Java-Collection-Framework-and-Java-Set/HashSetDemo14.java at main · AvinandanBose/Java-Collection-Framework-and-Java-Set · GitHub

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import java.util.HashSet;

public class HashSetDemo14 {


    public static void main(String[] args) {
        HashSet<String> set = new HashSet<>();
        HashSet<String> set1 = new HashSet<>();
        set.add("A");
        set.add("a");
        set.add("B");
        set.add("b");
        set1.add("A");
        set1.add("a");
        set1.add("B");
        System.out.println(set1);

        Boolean b = set.containsAll(set);

        System.out.println(b);

    }

}