicates that the default action or value for that parameter should be used.

The parameters, before and after, specify the number of characters to be used for the integer part and decimal part of the result respectively. Exponential notation is not used. If either parameter is -1 (which indicates the default action), the number of characters used will be exactly as many as are needed for that part.

before must be a positive number; if it is larger than is needed to contain the integer part, that part is padded on the left with blanks to the requested length. If before is not large enough to contain the integer part of the number (including the sign, for negative numbers) an exception is thrown.

after must be a non-negative number; if it is not the same size as the decimal part of the number, the number will be rounded (or extended with zeros) to fit. Specifying 0 for after will cause the number to be rounded to an integer (that is, it will have no decimal part or decimal point). The rounding method will be the default, MathContext.ROUND_HALF_UP.

Other rounding methods, and the use of exponential notation, can be selected by using format(int, int, int, int, int, int). Using the two-parameter form of the method has exactly the same effect as using the six-parameter form with the final four parameters all being -1.

Parameters
before int: The int specifying the number of places before the decimal point. Use -1 for 'as many as are needed'.
after int: The int specifying the number of places after the decimal point. Use -1 for 'as many as are needed'.
Returns
String A String representing this BigDecimal, laid out according to the specified parameters
Throws
ArithmeticException if the number cannot be laid out as requested.
IllegalArgumentException if a parameter is out of range.

See also:

format

Added in API level 24
String format (int before, 
                int after, 
                int explaces, 
                int exdigits, 
                int exformint, 
                int exround)

Returns the String representation of this BigDecimal, modified by layout parameters and allowing exponential notation.

This method is provided as a primitive for use by more sophisticated classes, such as DecimalFormat , that can apply locale-sensitive editing of the result. The level of formatting that it provides is a necessary part of the BigDecimal class as it is sensitive to and must follow the calculation and rounding rules for BigDecimal arithmetic. However, if the function is provided elsewhere, it may be removed from this class.

The parameters are all of type int. A value of -1 for any parameter indicates that the default action or value for that parameter should be used.

The first two parameters (before and after) specify the number of characters to be used for the integer part and decimal part of the result respectively, as defined for format(int, int). If either of these is -1 (which indicates the default action), the number of characters used will be exactly as many as are needed for that part.

The remaining parameters control the use of exponential notation and rounding. Three (explaces, exdigits, and exform) control the exponent part of the result. As before, the default action for any of these parameters may be selected by using the value -1.

explaces must be a positive number; it sets the number of places (digits after the sign of the exponent) to be used for any exponent part, the default (when explaces is -1) being to use as many as are needed. If explaces is not -1, space is always reserved for an exponent; if one is not needed (for example, if the exponent will be 0) then explaces+2 blanks are appended to the result. (This preserves vertical alignment of similarly formatted numbers in a monospace font.) If explaces is not -1 and is not large enough to contain the exponent, an exception is thrown.

exdigits sets the trigger point for use of exponential notation. If, before any rounding, the number of places needed before the decimal point exceeds exdigits, or if the absolute value of the result is less than 0.000001, then exponential form will be used, provided that exdigits was specified. When exdigits is -1, exponential notation will never be used. If 0 is specified for exdigits, exponential notation is always used unless the exponent would be 0.

exform sets the form for exponential notation (if needed). It may be either SCIENTIFIC or ENGINEERING. If the latter, engineering, form is requested, up to three digits (plus sign, if negative) may be needed for the integer part of the result (before ). Otherwise, only one digit (plus sign, if negative) is needed.

Finally, the sixth argument, exround, selects the rounding algorithm to be used, and must be one of the values indicated by a public constant in the MathContext class whose name starts with ROUND_ . The default (ROUND_HALF_UP) may also be selected by using the value -1, as before.

The special value MathContext.ROUND_UNNECESSARY may be used to detect whether non-zero digits are discarded -- if exround has this value than if non-zero digits would be discarded (rounded) during formatting then an ArithmeticException is thrown.

Parameters
before int: The int specifying the number of places before the decimal point. Use -1 for 'as many as are needed'.
after int: The int specifying the number of places after the decimal point. Use -1 for 'as many as are needed'.
explaces int: The int specifying the number of places to be used for any exponent. Use -1 for 'as many as are needed'.
exdigits int: The int specifying the trigger (digits before the decimal point) which if exceeded causes exponential notation to be used. Use 0 to force exponential notation. Use -1 to force plain notation (no exponential notation).
exformint int: The int specifying the form of exponential notation to be used ( SCIENTIFIC or ENGINEERING).
exround int: The int specifying the rounding mode to use. Use -1 for the default, ROUND_HALF_UP.
Returns
String A String representing this BigDecimal, laid out according to the specified parameters
Throws
ArithmeticException if the number cannot be laid out as requested.
IllegalArgumentException if a parameter is out of range.

See also:

hashCode

Added in API level 24
int hashCode ()

Returns the hashcode for this BigDecimal. This hashcode is suitable for use by the java.util.Hashtable class.

Note that two BigDecimal objects are only guaranteed to produce the same hashcode if they are exactly equal (that is, the String representations of the BigDecimal numbers are identical -- they have the same characters in the same sequence).

Returns
int An int that is the hashcode for this.

intValue

Added in API level 24
int intValue ()

Converts this BigDecimal to an int. If the BigDecimal has a non-zero decimal part it is discarded. If the BigDecimal is out of the possible range for an int (32-bit signed integer) result then only the low-order 32 bits are used. (That is, the number may be decapitated.) To avoid unexpected errors when these conditions occur, use the intValueExact() method.

Returns
int An int converted from this, truncated and decapitated if necessary.

intValueExact

Added in API level 24
int intValueExact ()

Converts this BigDecimal to an int. If the BigDecimal has a non-zero decimal part or is out of the possible range for an int (32-bit signed integer) result then an ArithmeticException is thrown.

Returns
int An int equal in value to this.
Throws
ArithmeticException if this has a non-zero decimal part, or will not fit in an int.

longValue

Added in API level 24
long longValue ()

Converts this BigDecimal to a long. If the BigDecimal has a non-zero decimal part it is discarded. If the BigDecimal is out of the possible range for a long (64-bit signed integer) result then only the low-order 64 bits are used. (That is, the number may be decapitated.) To avoid unexpected errors when these conditions occur, use the longValueExact() method.

Returns
long A long converted from this, truncated and decapitated if necessary.

longValueExact

Added in API level 24
long longValueExact ()

Converts this BigDecimal to a long. If the BigDecimal has a non-zero decimal part or is out of the possible range for a long (64-bit signed integer) result then an ArithmeticException is thrown.

Returns
long A long equal in value to this.
Throws
ArithmeticException if this has a non-zero decimal part, or will not fit in a long.

max

Added in API level 24
BigDecimal max (BigDecimal rhs)

Returns a plain BigDecimal whose value is the maximum of this and rhs.

The same as max(BigDecimal, MathContext), where the BigDecimal is rhs, and the context is new MathContext(0, MathContext.PLAIN).

Parameters
rhs BigDecimal: The BigDecimal for the right hand side of the comparison.
Returns
BigDecimal A BigDecimal whose value is the maximum of this and rhs.

max

Added in API level 24
BigDecimal max (BigDecimal rhs, 
                MathContext set)

Returns a BigDecimal whose value is the maximum of this and rhs.

Returns the larger of the current object and the first parameter.

If calling the compareTo(BigDecimal, MathContext) method with the same parameters would return 1 or 0, then the result of calling the plus(MathContext) method on the current object (using the same MathContext parameter) is returned. Otherwise, the result of calling the plus(MathContext) method on the first parameter object (using the same MathContext parameter) is returned.

Parameters
rhs BigDecimal: The BigDecimal for the right hand side of the comparison.
set MathContext: The MathContext arithmetic settings.
Returns
BigDecimal A BigDecimal whose value is the maximum of this and rhs.

min

Added in API level 24
BigDecimal min (BigDecimal rhs)

Returns a plain BigDecimal whose value is the minimum of this and rhs.

The same as min(BigDecimal, MathContext), where the BigDecimal is rhs, and the context is new MathContext(0, MathContext.PLAIN).

Parameters
rhs BigDecimal: The BigDecimal for the right hand side of the comparison.
Returns
BigDecimal A BigDecimal whose value is the minimum of this and rhs.

min

Added in API level 24
BigDecimal min (BigDecimal rhs, 
                MathContext set)

Returns a BigDecimal whose value is the minimum of this and rhs.

Returns the smaller of the current object and the first parameter.

If calling the compareTo(BigDecimal, MathContext) method with the same parameters would return -1 or 0, then the result of calling the plus(MathContext) method on the current object (using the same MathContext parameter) is returned. Otherwise, the result of calling the plus(MathContext) method on the first parameter object (using the same MathContext parameter) is returned.

Parameters
rhs BigDecimal: The BigDecimal for the right hand side of the comparison.
set MathContext: The MathContext arithmetic settings.
Returns
BigDecimal A BigDecimal whose value is the minimum of this and rhs.

movePointLeft

Added in API level 24
BigDecimal movePointLeft (int n)

Returns a plain BigDecimal whose decimal point has been moved to the left by a specified number of positions. The parameter, n, specifies the number of positions to move the decimal point. That is, if n is 0 or positive, the number returned is given by:

this.multiply(TEN.pow(new BigDecimal(-n)))

n may be negative, in which case the method returns the same result as movePointRight(-n) .

Parameters
n int: The int specifying the number of places to move the decimal point leftwards.
Returns
BigDecimal A BigDecimal derived from this, with the decimal point moved n places to the left.

movePointRight

Added in API level 24
BigDecimal movePointRight (int n)

Returns a plain BigDecimal whose decimal point has been moved to the right by a specified number of positions. The parameter, n, specifies the number of positions to move the decimal point. That is, if n is 0 or positive, the number returned is given by:

this.multiply(TEN.pow(new BigDecimal(n)))

n may be negative, in which case the method returns the same result as movePointLeft(-n) .

Parameters
n int: The int specifying the number of places to move the decimal point rightwards.
Returns
BigDecimal A BigDecimal derived from this, with the decimal point moved n places to the right.

multiply

Added in API level 24
BigDecimal multiply (BigDecimal rhs)

Returns a plain BigDecimal whose value is this*rhs, using fixed point arithmetic.

The same as add(BigDecimal, MathContext), where the BigDecimal is rhs, and the context is new MathContext(0, MathContext.PLAIN).

The length of the decimal part (the scale) of the result will be the sum of the scales of the operands, if they were formatted without exponential notation.

Parameters
rhs BigDecimal: The BigDecimal for the right hand side of the multiplication.
Returns
BigDecimal A BigDecimal whose value is this*rhs, using fixed point arithmetic.

multiply

Added in API level 24
BigDecimal multiply (BigDecimal rhs, 
                MathContext set)

Returns a BigDecimal whose value is this*rhs.

Implements the multiplication (*) operator (as defined in the decimal documentation, see class header), and returns the result as a BigDecimal object.

Parameters
rhs BigDecimal: The BigDecimal for the right hand side of the multiplication.
set MathContext: The MathContext arithmetic settings.
Returns
BigDecimal A BigDecimal whose value is this*rhs.

negate

Added in API level 24
BigDecimal negate ()

Returns a plain BigDecimal whose value is -this.

The same as negate(MathContext), where the context is new MathContext(0, MathContext.PLAIN) .

The length of the decimal part (the scale) of the result will be be this.scale()

Returns
BigDecimal A BigDecimal whose value is -this.

negate

Added in API level 24
BigDecimal negate (MathContext set)

Returns a BigDecimal whose value is -this.

Implements the negation (Prefix -) operator (as defined in the decimal documentation, see class header), and returns the result as a BigDecimal object.

Parameters
set MathContext: The MathContext arithmetic settings.
Returns
BigDecimal A BigDecimal whose value is -this.

plus

Added in API level 24
BigDecimal plus (MathContext set)

Returns a BigDecimal whose value is +this.

Implements the plus (Prefix +) operator (as defined in the decimal documentation, see class header), and returns the result as a BigDecimal object.

This method is useful for rounding or otherwise applying a context to a decimal value.

Parameters
set MathContext: The MathContext arithmetic settings.
Returns
BigDecimal A BigDecimal whose value is +this.

plus

Added in API level 24
BigDecimal plus ()

Returns a plain BigDecimal whose value is +this. Note that this is not necessarily a plain BigDecimal, but the result will always be.

The same as plus(MathContext), where the context is new MathContext(0, MathContext.PLAIN).

The length of the decimal part (the scale) of the result will be be this.scale()

Returns
BigDecimal A BigDecimal whose value is +this.

pow

Added in API level 24
BigDecimal pow (BigDecimal rhs, 
                MathContext set)

Returns a BigDecimal whose value is this**rhs.

Implements the power (^) operator (as defined in the decimal documentation, see class header), and returns the result as a BigDecimal object.

The first parameter is the power to which the this will be raised; it must be in the range -999999999 through 999999999, and must have a decimal part of zero. Note that these restrictions may be removed in the future, so they should not be used as a test for a whole number.

If the digits setting of the MathContext parameter is 0, the power must be zero or positive.

Parameters
rhs BigDecimal: The BigDecimal for the right hand side of the operation (the power).
set MathContext: The MathContext arithmetic settings.
Returns
BigDecimal A BigDecimal whose value is this**rhs.
Throws
ArithmeticException if rhs is out of range or is not a whole number.

pow

Added in API level 24
BigDecimal pow (BigDecimal rhs)

Returns a plain BigDecimal whose value is this**rhs, using fixed point arithmetic.

The same as pow(BigDecimal, MathContext), where the BigDecimal is rhs, and the context is new MathContext(0, MathContext.PLAIN).

The parameter is the power to which the this will be raised; it must be in the range 0 through 999999999, and must have a decimal part of zero. Note that these restrictions may be removed in the future, so they should not be used as a test for a whole number.

In addition, the power must not be negative, as no MathContext is used and so the result would then always be 0.

Parameters
rhs BigDecimal: The BigDecimal for the right hand side of the operation (the power).
Returns
BigDecimal A BigDecimal whose value is this**rhs, using fixed point arithmetic.
Throws
ArithmeticException if rhs is out of range or is not a whole number.

remainder

Added in API level 24
BigDecimal remainder (BigDecimal rhs)

Returns a plain BigDecimal whose value is the remainder of this/rhs, using fixed point arithmetic.

The same as remainder(BigDecimal, MathContext), where the BigDecimal is rhs, and the context is new MathContext(0, MathContext.PLAIN).

This is not the modulo operator -- the result may be negative.

Parameters
rhs BigDecimal: The BigDecimal for the right hand side of the remainder operation.
Returns
BigDecimal A BigDecimal whose value is the remainder of this/rhs, using fixed point arithmetic.
Throws
ArithmeticException if rhs is zero.

remainder

Added in API level 24
BigDecimal remainder (BigDecimal rhs, 
                MathContext set)

Returns a BigDecimal whose value is the remainder of this/rhs.

Implements the remainder operator (as defined in the decimal documentation, see class header), and returns the result as a BigDecimal object.

This is not the modulo operator -- the result may be negative.

Parameters
rhs BigDecimal: The BigDecimal for the right hand side of the remainder operation.
set MathContext: The MathContext arithmetic settings.
Returns
BigDecimal A BigDecimal whose value is the remainder of this+rhs.
Throws
ArithmeticException if rhs is zero.
ArithmeticException if the integer part of the result will not fit in the number of digits specified for the context.

scale

Added in API level 24
int scale ()

Returns the scale of this BigDecimal. Returns a non-negative int which is the scale of the number. The scale is the number of digits in the decimal part of the number if the number were formatted without exponential notation.

Returns
int An int whose value is the scale of this BigDecimal.

setScale

Added in API level 24
BigDecimal setScale (int scale, 
                int round)

Returns a plain BigDecimal with a given scale.

If the given scale (which must be zero or positive) is the same as or greater than the length of the decimal part (the scale) of this BigDecimal then trailing zeros will be added to the decimal part as necessary.

If the given scale is less than the length of the decimal part (the scale) of this BigDecimal then trailing digits will be removed, and the rounding mode given by the second parameter is used to determine if the remaining digits are affected by a carry. In this case, an IllegalArgumentException is thrown if round is not a valid rounding mode.

If round is MathContext.ROUND_UNNECESSARY, an ArithmeticException is thrown if any discarded digits are non-zero.

Parameters
scale int: The int specifying the scale of the resulting BigDecimal.
round int: The int rounding mode to be used for the division (see the MathContext class).
Returns
BigDecimal A plain BigDecimal with the given scale.
Throws
IllegalArgumentException if round is not a valid rounding mode.
ArithmeticException if scale is negative.
ArithmeticException if round is MathContext.ROUND_UNNECESSARY, and reducing scale would discard non-zero digits.

setScale

Added in API level 24
BigDecimal setScale (int scale)

Returns a plain BigDecimal with a given scale.

If the given scale (which must be zero or positive) is the same as or greater than the length of the decimal part (the scale) of this BigDecimal then trailing zeros will be added to the decimal part as necessary.

If the given scale is less than the length of the decimal part (the scale) of this BigDecimal then trailing digits will be removed, and in this case an ArithmeticException is thrown if any discarded digits are non-zero.

The same as setScale(int, int), where the first parameter is the scale, and the second is MathContext.ROUND_UNNECESSARY.

Parameters
scale int: The int specifying the scale of the resulting BigDecimal.
Returns
BigDecimal A plain BigDecimal with the given scale.
Throws
ArithmeticException if scale is negative.
ArithmeticException if reducing scale would discard non-zero digits.

shortValueExact

Added in API level 24
short shortValueExact ()

Converts this BigDecimal to a short. If the BigDecimal has a non-zero decimal part or is out of the possible range for a short (16-bit signed integer) result then an ArithmeticException is thrown.

Returns
short A short equal in value to this.
Throws
ArithmeticException if this has a non-zero decimal part, or will not fit in a short.

signum

Added in API level 24
int signum ()

Returns the sign of this BigDecimal, as an int. This returns the signum function value that represents the sign of this BigDecimal. That is, -1 if the BigDecimal is negative, 0 if it is numerically equal to zero, or 1 if it is positive.

Returns
int An int which is -1 if the BigDecimal is negative, 0 if it is numerically equal to zero, or 1 if it is positive.

subtract

Added in API level 24
BigDecimal subtract (BigDecimal rhs, 
                MathContext set)

Returns a BigDecimal whose value is this-rhs.

Implements the subtraction (-) operator (as defined in the decimal documentation, see class header), and returns the result as a BigDecimal object.

Parameters
rhs BigDecimal: The BigDecimal for the right hand side of the subtraction.
set MathContext: The MathContext arithmetic settings.
Returns
BigDecimal A BigDecimal whose value is this-rhs.

subtract

Added in API level 24
BigDecimal subtract (BigDecimal rhs)

Returns a plain BigDecimal whose value is this-rhs, using fixed point arithmetic.

The same as subtract(BigDecimal, MathContext), where the BigDecimal is rhs, and the context is new MathContext(0, MathContext.PLAIN).

The length of the decimal part (the scale) of the result will be the maximum of the scales of the two operands.

Parameters
rhs BigDecimal: The BigDecimal for the right hand side of the subtraction.
Returns
BigDecimal A BigDecimal whose value is this-rhs, using fixed point arithmetic.

toBigDecimal

Added in API level 24
BigDecimal toBigDecimal ()

Converts this BigDecimal to a java.math.BigDecimal.

This is an exact conversion; the result is the same as if the BigDecimal were formatted as a plain number without any rounding or exponent and then the java.math.BigDecimal(java.lang.String) constructor were used to construct the result.

(Note: this method is provided only in the android.icu.math version of the BigDecimal class. It would not be present in a java.math version.)

Returns
BigDecimal The java.math.BigDecimal equal in value to this BigDecimal.

toBigInteger

Added in API level 24
BigInteger toBigInteger ()

Converts this BigDecimal to a java.math.BigInteger.

Any decimal part is truncated (discarded). If an exception is desired should the decimal part be non-zero, use toBigIntegerExact().

Returns
BigInteger The java.math.BigInteger equal in value to the integer part of this BigDecimal.

toBigIntegerExact

Added in API level 24
BigInteger toBigIntegerExact ()

Converts this BigDecimal to a java.math.BigInteger.

An exception is thrown if the decimal part (if any) is non-zero.

Returns
BigInteger The java.math.BigInteger equal in value to the integer part of this BigDecimal.
Throws
ArithmeticException if this has a non-zero decimal part.

toCharArray

Added in API level 24
char[] toCharArray ()

Returns the BigDecimal as a character array. The result of this method is the same as using the sequence toString().toCharArray(), but avoids creating the intermediate String and char[] objects.

Returns
char[] The char[] array corresponding to this BigDecimal.

toString

Added in API level 24
String toString ()

Returns the BigDecimal as a String. This returns a String that exactly represents this BigDecimal, as defined in the decimal documentation (see class header).

By definition, using the BigDecimal(String) constructor on the result String will create a BigDecimal that is exactly equal to the original BigDecimal.

Returns
String The String exactly corresponding to this BigDecimal.

See also:

unscaledValue

Added in API level 24
BigInteger unscaledValue ()

Returns the number as a BigInteger after removing the scale. That is, the number is expressed as a plain number, any decimal point is then removed (retaining the digits of any decimal part), and the result is then converted to a BigInteger.

Returns
BigInteger The java.math.BigInteger equal in value to this BigDecimal multiplied by ten to the power of this.scale().

valueOf

Added in API level 24
BigDecimal valueOf (double dub)

Translates a double to a BigDecimal.

Returns a BigDecimal which is the decimal representation of the 64-bit signed binary floating point parameter. If the parameter is infinite, or is not a number (NaN), a NumberFormatException is thrown.

The number is constructed as though num had been converted to a String using the Double.toString() method and the BigDecimal(java.lang.String) constructor had then been used. This is typically not an exact conversion.

Parameters
dub double: The double to be translated.
Returns
BigDecimal The BigDecimal equal in value to dub.
Throws
NumberFormatException if the parameter is infinite or not a number.

valueOf

Added in API level 24
BigDecimal valueOf (long lint)

Translates a long to a BigDecimal. That is, returns a plain BigDecimal whose value is equal to the given long.

Parameters
lint long: The long to be translated.
Returns
BigDecimal The BigDecimal equal in value to lint.

valueOf

Added in API level 24
BigDecimal valueOf (long lint, 
                int scale)

Translates a long to a BigDecimal with a given scale. That is, returns a plain BigDecimal whose unscaled value is equal to the given long, adjusted by the second parameter, scale.

The result is given by:

(new BigDecimal(lint)).divide(TEN.pow(new BigDecimal(scale)))

A NumberFormatException is thrown if scale is negative.

Parameters
lint long: The long to be translated.
scale int: The int scale to be applied.
Returns
BigDecimal The BigDecimal equal in value to lint.
Throws
NumberFormatException if the scale is negative.

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