HashMap和Hashtable的遍历

import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

public class Test01 {
	
	public static void main(String args[]){
		Map map=new HashMap();
		map.put("abin", "is o boy");
		map.put("xia", "is o girl");
		for(Iterator it=map.entrySet().iterator();it.hasNext();){
			Map.Entry entry=(Map.Entry)it.next();
			System.out.println("entry.getkey()="+entry.getKey());
			System.out.println("entry.getValue()="+entry.getValue());
		}
		
	}

import java.util.Enumeration;
import java.util.Hashtable;

public class test02 {
	public static void main(String args[]){
		Hashtable<String,String> ht=new Hashtable<String,String>();
		ht.put("a", "aaa");
		ht.put("b", "bbb");
		Enumeration  er=ht.keys();
		while(er.hasMoreElements()){
			String key=(String)er.nextElement();
			System.out.println("key="+key+"   value="+ht.get(key));
		}
		
		
	}

}