Vector的使用

public void addElement(Object obj)    --  add() 

public Object elementAt(int index)    --  get()

public Enumeration elements()     --  Iterator iterator()
 

boolean hasMoreElements()       hasNext()

Object nextElement()          next()
 

import java.util.Enumeration;
import java.util.Vector;
public class VectorDemo {
  public static void main(String[] args) {
    // 创建集合对象
    Vector v = new Vector();

    // 添加功能
    v.addElement("hello");
    v.addElement("world");
    v.addElement("java");

    // 遍历
    for (int x = 0; x < v.size(); x++) {
      String s = (String) v.elementAt(x);
      System.out.println(s);
    }

    System.out.println("------------------");

    Enumeration en = v.elements(); // 返回的是实现类的对象
    while (en.hasMoreElements()) {
      String s = (String) en.nextElement();
      System.out.println(s);
    }
  }
}