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Added in API level 24

java.util.function

Interfaces

BiConsumer<T, U> Represents an operation that accepts two input arguments and returns no result. 
BiFunction<T, U, R> Represents a function that accepts two arguments and produces a result. 
BinaryOperator<T> Represents an operation upon two operands of the same type, producing a result of the same type as the operands. 
BiPredicate<T, U> Represents a predicate (boolean-valued function) of two arguments. 
BooleanSupplier Represents a supplier of boolean-valued results. 
Consumer<T> Represents an operation that accepts a single input argument and returns no result. 
DoubleBinaryOperator Represents an operation upon two double-valued operands and producing a double-valued result. 
DoubleConsumer Represents an operation that accepts a single double-valued argument and returns no result. 
DoubleFunction<R> Represents a function that accepts a double-valued argument and produces a result. 
DoublePredicate Represents a predicate (boolean-valued function) of one double-valued argument. 
DoubleSupplier Represents a supplier of double-valued results. 
DoubleToIntFunction Represents a function that accepts a double-valued argument and produces an int-valued result. 
DoubleToLongFunction Represents a function that accepts a double-valued argument and produces a long-valued result. 
DoubleUnaryOperator Represents an operation on a single double-valued operand that produces a double-valued result. 
Function<T, R> Represents a function that accepts one argument and produces a result. 
IntBinaryOperator Represents an operation upon two int-valued operands and producing an int-valued result. 
IntConsumer Represents an operation that accepts a single int-valued argument and returns no result. 
IntFunction<R> Represents a function that accepts an int-valued argument and produces a result. 
IntPredicate Represents a predicate (boolean-valued function) of one int-valued argument. 
IntSupplier Represents a supplier of int-valued results. 
IntToDoubleFunction Represents a function that accepts an int-valued argument and produces a double-valued result. 
IntToLongFunction Represents a function that accepts an int-valued argument and produces a long-valued result. 
IntUnaryOperator Represents an operation on a single int-valued operand that produces an int-valued result. 
LongBinaryOperator Represents an operation upon two long-valued operands and producing a long-valued result. 
LongConsumer Represents an operation that accepts a single long-valued argument and returns no result. 
LongFunction<R> Represents a function that accepts a long-valued argument and produces a result. 
LongPredicate Represents a predicate (boolean-valued function) of one long-valued argument. 
LongSupplier Represents a supplier of long-valued results. 
LongToDoubleFunction Represents a function that accepts a long-valued argument and produces a double-valued result. 
LongToIntFunction Represents a function that accepts a long-valued argument and produces an int-valued result. 
LongUnaryOperator Represents an operation on a single long-valued operand that produces a long-valued result. 
ObjDoubleConsumer<T> Represents an operation that accepts an object-valued and a double-valued argument, and returns no result. 
ObjIntConsumer<T> Represents an operation that accepts an object-valued and a int-valued argument, and returns no result. 
ObjLongConsumer<T> Represents an operation that accepts an object-valued and a long-valued argument, and returns no result. 
Predicate<T> Represents a predicate (boolean-valued function) of one argument. 
Supplier<T> Represents a supplier of results. 
ToDoubleBiFunction<T, U> Represents a function that accepts two arguments and produces a double-valued result. 
ToDoubleFunction<T> Represents a function that produces a double-valued result. 
ToIntBiFunction<T, U> Represents a function that accepts two arguments and produces an int-valued result. 
ToIntFunction<T> Represents a function that produces an int-valued result. 
ToLongBiFunction<T, U> Represents a function that accepts two arguments and produces a long-valued result. 
ToLongFunction<T> Represents a function that produces a long-valued result. 
UnaryOperator<T> Represents an operation on a single operand that produces a result of the same type as its operand. 

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