NewAPICollections.java

package examples;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Comparator;
import java.util.List;

public class NewAPICollections {

    public static void main(String[] args) {

        Person p1 = new Person("Alice", 23);
        Person p2 = new Person("Brian", 56);
        Person p3 = new Person("Chelsea", 46);
        Person p4 = new Person("David", 28);
        Person p5 = new Person("Erica", 37);
        Person p6 = new Person("Francisco", 18);

        List<Person> people = new ArrayList<>(Arrays.asList(p1, p2, p3, p4, p5, p6));
    
        // -----------Example forEach------------
        System.out.println("Example forEach");
        people.forEach(person -> System.out.println(person));
        // Example forEach using method reference
        people.forEach(System.out::println);

        // -----------Example removeIf ------------
        System.out.println("Example removeIf");
        people.removeIf(person -> person.getAge() < 30);
        people.forEach(System.out::println);
        
        // -----------Example replaceAll ------------
        System.out.println("Example replaceAll");
        people.replaceAll(person -> new Person(person.getName().toUpperCase(), person.getAge()));
        people.forEach(System.out::println);
        
        // -----------Example sort(in place ascending sorting) ------------
        System.out.println("Example sort ascending");
        people.sort(Comparator.comparing(Person::getAge));
        people.forEach(System.out::println);
        
        // -----------Example sort(in place descending sorting) ------------
        System.out.println("Example sort descending");
        people.sort(Comparator.comparing(Person::getAge).reversed());
        people.forEach(System.out::println);
    }

}