遍历MAP类型的里的内容

Iterator it = map.entrySet().iterator();
while(it.hasNext()) {
  Map.Entry entry = (Map.Entry)it.next();
  Object key = entry.getKey();
  Object value = entry.getValue();
}

Iterator   itor   =   mm.values().iterator(); 
while(itor.hasNext()){ 
itor.next(); 
}

for (Iterator iter = map.entrySet().iterator(); iter.hasNext();) {
            Map.Entry entry = (Map.Entry) iter.next();
            Object key = entry.getKey();
            Object value = entry.getValue();
            // ...
}
 
 
JDK   1.5   以上，并且还使用了泛型   Map   的话，可以使用   foreach   来遍历。 


     
     
     
     
 
      

        Java code 
      
 
      
 
       
        
        
        
        

         
         
         
         
         import
         
         
         
          java.util.LinkedHashMap; 
         
         
         
         import
         
         
         
          java.util.Map; 
         
         
         
         public
         
         
         
          
         
         
         
         class
         
         
         
          Test { 
         
         
         
         public
         
         
         
          
         
         
         
         static
         
         
         
          
         
         
         
         void
         
         
         
          main(String args[]) { Map
         
         
         
         <
         
         
         
         String, String
         
         
         
         >
         
         
         
          map 
         
         
         
         =
         
         
         
          
         
         
         
         new
         
         
         
          LinkedHashMap
         
         
         
         <
         
         
         
         String, String
         
         
         
         >
         
         
         
         (); map.put(
         
         
         
         "
         
         
         
         1
         
         
         
         "
         
         
         
         , 
         
         
         
         "
         
         
         
         a
         
         
         
         "
         
         
         
         ); map.put(
         
         
         
         "
         
         
         
         2
         
         
         
         "
         
         
         
         , 
         
         
         
         "
         
         
         
         b
         
         
         
         "
         
         
         
         ); 
         
         
         
         for
         
         
         
         (Map.Entry
         
         
         
         <
         
         
         
         String, String
         
         
         
         >
         
         
         
          entry : map.entrySet()) { System.out.println(entry.getKey() 
         
         
         
         +
         
         
         
          
         
         
         
         "
         
         
         
          --> 
         
         
         
         "
         
         
         
          
         
         
         
         +
         
         
         
          entry.getValue()); } } }