Map类

package com.hanqi;

import java.util.*;

public class test07 {

public static void main(String[] args) {
Map<String,String> Emp=new HashMap<String,String>();
Emp.put("005", "A");
Emp.put("004", "B");
Emp.put("003", "C");
Emp.put("002", "D");

Emp.remove("005");

}

}