package com.yenange.test3;
import java.util.HashMap; 
import java.util.Iterator; 
import java.util.Map;
public class TestMap { 
  public static void main(String[] args) { 
    Map map=new HashMap(); 
    map.put(1, 1); 
    map.put(5, 3); 
    map.put(2, 7); 
    map.put(6, 4); 
    Iterator iterator=map.keySet().iterator(); 
    while (iterator.hasNext()) { 
      int key=(Integer)iterator.next(); 
      System.out.println("键:"+key+"/t值:"+map.get(key)); 
    } 
  } 
}