用hashmap举例: java.util.HashMap h= new java.util.HashMap();
h.put("1","one");
h.put("2","two");
h.put("3","three");
java.util.Iterator keySet = h.keySet().iterator();
String s=null;
while(keySet.hasNext()){
Object key = keySet.next();
s= (String)h.get(key);
System.out.println(s);
}
h.put("1","one");
h.put("2","two");
h.put("3","three");
java.util.Iterator keySet = h.keySet().iterator();
String s=null;
while(keySet.hasNext()){
Object key = keySet.next();
s= (String)h.get(key);
System.out.println(s);
}
解决方案 »
免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货