vectortest.java

以上源码都能完成相应功能！是基础编程者学习着的好资料！

import java.util.*;

public class VectorTest extends Vector
{
	public VectorTest()
	{
		super(2,1);
		}
	public void addInteger(int integer)
	{
		addElement(new Integer(integer));	
		}
	public void addString(String str)
	{
		addElement(str);
		}
	public void displayVector()
	{
		Object object;
		int length=size();
		System.out.println("Number of Vector elements: "+length);
		System.out.println("They are: ");
		for(int i=0;i<length;i++)
		{
			object=elementAt(i);
			System.out.println(object.toString());
			}
		}		
	public  static void main(String args[])
	{
		VectorTest vector=new VectorTest();
		int num=100;
		int n2=200;
		String string=new String("I love Java");
		vector.addInteger(num);
		vector.addString("I am a teacher!!");
		vector.addString(string);
		
		vector.insertElementAt(new Integer(n2),2);
		vector.displayVector();	
		}
	}