java.util.Vector.copyInto() 方法

package com.codingdict;

import java.util.Vector;

public class VectorDemo {
   public static void main(String[] args) {

      // create an empty Vector vec with an initial capacity of 4      
      Vector<Integer> vec = new Vector<Integer>(4);

      Integer anArray[] = new Integer[4];

      anArray[0] = 100;
      anArray[1] = 100;
      anArray[2] = 100;
      anArray[3] = 100;

      // use add() method to add elements in the vector
      vec.add(4);
      vec.add(3);
      vec.add(2);
      vec.add(1);

      // numbers in the array before copy
      System.out.println("Numbers in the array before copy");
      for (Integer number : anArray) {         
         System.out.println("Number = " + number);
      }

      // copy into the array
      vec.copyInto(anArray);

      // numbers in the array after copy
      System.out.println("Numbers in the array after copy");

      for (Integer number : anArray) {         
         System.out.println("Number = " + number);
      }
   }
}