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电话薄管理java代码 java电话薄管理系统
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java制作一个手机电话薄，实现以下功能
简单实现，未加入判断为空等功能
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.HashMap;
import java.util.Map;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JTextField;
public class MyPhone extends JFrame implements ActionListener {
private JButton add, show, exit;
private JLabel person, number, result;
private JTextField perField, numField, getNum;
private Map map;
public MyPhone() {
super("通讯录");
person = new JLabel("联系人：");
number = new JLabel("手机号：");
result = new JLabel("查询结果：");
add = new JButton("添加");
show = new JButton("显示");
exit = new JButton("退出");
perField = new JTextField();
numField = new JTextField();
getNum = new JTextField();
map = new HashMap();
person.setBounds(10, 20, 100, 30);
perField.setBounds(70, 20, 180, 30);
number.setBounds(10, 80, 100, 30);
numField.setBounds(70, 80, 180, 30);
add.setBounds(10, 160, 80, 30);
show.setBounds(100, 160, 80, 30);
exit.setBounds(190, 160, 80, 30);
result.setBounds(10, 220, 100, 30);
getNum.setBounds(80, 220, 180, 30);
add.addActionListener(this);
show.addActionListener(this);
exit.addActionListener(this);
this.setLayout(null);
this.add(person);
this.add(perField);
this.add(number);
this.add(numField);
this.add(result);
this.add(getNum);
this.add(add);
this.add(show);
this.add(exit);
result.setVisible(false);
getNum.setVisible(false);
this.setSize(300, 300);
this.setDefaultCloseOperation(3);
this.setLocationRelativeTo(null);
this.setVisible(true);
}
public static void main(String[] args) {
new MyPhone();
}
public void actionPerformed(ActionEvent e) {
if (e.getSource() == add) {
map.put(perField.getText(), numField.getText());
perField.setText(null);
numField.setText(null);
JOptionPane.showMessageDialog(this, "添加成功！！！");
} else if (e.getSource() == show) {
result.setVisible(true);
getNum.setVisible(true);
getNum.setText(perField.getText() + "的手机号为：" + map.get(perField
.getText()));
} else if (e.getSource() == exit) {
System.exit(0);
}
}
}
相关问答
Q1: java通讯录全部代码！
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Scanner;
public class AddList {
private String filePath = "";
private String bakPath = "";
private String content = "";
Scanner sc = new Scanner(System.in);
public String readFile(){
content = "";
if (isNull(filePath)) {
System.out.println("文件存储路径：");
filePath = sc.nextLine();
}
File file = new File(filePath);
FileReader fr = null;
try {
if (file.exists()) {
fr = new FileReader(file);
char[] chars = new char[1024];
int n = 0;
while((n = fr.read(chars)) != -1){
String string = new String(chars, 0, n);
content = content + string;
}
} else {
System.out.println("文件不存在");
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if (fr != null) {
try {
fr.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return content;
}
public void writeFile(String path){
File file = new File(path);
FileOutputStream fos = null;
mkDirs(path);
try {
fos = new FileOutputStream(file);
BufferedOutputStream bos = new BufferedOutputStream(fos);
PrintWriter pw = new PrintWriter(bos, true);
pw.print(content);
pw.flush();
} catch (FileNotFoundException e) {
e.printStackTrace();
} finally {
if (fos != null) {
try {
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
public void writeFile(){
if (isNull(filePath)) {
System.out.println("文件存储路径：");
filePath = sc.nextLine();
}
File file = new File(filePath);
FileOutputStream fos = null;
mkDirs(filePath);
try {
fos = new FileOutputStream(file);
BufferedOutputStream bos = new BufferedOutputStream(fos);
PrintWriter pw = new PrintWriter(bos, true);
pw.print(content);
pw.flush();
} catch (FileNotFoundException e) {
e.printStackTrace();
} finally {
if (fos != null) {
try {
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
public void mkDirs(String filepath){
if (filepath.indexOf("\\") != -1) {
filepath = filepath.replaceAll("\\", "/");
}
int n = filepath.indexOf("//");
String path = filepath.substring(0, n) + "//";
filepath = filepath.substring(filepath.indexOf("//") + 1, filepath.length());
String[] files = filepath.split("/");
for (int i = 0; i files.length - 1; i++) {
path = path + files[i];
File file = new File(path);
if (!file.exists()) {
file.mkdir();
}
}
}
public void addImfor(){
System.out.println("--------增加记录---------");
String name = "";
String tel = "";
String email = "";
content = readFile();
while(true){
System.out.println("姓名：");
name = sc.next();
System.out.println("电话：");
tel = sc.next();
System.out.println("Email：");
email = sc.next();
content = content + name + "" + tel + "" + email +"==";
System.out.println("0、Exit 1、继续");
int i = sc.nextInt();
if (i == 0) {
break;
}
}
writeFile();
}
public void deleteImfor(){
System.out.println("---------删除记录---------");
String name = "";
String[] imfors = null;
content = readFile();
while(true){
System.out.println("你要删除的姓名是：");
name = sc.next();
if (content.indexOf(name) != -1) {
imfors = content.split("==");
for (int i = 0; i imfors.length; i++) {
if (imfors[i].indexOf(name) != -1) {
imfors[i] = "";
}
}
Q2: 用面向对象方法（java）设计并实现一个简单电话簿?!急！
建一个电话薄类
public class PhoneBook{
String name;
String phoneno;
String email;
//再把这些设置上get set方法
}
存的话，把他们add进一个List里
取的话，iterator遍历List，一个一个查名字
Q3: java题 拜托大神解答一下 要详细的 使用Map实现电话薄的功能： a)创建一
其它都好实现，就是升序比较麻烦，要重写hashcide方法，用自定义逻辑实现升序
Q4: 1. 应用泛型集合类List开发电话簿，实现电话簿的增加、删除、详细信息和统计操作。
1.新建一个应用程序
2.拖四个按钮
3双击按钮进去写代码
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
Liststring list=new Liststring();
int count = 0;
public Form1()
{
InitializeComponent();
}
private void btnAdd_Click(object sender, EventArgs e)
{
count++;
list.Add("联系人"+count);
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void btnView_Click(object sender, EventArgs e)
{
string s = "";
foreach (string item in list)
{
s += item+"\n";
}
MessageBox.Show(s);
}
private void button1_Click(object sender, EventArgs e)
{
MessageBox.Show(list.Count+"");
}
private void btnExit_Click(object sender, EventArgs e)
{
this.Dispose();
}
}
Q5: java通讯录管理系统设计代码怎么编译
java编写这个通讯录管理系统
java编写这个通讯录管理系统_Java如何实现通讯录管理系统
咕噜噜在芬兰
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Java如何实现通讯录管理系统
发布时间：2020-07-28 09:39:42
来源：亿速云
阅读：65
作者：Leah
这篇文章将为大家详细讲解有关Java如何实现通讯录管理系统，文章内容质量较高，因此小编分享给大家做个参考，希望大家阅读完这篇文章后对相关知识有一定的了解。
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 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
// 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 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
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
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
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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