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Java 实现通讯录管理系统教程

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(); //定义一个顶级容器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添加到顶级容器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,用户不能自由改变大小 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("", "", "", "", "", ""); }}

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文章来源:智云一二三科技

文章标题:Java 实现通讯录管理系统教程

文章地址:https://www.zhihuclub.com/14577.shtml

关于作者: 智云科技

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