functional_programming

Project to learn java functional programming

Function

It is a functional interface that takes a single argument and returns a value.

• Example:

Function<String, Integer> length = x -> x.length();

BiFunction

It is similar to Function, but it takes two arguments and returns a value.

• Example:

BiFunction<Integer, Integer, Integer> sum = (x, y) -> x + y

Consumer

It takes a single argument and does not return a value.

• Example:

Consumer<String> print = x -> System.out.println(x);

BiConsumer

It is similar to Consumer, but it takes two arguments and does not return a value.

• Example:

BiConsumer<String, String> print = (x, y) -> System.out.println(x + y);

Predicate

It takes a single argument and returns a boolean value.

• Example:

Predicate<String> isEmpty = x -> x.isEmpty();

Supplier

It does not take any argument and returns a value.

• Example:

Supplier<String> randomUUID = () -> UUID.randomUUID().toString();