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import java.util.Arrays;

import java.util.List;

import java.util.function.Consumer;

import java.util.function.Function;

import java.util.function.Predicate;

import java.util.stream.Stream;

public class StreamAPI {

public static void main(String[] args) {

List<Integer> myList = Arrays.asList(4, 2, 1, 5, 7, 8, 12, 22, 10, 13);

Stream<Integer> stream = myList.stream();

// Functional interface that specifies filter condition

Predicate<Integer> predicate = (n) -> n%2 == 0? true : false;

// Specifies the function to be applied

Function<Integer, Integer> function = n -> n*2;

//

Consumer<Integer> consumer = (n) -> System.out.println(n);

stream.filter(predicate)

.map(function)

.forEach(consumer);

// myList.forEach(n -> System.out.println(n));

// stream.forEach(n -> System.out.println(n));

}

}