map04.java

java netbeans 学习程序合集

/*
 * Map04.java
 *
 * Created on 2008年2月25日, 下午9:53
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package org.Adam;

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

/**
 *
 * @author Administrator
 */
public class Map04 {
    
    /** Creates a new instance of Map04 */
    public static void main(String[] args) {
        PersonSearch04 pp=new PersonSearch04();
        pp.add("one","001","Tom");
        pp.add("two","002","Jane");
        pp.add("one","002","Adam");
        pp.add("two","001","aaa");
        System.out.println(pp.get("one","001"));
    }
    
}
class PersonSearch04
{
    private Map departMap;
    public PersonSearch04()
    {
        super();
        departMap=new HashMap();
    }
    public void add(String departName,String number,String personName){
        Map personMap=(Map)departMap.get(departName);
        if(personMap==null){
            personMap=new HashMap();
            departMap.put(departName,personMap);
        }
        personMap.put(number,personMap);
    }
    public String get(String departName,String number){
        Map personMap=(Map)departMap.get(departName);
        if(personMap==null){
            return null;
        }
        return (String) personMap.get(number);
    }
}