ConcurrentSkipListSet3.java

package ConcurrentSkipListSet;

import java.util.concurrent.ConcurrentSkipListSet;
import java.util.Set;
public class ConcurrentSkipListSet3 {
    public static void main(String[] args) {
        Set<Float> set = new ConcurrentSkipListSet<>();

        set.add(1.09f);
        set.add(2.89f);
        set.add(3.90f);
        set.add(4.98f);

        // addAll
        Set<Float> set1 = new ConcurrentSkipListSet<>();
        set1.addAll(set);
        System.out.println(set1);

        // containsAll
        Boolean b = set.containsAll(set1);
        System.out.println(b);

        // retainAll

        set1.retainAll(set);
        System.out.println(set1);

        // toArray
        Object[] arr = set1.toArray();
        for (Object o : arr) {
            System.out.println(o);
        }

        for (int i = 0; i < arr.length; i++) {
            System.out.println(arr[i]);
        }

        // toArray(T[] a)
        Float[] arr1 = new Float[set1.size()];
        set1.toArray(arr1);
        for (int i = 0; i < arr1.length; i++) {
            System.out.println(arr1[i]);
        }

        // hashCode
        System.out.println(set1.hashCode());

    }

    
}