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;

class Temp
{
    public int count;
    
    public Temp()
    {
        this.count = 123;
    }
    
    public void setCount(int count)
    {
        this.count = count;
    }
    
    public int getCount()
    {
        return this.count;
    }
}

public class Test
{
    public static void main(String args[]) throws Exception
    {
        HashMap<String, Temp> hashmap = new HashMap<String, Temp>();

        Temp t = new Temp();
        
        hashmap.put("fan", t);
        
        Set<Map.Entry<String, Temp>> set = hashmap.entrySet();
        Iterator<Map.Entry<String, Temp>> iterator = set.iterator();
        while (iterator.hasNext())
        {
            Entry<String, Temp> entry = iterator.next();
            String key = entry.getKey();
            Temp tt = entry.getValue();
            
            System.out.println("key: " + key + " value = " + tt.getCount());
        }
        
        hashmap.clear();
    }
}