public static void main(String[] args) {

Map<String, String> map = new HashMap<String, String>();

map.put("1", "张三");

map.put("2", "李四");

map.put("3", "王五");

/*方法一 ：迭代程序*/

System.out.println("方法一：");

Iterator iterator = map.entrySet().iterator();

while (iterator.hasNext()) {

Map.Entry<String, String> entry = (Entry<String, String>) iterator.next();

System.out.println("key:" + entry.getKey() + " value" + entry.getValue());

}

/*方法二*/

System.out.println("方法二：");

for (Map.Entry<String, String> m : map.entrySet()) {

System.out.println("key:" + m.getKey() + " value" + m.getValue());

}

}