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A list of all the functional interfaces in java

Andreas Lundblad

Here is a complete list of all the functional interfaces available in the standard Java API.

Interface	Type
Runnable	→
BiConsumer(T, U)	T, U →
BiFunction(T, U, R)	T, U → R
BinaryOperator	T, T → R
BiPredicate<T, U>	T, U → boolean
BooleanSupplier	→ boolean
Consumer	T →
DoubleBinaryOperator	double, double → double
DoubleConsumer	double →
DoubleFunction	double → R
DoublePredicate	double → boolean
DoubleSupplier	boolean →
DoubleToIntFunction	double → int
DoubleToLongFunction	double → long
DoubleUnaryOperator	double → double
Function<T, R>	T → R
IntBinaryOperator	int → int
IntConsumer	int →
IntFunction	int → R
IntPredicate	int → boolean
IntSupplier	→ int
IntToDoubleFunction	int → double
IntToLongFunction	int → long
IntUnaryOperator	int → int
LongBinaryOperator	long, long → long
LongConsumer	long →
LongFunction	long → R
LongPredicate	long → boolean
LongSupplier	→ long
LongToDoubleFunction	long → double
LongToIntFunction	long → int
LongUnaryOperator	long → long
ObjDoubleConsumer	T, double →
ObjIntConsumer	T, int →
ObjLongConsumer	T, long →
Predicate	T → boolean
Supplier	→ T
ToDoubleBiFunction<T, U>	T, U → double
ToDoubleFunction	T → double
ToIntBiFunction<T, U>	T, U → int
ToIntFunction	T → int
ToLongBiFunction<T, U>	T, U → long
ToLongFunction	T → long
UnaryOperator	T → T

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CONTRIBUTOR

Andreas Lundblad

License: Creative Commons -Attribution -ShareAlike 4.0 (CC-BY-SA 4.0)

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