hashmap遍历

package com;

import java.util.Collections;
import java.util.List;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import java.util.Map.Entry;

public class Test
{
    public static void main(String args[]) throws Exception
    {
        HashMap<String, String> hashmap = new HashMap<String, String>();
        
        hashmap.put("fan", "fanyun");
        hashmap.put("hao", "haoyuan");
        
        Set<Map.Entry<String, String>> set = hashmap.entrySet();
        Iterator iterator = set.iterator();
        while (iterator.hasNext())
        {
            Entry entry = (Entry) iterator.next();
            String key = (String) entry.getKey();
            String value = (String) entry.getValue();
            
            System.out.println("key: " + key + " value = " + value);
        }
        
        hashmap.clear();
    }
}