HashMap的应用

HashMap <String,String> hsMap=new HashMap<String,String>

hsMap.put("1","value")

Set<string> set=hsMap.keySet();//获取键值

Iterator <string> it=set.iterator();

while(it.hasNext()){

String str=it.next();

}
Collection<String> coll=hsMap.values();//获取数值

Iterator <String> it2=coll.iterator();

while(it2.hasNext()){

     String str=it2.next();

}