java.util.IdentityHashMap.entrySet() 方法

package com.codingdict;

import java.util.*;

public class IdentityHashMapDemo {
   public static void main(String args[]) {

      // create identity hash map
      IdentityHashMap ihmap = new IdentityHashMap();

      // populate the map
      ihmap.put(1, "java");
      ihmap.put(2, "util");
      ihmap.put(3, "package");

      // create entry set from the map
      Set enset = ihmap.entrySet();

      System.out.println("Set view of the map: " + enset);
   }    
}