Consumer Functional Interface

Consumers are functional interfaces that take in a parameter and do not produce anything.

Below are some of the functional interfaces which can be categorized as Consumers.

Consumer<T>	Represents an operation that accepts a single (reference type) input argument and returns no result	void accept(T t)
DoubleConsumer	Accepts a single double-value argument and returns no result	void accept(double value)
IntConsumer	Accepts a single int-value argument and returns no result	void accept(int value)
LongConsumer	Accepts a single long-value argument and returns no result	void accept(long value)
BiConsumer<T, U>	Represents an operation that accepts two (reference type) input arguments and returns no result	void accept(T t, U u)
ObjDoubleConsumer<T>	Accepts an object-value and a double-value argument, and returns no result	void accept(T t, double value)
ObjIntConsumer<T>	Accepts an object-value and an int-value argument, and returns no result	void accept(T t, int value)
ObjLongConsumer<T>	Accepts an object-value and a long-value argument, and returns no result	void accept(T t, long value)