ConcurrentSkipListSet clone() method in Java

The clone() method of java.util.concurrent.ConcurrentSkipListSet is an in-built function in Java which returns a shallow copy of this ConcurrentSkipListSet instance. Syntax:

ConcurrentSkipListSet.clone()

Parameters: The function does not accept any parameter. Return Value: The function returns a shallow copy of ConcurrentSkipListSet. Below programs illustrate the ConcurrentSkipListSet.clone() method: Program 1:

Java

// Java Program Demonstrate clone()
// method of ConcurrentSkipListSet
import java.util.concurrent.*;

class ConcurrentSkipListSetCloneExample1 {
    public static void main(String[] args)
    {

        // Initializing the set
        ConcurrentSkipListSet<Integer>
            set = new ConcurrentSkipListSet<Integer>();

        // Adding elements to this set
        for (int i = 10; i <= 15; i++)
            set.add(i);

        // Printing elements of the set
        System.out.println("The set contains: " + set);

        // Cloning the ConcurrentSkipListSet
        ConcurrentSkipListSet<Integer> clone_set = set.clone();

        // Adding elements to the clone set
        clone_set.add(16);

        // Printing elements of the clone set
        System.out.println("The clone set contains: " + clone_set);
    }
}

Output:

The set contains: [10, 11, 12, 13, 14, 15]
The clone set contains: [10, 11, 12, 13, 14, 15, 16]

Program 2:

Java

// Java Program Demonstrate clone()
// method of ConcurrentSkipListSet */
import java.util.concurrent.*;

class ConcurrentSkipListSetCloneExample2 {
    public static void main(String[] args)
    {

        // Initializing the set
        ConcurrentSkipListSet<String>
            set = new ConcurrentSkipListSet<String>();

        // Adding elements to this set
        set.add("Gfg");
        set.add("is");
        set.add("fun");

        // Printing elements of the set
        System.out.println("The set contains: " + set);

        // Cloning the ConcurrentSkipListSet
        ConcurrentSkipListSet<String> clone_set = set.clone();

        // Adding elements to the clone set
        clone_set.add("site");

        // Printing elements of the clone set
        System.out.println("The clone set contains: " + clone_set);
    }
}

Output:

The set contains: [Gfg, fun, is]
The clone set contains: [Gfg, fun, is, site]

Reference: https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/ConcurrentSkipListSet.html#clone()

ConcurrentSkipListSet clone() method in Java

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