Java Collection Tutorial - Java Vector.addAll(Collection <? extends E > c)








Syntax

Vector.addAll(Collection <? extends E > c) has the following syntax.

public boolean addAll(Collection <? extends E> c)

Example

In the following code shows how to use Vector.addAll(Collection <? extends E > c) method.

//ww w .  j a va2s  . c  om


import java.util.Vector;

public class Main {
   public static void main(String[] args) {
      // create two empty Vectors firstvec and secondvec      
      Vector<Integer>  firstvec = new Vector<Integer> (4);      
      Vector<Integer>  secondvec = new Vector<Integer> (4);
      
      // use add() method to add elements in the secondvec vector
      secondvec.add(5);
      secondvec.add(6);
      secondvec.add(7);
      secondvec.add(8);

      // use add() method to add elements in the firstvec vector
      firstvec.add(1);
      firstvec.add(2);
      firstvec.add(3);
      firstvec.add(4);
      
      // use addAll() method to add secondvec with firstvec vector
      firstvec.addAll(secondvec);

      // let us print all the elements available in vector firstvec vector
      System.out.println("Added numbers are :- "); 
      System.out.println(firstvec);
                 
   } 
}

The code above generates the following result.