I need help an urgent help in vectors

Question

I am comparing the elements of one vector with everyother element of another vector.If a match is found I need to remove the element from the second vector and should obtain the remaining elements of the second vector.Could u please help in this!
ie)
Vector v1=new Vector();
Vector v2=new Vector();
v1.addElement("apple");
v1.addElement("grapes");
v1.addElement("mango");
v1.addElement("orange");
v1.addElement("pineapple");
v1.addElement("banana");
v2.addElement("cherry");
v2.addElement("berry");
v2.addElement("papaya");
v2.addElement("mango")
v2.addElement("apple");
here in this example , if i compare the vectors (v1,v2), the elements in v2(mango and apple) are contained in v1 also.so i need to remove the elements from vector v2 which are common and need to fetch the remaining elements in the v2 vector.so the resulting v2 vector should contain only 'cherry','berry','papaya',and i need to display the content of v2 vector after the removal of similar elements .could u please help me how to do this!!!!!.

Answer 1

Much easier way, use Vector.removeAll(Collection c).
As class Vector is an instance of interface Collection, you can pass in a vector.
i.e.
import java.util.*;
public class tester
     public static void main(String[] args)
          tester.refineList();
     public static void refineList()
          Vector v1=new Vector();
          Vector v2=new Vector();
          v1.addElement("apple");
          v1.addElement("grapes");
          v1.addElement("mango");
          v1.addElement("orange");
          v1.addElement("pineapple");
          v1.addElement("banana");
          v2.addElement("cherry");
          v2.addElement("berry");
          v2.addElement("papaya");
          v2.addElement("mango");
          v2.addElement("apple");
          v2.removeAll(v1);
          for(int a = 0; a < v2.size(); a++)
               System.out.println(v2.elementAt(a).toString());
}Hope this helps
D