TreeSet clone() Method in Java (original) (raw)

Last Updated : 26 Nov, 2018

The Java.util.TreeSet.clone() method is used to return a shallow copy of the mentioned tree set. It just creates a copy of the set.Syntax:

Tree_Set.clone()

Parameters: The method does not take any parameters.Return Value: The function just returns a copy of the TreeSet. Below program illustrates the use of Java.util.TreeSet.clone() method:

Java `

// Java code to illustrate addAll() import java.io.*; import java.util.TreeSet;

public class TreeSetDemo { public static void main(String args[]) { // Creating an empty TreeSet TreeSet tree = new TreeSet();

    // Use add() method to add elements into the Set
    tree.add("Welcome");
    tree.add("To");
    tree.add("Geeks");
    tree.add("4");
    tree.add("Geeks");
    tree.add("TreeSet");

    // Displaying the TreeSet
    System.out.println("TreeSet: " + tree);

    // Creating a new cloned set
    TreeSet cloned_set = new TreeSet();

    // Cloning the set using clone() method
    cloned_set = (TreeSet)tree.clone();

    // Displaying the cloned_set
    System.out.println("The cloned TreeSet: " + cloned_set);
}

}

`

Output:

TreeSet: [4, Geeks, To, TreeSet, Welcome] The cloned TreeSet: [4, Geeks, To, TreeSet, Welcome]

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