Here you can find the source of copyVector(Vector V)
public static Vector copyVector(Vector V)
//package com.java2s; /*//from w w w . j a v a 2s . c o m Copyright 2001-2015 Bo Zimmerman Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ import java.util.*; public class Main { public static Vector copyVector(Vector V) { final Vector V2 = new Vector(); for (int v = 0; v < V.size(); v++) { final Object h = V.elementAt(v); if (h instanceof Vector) V2.addElement(copyVector((Vector) h)); else V2.addElement(h); } return V2; } }