Java : Collection Framework : TreeMap (Clone)

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TreeMapExample.java

import java.util.TreeMap;

/*
 * Example of clone() method.
 */
public class TreeMapExample
{
    public static void main( String[] args )
    {

        TreeMap<Integer, String> treeMap = new TreeMap<Integer, String>();

        treeMap.put(1, "Cat");
        treeMap.put(2, "Dog");
        treeMap.put(4, "Apple");
        treeMap.put(3, "Ball");

        System.out.println("treeMap : " + treeMap + "\n");

        /*
         * Returns a shallow copy of this TreeMap instance. (The keys and values
         * themselves are not cloned.)
         */
        Object object = treeMap.clone();

        System.out
                .println("Object class name : " + object.getClass().getName());

        TreeMap<Integer, String> clonedTreeMap = (TreeMap<Integer, String>) object;

        System.out.println("cloned TreeMap : " + clonedTreeMap);

    }
}

Output

treeMap : {1=Cat, 2=Dog, 3=Ball, 4=Apple}

Object class name : java.util.TreeMap
cloned TreeMap : {1=Cat, 2=Dog, 3=Ball, 4=Apple}

To Download TreeMapDemoClone Project Click the below link
https://sites.google.com/site/javaee4321/java-collections/TreeMapDemoClone.zip?attredirects=0&d=1

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