请问怎样遍历TreeMap

Question

请问怎样遍历TreeMap

Answer 1

entrySet?
里面的对象是Map.Entry

Answer 2

Iterator it = map.entrySet().iterator();
while(it.hasNext())
{
     //里面写你想做的事情
}

Answer 3

TreeMap map = new TreeMap();
map.put("value_0", new Integer(0));
map.put("value_1", new Integer(1));
map.put("value_2", new Integer(2));
Iterator it=map.values().iterator();
while(it.hasNext()){
Integer val=(Integer)it.next();
System.out.println(val.toString());
}

Answer 4

TreeMap map = new TreeMap();
map.put("value_0", new Integer(0));
map.put("value_1", new Integer(1));
map.put("value_2", new Integer(2));
Iterator it=map.keySet().iterator();
while(it.hasNext()){
String key=(String)it.next();
Integer val=(Integer)map.get(key);
System.out.println(key.toString());
System.out.println(val.toString());
}

Answer 5

Iterator its =  treeMap.keySet().iterator(); 
      int num=0;
      while (its.hasNext()) {
          Object objs = its.next();
          clfs[num]=objs+"("+list.get(objs).toString()+")";
          num++;
//          System.out.println("------>"+objs + ": " + list.get(objs));  
      }