java实现通讯录管理系统

本文实例为大家分享了java实现通讯录管理系统的具体代码，供大家参考，具体内容如下

完成项目的流程：

1.根据需求，确定大体方向
2.功能模块分析
3.界面实现
4.功能模块设计
5.coding
6.代码测试

下面是源代码：

import java.awt.container;
import java.awt.gridlayout;
import java.awt.event.actionevent;
import java.awt.event.actionlistener;
import java.io.bufferedreader;
import java.io.filenotfoundexception;
import java.io.filereader;
import java.io.filewriter;
import java.io.ioexception;
import java.util.arraylist;
import java.util.scanner;
import java.util.concurrent.synchronousqueue;

import javax.swing.jbutton;
import javax.swing.jframe;
import javax.swing.jpanel;
import javax.swing.windowconstants;
import javax.swing.text.html.htmldocument.iterator;


class infro{
 public string id;
 public string name;
 public string sex;
 public string address;
 public string e_mail;
 public string phonenumber;
 static int index = 0;
 static arraylist<infro> list = new arraylist();
 static int len = list.size();
 //构造函数
 public infro(string id,string name,string sex,string address,string e_mail,string phonenumber){
  this.id = id;
  this.name = name;
  this.sex = sex;
  this.address = address;
  this.e_mail = e_mail;
  this.phonenumber = phonenumber;
 }
 public string tostring(){
  return "编号："+id+" 姓名："+name+" 性别："+sex+" 通讯地址："+address+" 邮箱地址："+e_mail+" 电话："+phonenumber;
 }

 /*
       * 添加功能
  * */
 public static void addfunction(){//添加功能
  infro infro = new infro("","","","","","");
  system.out.println("请输入添加的数据：");
  scanner in = new scanner(system.in);
  system.out.println("输入编号：");
  infro.id = in.next();
  system.out.println("输入姓名：");
  infro.name = in.next();
  system.out.println("输入性别：");
  infro.sex = in.next();
  system.out.println("输入通讯地址：");
  infro.address = in.next();
  system.
  out.println("输入邮箱地址：");
  infro.e_mail = in.next();
  system.out.println("输入电话：");
  infro.phonenumber = in.next();
  list.add(index,infro);
  index++;
  if(list.isempty()){
   system.out.println("数据添加失败啦");
  }else{
   system.out.println("数据添加成功啦");
   len++;//list集合长度加一
//   system.out.println(list.get(0).tostring());
  }

 }
// public static void deletefunction(){//删除功能
//  system.out.println("输入要删除的联系人的编号");
//  scanner in_2 = new scanner(system.in);
//  string d1 = in_2.nextline();
//  for(int a= 0; a<len;a++){
//   if(d1.equals(list.get(a).id)){
//    list.remove(list.get(a));
//    len --;  
//   }
//  }
// }
 /*
       * 删除功能
  * */
  public static void deletefunction(){
   system.out.println("输入要删除的联系人的编号");
   scanner in_2 = new scanner(system.in);
   string d1 = in_2.nextline();
   java.util.iterator<infro> it = list.iterator();
   while (it.hasnext()){
    infro infro = it.next();
    if (infro.id.equals(d1)){
     it.remove();
     --index;//一定要加这个，否则当做了删除操作再做添加操作的时候会出现异常（类似于指针，栈）
     system.out.println("删除完毕"+"此时通讯录记录条数为：" + --len);
    }
   }
  }
  /*
  *      修改功能
  * */
  public static void reditfunction(){
   system.out.println("输入要修改的通讯录的id");
   scanner in_r = new scanner(system.in);
   string r1 = in_r.nextline();
   for(int a = 0; a < len;a++){
    if(r1.equals(list.get(a).id)){
     system.out.println("输入修改后的姓名：");
     string name_1 = in_r.next();
     list.get(a).name = name_1;
     system.out.println("输入修改后的性别：");
     string sex_1 = in_r.next();
     list.get(a).sex = sex_1;
     system.out.println("输入修改后的通讯地址：");
     string address_1 = in_r.next();
     list.get(a).address = address_1;
     system.out.println("输入修改后的邮箱地址：");
     string e_mail_1 = in_r.next();
     list.get(a).e_mail = e_mail_1;
     system.out.println("输入修改后的电话：");
     string phonenumber_1 = in_r.next();
     list.get(a).phonenumber = phonenumber_1;
     system.out.println("数据修改完毕");
    }
   }
  }
  /*
        * 查询功能
  * */
 public static void searchfunction() throws exception{//查询功能
  system.out.println("请输入要查询的姓名：");
  scanner in_1 = new scanner(system.in);
  string s1=in_1.nextline();
  for(int a= 0; a<len;a++){//切记，，这里不能用a<=list.seze(),否则会数组越界异常
   if(s1.equals(list.get(a).name)){
    system.out.println(list.get(a).tostring());
   }
  }
 }

 /*
       * 显示功能
  * */
 public static void showfunction(){
  for(int i = 0 ;i<len;i++){
   system.out.println(list.get(i).tostring());
  }
 }
 /*
  *      保存功能
  * */
 public static void writefunction() throws ioexception{
  filewriter writer = new filewriter("通讯录管理.txt");
  for(int i = 0 ;i<len;i++){
   string []strwriter = new string[len];
   strwriter[i]=list.get(i).tostring();
   writer.write(strwriter[i]);
   writer.write("\r\n");
   system.out.println("成功写入一行数据到 通讯录管理.txt 中");
  }
  writer.close();//关闭写入流，释放资源
 }
 /*
  *      读取功能
  * */
 public static void readfunction() throws ioexception{
  filereader reader = new filereader("通讯录管理.txt");
  bufferedreader br = new bufferedreader(reader);
  string str;
  while((str = br.readline()) != null){//每次读取一行文本，判断是否到达文件尾
   system.out.println(str);
  }
  br.close();
 }
}


public class demo extends jframe {

 /*
  * 界面设计
  * */
 public demo(){
  container c = getcontentpane(); //定义一个*容器c
  jpanel jp = new jpanel(); //新建jpanel面板--jp
  jbutton button1 = new jbutton("新建联系人");
  jbutton button2 = new jbutton("删除联系人");
  jbutton button3 = new jbutton("编辑联系人");
  jbutton button4 = new jbutton("查找联系人");
  jbutton button5 = new jbutton("显示所有联系人");
  jbutton button6 = new jbutton("保存联系人到本地");
  jbutton button7 = new jbutton("读取本地联系人");
  jp.setlayout(new gridlayout(2,4,5,5));//新建网格布局管理器（行数，列数，组件间的水平垂直间距）
  jp.add(button1);
  jp.add(button2);
  jp.add(button3);
  jp.add(button4);
  jp.add(button5);
  jp.add(button6);
  jp.add(button7);
  c.add(jp);//将jpanel面板jp添加到*容器c中
  setsize(600,500);
  settitle("*通 讯 录 管 理 系 统*");
  setvisible(true);
  setresizable(false);//窗体大小由程序员决定，用户不能*改变大小
  setdefaultcloseoperation(windowconstants.exit_on_close);


  /*
   *按键响应
   * 
   * */
  button1.addactionlistener(new actionlistener(){//添加功能实现
   public void actionperformed(actionevent arg0){
    infro.addfunction();
   }
  });
  button2.addactionlistener(new actionlistener(){//删除功能实现
   public void actionperformed(actionevent arg0){
    infro.deletefunction();
   }
  });
  button3.addactionlistener(new actionlistener(){//修改功能实现
   public void actionperformed(actionevent arg0){
    infro.reditfunction();
   }
  });
  button4.addactionlistener(new actionlistener(){//查询功能实现
   public void actionperformed(actionevent arg0){
    try {
     infro.searchfunction();
    } catch (exception e) {
     // todo auto-generated catch block
     e.printstacktrace();
    }
   }
  });
  button5.addactionlistener(new actionlistener(){//显示功能实现
   public void actionperformed(actionevent arg0){
    infro.showfunction();
   }
  });
  button6.addactionlistener(new actionlistener(){//保存功能实现
   public void actionperformed(actionevent arg0){
    try {
     infro.writefunction();
    } catch (ioexception e) {
     e.printstacktrace();
    }
   }
  });
  button7.addactionlistener(new actionlistener(){//读取功能实现
   public void actionperformed(actionevent arg0){
    try {
     infro.readfunction();
    } catch (ioexception e) {
     // todo auto-generated catch block
     e.printstacktrace();
    }
   }
  });
 }

 public static void main(string[] args) {
  // todo auto-generated method stub
  new demo();
  infro a = new infro("", "", "", "", "", "");
 }

}

ps:在用list集合的时候，遇到了一些小问题，这些小问题我在代码里有注释，希望以后不要再犯这种问题。

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。