package c12;
import java.util.*; 

class Int { 
   private int i; 
   public Int(int ii) { i = ii; } 
   public void increment() { i++; } 
   public String toString() { 
       return Integer.toString(i); 
   } 
} 

public class Cloning { 
   public static void main(String[] args) { 
       Vector v = new Vector(); 
       for(int i = 0; i < 10; i++ ) 
          v.addElement(new Int(i)); 
       System.out.println("v: " + v); 
       Vector v2 = (Vector)v.clone(); 
      //Increment all v2's elements: 
      for(Enumeration e = v2.elements(); 
            e.hasMoreElements(); ) 
          ((Int)e.nextElement()).increment(); 
        //See if it changed v's elements: 
       System.out.println("v2:"+v2);
       System.out.println("v:"+v);
      if (v2!=v)
          System.out.println("This is different");
      // System.out.println("v: " + v); 
   } 
}