AppHashSet.java

package ro.virtualcampus.set;

import java.util.HashSet;

public class AppHashSet {

    public static void main(String[] args) {
        
        HashSet<String> multime1 = new HashSet<String>();
        multime1.add("Iulian");
        multime1.add("Corina");
        multime1.add("Ghita");
        multime1.add("Silviu");
        System.out.printf("multime nume %s %n", multime1);

        
        for (String element : multime1) {
            System.out.printf("%s, ", element);
        }
        System.out.printf("%n");
        
        HashSet<String> multime2 = new HashSet<String>();
        multime2.add("Maria");
        multime2.add("Ghita");
        multime2.add("Irina");

        multime1.addAll(multime2);
        System.out.printf("multime nume %s %n", multime1);
        
        multime1.removeAll(multime2);
        System.out.printf("multime nume %s %n", multime1);
        
        multime1.retainAll(multime2);
        System.out.printf("multime nume %s %n", multime1);

    }

}