Java Collection Tutorial - Java TreeMap.clone()

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Syntax

TreeMap.clone() has the following syntax.

public Object clone()

Example

In the following code shows how to use TreeMap.clone() method.

/*w  w  w .ja v a2 s  .  c  o m*/
import java.util.TreeMap;

public class Main {
   public static void main(String[] args) {
      
      TreeMap<Integer, String>  treemap = new TreeMap<Integer, String> ();
      TreeMap<Integer, String>  treemapclone = new TreeMap<Integer, String> ();
      
      // populating tree map
      treemap.put(2, "two");
      treemap.put(1, "one");
      treemap.put(3, "three");
      treemap.put(6, "six");
      treemap.put(5, "from java2s.com");
      
      // cloning tree map
      System.out.println("Cloning tree map");
      treemapclone=(TreeMap)treemap.clone();
      
      System.out.println("Original map: "+ treemap);
      System.out.println("Cloned map: "+ treemapclone);
   }    
}

The code above generates the following result.

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