Tutoriel sur la mise en œuvre Java du système de gestion de carnet d'adresses

L'exemple de cet article partage le code spécifique pour implémenter le système de gestion de carnet d'adresses en Java pour votre référence. Le contenu spécifique est le suivant

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Le processus de réalisation du projet :

1. Déterminer l'orientation générale en fonction des besoins

Analyse du module fonctionnel
3. design
5.coding
6. Test de code


Ce qui suit est le code source :

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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