Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.util.ArrayList;
import java.util.Collection;
import java.util.function.Consumer;
import java.util.function.Predicate;

public class Main {

    public static void main(String[] args) {
        Collection2<Integer> numbers = new MyCollection2Impl<>();
        numbers.add(2);
        numbers.add(3);
        numbers.add(5);
        numbers.add(7);
        numbers.add(9);
        numbers.forEachIf(System.out::println, i -> i > 5);
    }

}

class MyCollection2Impl<T> extends ArrayList<T> implements Collection2<T> {

    private static final long serialVersionUID = -1202005142690509313L;

}

interface Collection2<T> extends Collection<T> {
    default void forEachIf(Consumer<T> action, Predicate<T> filter) {
        this.stream().filter(filter).forEach(action);
    }
}