java.util.Map.Entry接口
2013-07-30 16:28
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java.util.Map.Entry接口主要就是在遍历map的时候用到,给你个例子: package test; import java.util.*; import java.util.Map.Entry; public class B { public static void main(String[] args) { Map<Integer,Integer> mm = new HashMap<Integer,Integer>(); for(int i=0;i<10;i++) { mm.put(i, i); } for( Entry<Integer, Integer> e : mm.entrySet()) { System.out.println("key:"+e.getKey()); System.out.println("value:"+e.getValue()); } for( Iterator<Entry<Integer, Integer>> i = mm.entrySet().iterator();i.hasNext(); ) { Entry<Integer, Integer> e = i.next(); System.out.println("key:"+e.getKey()); System.out.println("value:"+e.getValue()); } } }
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