java Map的简单运用

package test;

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

public class MapTest {

	public   void   mapTest(){
		
		Map  map  =  new HashMap();
	   //往map里添加元素，无序存储起来
		map.put("I", "我");
		map.put("am","是");
		map.put("Chinese","中国人");
		
	   //通过key取值
	   System.out.print(map.get("I"));
	   System.out.print(map.get("am"));
	   System.out.print(map.get("Chinese"));
	} 
	
	
	public static void main(String[] args) {
		//测试
		MapTest   mt   = new  MapTest();
		mt.mapTest();

	}

}