個(gè)人通訊錄java代碼 個(gè)人通訊錄java代碼查詢

JAVA通訊錄 求一個(gè)JAVA編寫的通訊錄，基本的就可以。

具體方法如下：

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1、定義封裝一條記錄的實(shí)體類

2、根據(jù)實(shí)際系統(tǒng)容量，定義一個(gè)數(shù)組

3、完成系統(tǒng)中顯示全部記錄的邏輯

4、完成系統(tǒng)中添加一條記錄的邏輯

5、完成系統(tǒng)中刪除一條記錄的邏輯

6、完成系統(tǒng)中修改一條記錄的邏輯

7、全部代碼：

import java.util.Scanner;

class Contact {

String cellPhone;

String name;

}

public class Main {

private static void menu () {

System.out.println("************** 菜單 ******"

+ "************");

System.out.println(" 1.顯示全部通訊錄");

System.out.println(" 2.增加一條記錄");

System.out.println(" 3.刪除一條記錄");

System.out.println(" 4.修改一條記錄");

System.out.println(" 0.退出");

}

public static void main(String[] args) {

Scanner scn = new Scanner(System.in);

Contact[] contacts = new Contact[200];

int size = 0;

String cmd = "";

do {

menu();

System.out.print("請(qǐng)輸入你得選擇：(0-4)");

cmd = scn.nextLine();

if (cmd.equals("1")) {

if (size == 0)

System.out.println("系統(tǒng)當(dāng)前無記錄！");

else

for (int i = 0; i size; i++) {

System.out.println(contacts[i].name + ":"

+ contacts[i].cellPhone);

}

} else if (cmd.equals("2")) {

System.out.print("請(qǐng)輸入手機(jī)號(hào)：");

String cellphone = scn.nextLine();

System.out.print("請(qǐng)輸入姓名：");

String name = scn.nextLine();

Contact contact = new Contact();

contact.cellPhone = cellphone;

contact.name = name;

if (size contacts.length) {

contacts[size++] = contact;

System.out.println("添加成功！");

} else {

System.out.println("你最多只能添加" +

contacts.length + "條記錄");

}

} else if (cmd.equals("3")) {

System.out.print("請(qǐng)輸入要?jiǎng)h除的手機(jī)號(hào)：");

String cellphone = scn.nextLine();

int index = -1;

for (int i = 0; i size i contacts.length;

i++) {

if (contacts[i].cellPhone.equals(cellphone)) {

index = i;

break;

}

}

if (index == -1) {

System.out.println("該記錄不存在！");

} else {

for (int i = index; i size; i++) {

contacts[index] = contacts[index + 1];

}

contacts[size - 1] = null;

size--;

System.out.println("刪除成功！");

}

} else if (cmd.equals("4")) {

System.out.print("請(qǐng)輸入要修改的手機(jī)號(hào)：");

String cellphone = scn.nextLine();

int index = -1;

for (int i = 0; i size i contacts.length;

i++) {

if (contacts[i].cellPhone.equals(cellphone)) {

index = i;

break;

}

}

if (index == -1) {

System.out.println("該記錄不存在！");

} else {

System.out.print("請(qǐng)輸入姓名：");

String name = scn.nextLine();

contacts[index].name = name;

}

}

} while (!cmd.equals("0"));

System.out.println("退出成功！");

scn.close();

System.exit(0);

}

}

java個(gè)人通訊錄管理系統(tǒng)

import java.util.Arrays;

public class AddressBook

{

private int totalContacts; // 現(xiàn)在通訊錄中的總數(shù)

private int maxContacts; // 通訊錄的最大值

private Contact[] contacts; // 通訊錄的array

/**

* Constructor. 設(shè)定這個(gè)通訊錄最初的大小為10人上限.

*/

public AddressBook()

{

totalContacts = 0;

maxContacts = 10;

contacts = new Contact[totalContacts];

}

/**

* 得到一個(gè)聯(lián)系通過通訊錄中的名字

*

* @param name

* 要去得到的聯(lián)系人名字

* @return 這個(gè)聯(lián)系人, 沒有的話為null

*/

public Contact getContactByName(String name)

{

for(int i = 0; i totalContacts; i++)

{

Contact c = contacts[i];

if(name.equals(c.getName()))

{

return c;

}

}

return null;

}

/**

* 在這個(gè)contacts array的最后給這個(gè)通訊錄添加聯(lián)系人.

* 如果聯(lián)系人已經(jīng)存在且號(hào)碼參數(shù)不為0的話,聯(lián)系人的號(hào)碼會(huì)更新或者地址參數(shù)不是null的話,地址會(huì)更新。.

* 如果totalContacts達(dá)到maxContacts的值的話,在新的聯(lián)系人被添加前,這個(gè)contacts

* array的size會(huì)乘以雙倍并且maxContacts也乘以雙倍。

*

* @param contact

* 要加到這個(gè)通訊錄的聯(lián)系人

* @return true 如果這個(gè)聯(lián)系人添加成功, 否則 false;

*/

public boolean addContact(Contact contact)

{

for(int i = 0; i contacts.length; i++)

{

Contact ct = contacts[i];

if(ct.equals(contact))

{

if(ct.getNumber() != 0)

{

ct.setNumber(contact.getNumber());

}

if(null != ct.getAddress())

{

ct.setAddress(contact.getAddress());

}

return true;

}

}

if(totalContacts == maxContacts)

{

totalContacts *= 2;

maxContacts *= 2;

}

Contact[] cs = new Contact[totalContacts + 1];

System.arraycopy(contacts, 0, cs, 0, totalContacts);

cs[cs.length - 1] = contact;

contacts = cs;

totalContacts++;

return true;

}

/**

* 檢查是否聯(lián)系人已經(jīng)存在

*

* @param contact

* 要去檢查的contact

* @return true 如果這個(gè)聯(lián)系人被找到,否則false

*/

public boolean contains(Contact contact)

{

for(int i = 0; i totalContacts; i++)

{

if(contacts[i].equals(contact))

{

return true;

}

}

return false;

}

public void printAddressBook()

{

for(int i = 0; i totalContacts; i++)

{

System.out.println(contacts[i]);

}

}

/**

* 在AddressBook中還有一個(gè)方法!

* 從通訊錄中移除一個(gè)指定的聯(lián)系人,之后把其他的入口左移,這樣在聯(lián)系人間就沒有空隙了,

* For example:

* before - {C1, C2, C3, C4, C5, C6, C7, C8, C9, null} remove C6

* after - {C1, C2, C3, C4, C5, C7, C8, C9, null, null}

*

* @param contact

* 要移除的聯(lián)系人,

* @return true 如果這個(gè)聯(lián)系人被成功移除了,否則false；

*/

public boolean removeContact(Contact contact)

{

if(totalContacts == 0)

{

return false;

}

for(int i = 0; i totalContacts; i++)

{

Contact ct = contacts[i];

if(ct.equals(contact))

{

Contact[] cs = new Contact[totalContacts];

System.arraycopy(contacts, 0, cs, 0, i);

System.arraycopy(contacts, i + 1, cs, i, cs.length - i - 1);

contacts = cs;

totalContacts--;

return true;

}

}

return false;

}

@Override

public String toString()

{

return String.format("AddressBook [totalContacts=%s, maxContacts=%s, contacts=%s]", totalContacts, maxContacts,

Arrays.toString(contacts));

}

}

//--------------------------------------------------

public class Contact

{

private String name;

private long number;

private String address;

public String getName()

{

return name;

}

public void setName(String name)

{

this.name = name;

}

public long getNumber()

{

return number;

}

public void setNumber(long number)

{

this.number = number;

}

public String getAddress()

{

return address;

}

public void setAddress(String address)

{

this.address = address;

}

@Override

public boolean equals(Object obj)

{

if(!(obj instanceof Contact))

{

return false;

}

Contact contact = (Contact) obj;

if(this.getName().equals(contact.getName())

this.getAddress().equals(contact.getAddress())

this.getNumber() == contact.getNumber())

{

return true;

}

return false;

}

@Override

public String toString()

{

return String.format("Contact [name=%s, number=%s, address=%s]", name, number, address);

}

}

//---------------------------------------------

public class Test

{

public static void main(String[] args)

{

AddressBook ab = new AddressBook();

for(int i = 0; i 10; i++)

{

Contact contact = new Contact();

int x = i + 1;

contact.setName("C" + x);

contact.setAddress("china");

contact.setNumber(x);

ab.addContact(contact);

}

System.out.println(ab);

Contact c = new Contact();

c.setName("C6");

c.setAddress("china");

c.setNumber(6);

ab.removeContact(c);

System.out.println(ab);

}

}

java通訊錄管理系統(tǒng)設(shè)計(jì)代碼怎么編譯

java編寫這個(gè)通訊錄管理系統(tǒng)

java編寫這個(gè)通訊錄管理系統(tǒng)_Java如何實(shí)現(xiàn)通訊錄管理系統(tǒng)

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Java如何實(shí)現(xiàn)通訊錄管理系統(tǒng)

發(fā)布時(shí)間：2020-07-28 09:39:42

來源：億速云

閱讀：65

作者：Leah

這篇文章將為大家詳細(xì)講解有關(guān)Java如何實(shí)現(xiàn)通訊錄管理系統(tǒng)，文章內(nèi)容質(zhì)量較高，因此小編分享給大家做個(gè)參考，希望大家閱讀完這篇文章后對(duì)相關(guān)知識(shí)有一定的了解。

本文實(shí)例為大家分享了java實(shí)現(xiàn)通訊錄管理系統(tǒng)的具體代碼，供大家參考，具體內(nèi)容如下

完成項(xiàng)目的流程：

1.根據(jù)需求，確定大體方向

2.功能模塊分析

3.界面實(shí)現(xiàn)

4.功能模塊設(shè)計(jì)

5.coding

6.代碼測(cè)試

下面是源代碼：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();

//構(gòu)造函數(shù)

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 "編號(hào)："+id+" 姓名："+name+" 性別："+sex+" 通訊地址："+address+" 郵箱地址："+e_mail+" 電話："+phoneNumber;

}

/**

* 添加功能

**/

public static void addFunction(){//添加功能

Infro infro = new Infro("","","","","","");

System.out.println("請(qǐng)輸入添加的數(shù)據(jù)：");

Scanner in = new Scanner(System.in);

System.out.println("輸入編號(hào)：");

infro.id = in.next();

System.out.println("輸入姓名：");

infro.name = in.next();

System.out.println("輸入性別：");

infro.sex = in.next();

System.out.println("輸入通訊地址：");

infro.address = in.next();

System.

out.println("輸入郵箱地址：");

infro.e_mail = in.next();

System.out.println("輸入電話：");

infro.phoneNumber = in.next();

list.add(index,infro);

index++;

if(list.isEmpty()){

System.out.println("數(shù)據(jù)添加失敗啦");

}else{

System.out.println("數(shù)據(jù)添加成功啦");

len++;//list集合長度加一

// System.out.println(list.get(0).toString());

}

}

// public static void deleteFunction(){//刪除功能

// System.out.println("輸入要?jiǎng)h除的聯(lián)系人的編號(hào)");

// 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 --;

// }

// }

// }

/**

* 刪除功能

**/

public static void deleteFunction(){

System.out.println("輸入要?jiǎng)h除的聯(lián)系人的編號(hào)");

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;//一定要加這個(gè)，否則當(dāng)做了刪除操作再做添加操作的時(shí)候會(huì)出現(xiàn)異常(類似于指針，棧)

System.out.println("刪除完畢"+"此時(shí)通訊錄記錄條數(shù)為：" + --len);

}

}

}

/**

* 修改功能

**/

public static void reditFunction(){

System.out.println("輸入要修改的通訊錄的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("輸入修改后的姓名：");

String name_1 = in_r.next();

list.get(a).name = name_1;

System.out.println("輸入修改后的性別：");

String sex_1 = in_r.next();

list.get(a).sex = sex_1;

System.out.println("輸入修改后的通訊地址：");

String address_1 = in_r.next();

list.get(a).address = address_1;

System.out.println("輸入修改后的郵箱地址：");

String e_mail_1 = in_r.next();

list.get(a).e_mail = e_mail_1;

System.out.println("輸入修改后的電話：");

String phoneNumber_1 = in_r.next();

list.get(a).phoneNumber = phoneNumber_1;

System.out.println("數(shù)據(jù)修改完畢");

}

}

}

/**

* 查詢功能

**/

public static void searchFunction() throws Exception{//查詢功能

System.out.println("請(qǐng)輸入要查詢的姓名：");

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());

}

}

}

/**

* 顯示功能

**/

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("通訊錄管理.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("成功寫入一行數(shù)據(jù)到 通訊錄管理.txt 中");

}

writer.close();//關(guān)閉寫入流，釋放資源

}

/**

* 讀取功能

**/

public static void readFunction() throws IOException{

FileReader reader = new FileReader("通訊錄管理.txt");

BufferedReader br = new BufferedReader(reader);

String str;

while((str = br.readLine()) != null){//每次讀取一行文本，判斷是否到達(dá)文件尾

System.out.println(str);

}

br.close();

}

}

public class Demo extends JFrame {

/**

* 界面設(shè)計(jì)

**/

public Demo(){

Container c = getContentPane(); //定義一個(gè)頂級(jí)容器c

JPanel jp = new JPanel(); //新建JPanel面板--jp

JButton button1 = new JButton("新建聯(lián)系人");

JButton button2 = new JButton("刪除聯(lián)系人");

JButton button3 = new JButton("編輯聯(lián)系人");

JButton button4 = new JButton("查找聯(lián)系人");

JButton button5 = new JButton("顯示所有聯(lián)系人");

JButton button6 = new JButton("保存聯(lián)系人到本地");

JButton button7 = new JButton("讀取本地聯(lián)系人");

jp.setLayout(new GridLayout(2,4,5,5));//新建網(wǎng)格布局管理器(行數(shù)，列數(shù)，組件間的水平垂直間距)

jp.add(button1);

jp.add(button2);

jp.add(button3);

jp.add(button4);

jp.add(button5);

jp.add(button6);

jp.add(button7);

c.add(jp);//將JPanel面板jp添加到頂級(jí)容器c中

setSize(600,500);

setTitle("*通 訊 錄 管 理 系 統(tǒng)*");

setVisible(true);

setResizable(false);//窗體大小由程序員決定，用戶不能自由改變大小

setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

/**

*按鍵響應(yīng)

*

**/

button1.addActionListener(new ActionListener(){//添加功能實(shí)現(xiàn)

public void actionPerformed(ActionEvent arg0){

Infro.addFunction();

}

});

button2.addActionListener(new ActionListener(){//刪除功能實(shí)現(xiàn)

public void actionPerformed(ActionEvent arg0){

Infro.deleteFunction();

}

});

button3.addActionListener(new ActionListener(){//修改功能實(shí)現(xiàn)

public void actionPerformed(ActionEvent arg0){

Infro.reditFunction();

}

});

button4.addActionListener(new ActionListener(){//查詢功能實(shí)現(xiàn)

public void actionPerformed(ActionEvent arg0){

try {

Infro.searchFunction();

} catch (Exception e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

});

button5.addActionListener(new ActionListener(){//顯示功能實(shí)現(xiàn)

public void actionPerformed(ActionEvent arg0){

Infro.showFunction();

}

});

button6.addActionListener(new ActionListener(){//保存功能實(shí)現(xiàn)

public void actionPerformed(ActionEvent arg0){

try {

Infro.writeFunction();

} catch (IOException e) {

e.printStackTrace();

}

}

});

button7.addActionListener(new ActionListener(){//讀取功能實(shí)現(xiàn)

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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java通訊錄全部代碼！

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("文件存儲(chǔ)路徑：");

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("文件存儲(chǔ)路徑：");

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("http://");

String path = filepath.substring(0, n) + "http://";

filepath = filepath.substring(filepath.indexOf("http://") + 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("--------增加記錄---------");

String name = "";

String tel = "";

String email = "";

content = readFile();

while(true){

System.out.println("姓名：");

name = sc.next();

System.out.println("電話：");

tel = sc.next();

System.out.println("Email：");

email = sc.next();

content = content + name + "" + tel + "" + email +"==";

System.out.println("0、Exit 1、繼續(xù)");

int i = sc.nextInt();

if (i == 0) {

break;

}

}

writeFile();

}

public void deleteImfor(){

System.out.println("---------刪除記錄---------");

String name = "";

String[] imfors = null;

content = readFile();

while(true){

System.out.println("你要?jiǎng)h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] = "";

}

}

實(shí)現(xiàn)一個(gè)小型通訊錄。Java

Friend類：public class Friend {

/*

* 姓名

*/

private String name;

/*

* 電話

*/

private String telephone;

/*

* 郵箱

*/

private String email;

/*

* 公司

*/

private String company; public String getName() {

return name;

} public void setName(String name) {

this.name = name;

} public String getTelephone() {

return telephone;

} public void setTelephone(String telephone) {

this.telephone = telephone;

} public String getEmail() {

return email;

} public void setEmail(String email) {

this.email = email;

} public String getCompany() {

return company;

} public void setCompany(String company) {

this.company = company;

} public String toString() {

StringBuffer str = new StringBuffer(); str.append("姓名：" + name).append("\n");

str.append("電話：" + telephone).append("\n");

str.append("郵箱：" + email).append("\n");

str.append("公司：" + company).append("\n");

str.append("-----------------------------------------\n");

return str.toString();

}

}AddFriend類：public class AddFriend { /**

* 主方法 程序的入口

*/

public static void main(String[] args) {

ListFriend friendList = new ArrayListFriend();

char isGo = 'Y';

int i = 0;

do {

Friend friend = new Friend();

System.out.println("請(qǐng)輸入第" + (i + 1) + "位朋友的姓名：");

InputStreamReader reader = new InputStreamReader(System.in);

String str = "";

try {

str = (new BufferedReader(reader)).readLine();

} catch (IOException e) {

e.printStackTrace();

}

friend.setName(str); System.out.println("請(qǐng)輸入第" + (i + 1) + "位朋友的電話："); try {

str = (new BufferedReader(reader)).readLine();

} catch (IOException e) {

e.printStackTrace();

}

if (str.matches("\\d*") str.length() == 11) {// 判斷用戶輸入的電話是否符合標(biāo)準(zhǔn)

friend.setTelephone(str);

} else {

System.out.println("電話號(hào)碼輸入有誤，請(qǐng)重新輸入！");

continue;

} System.out.println("請(qǐng)輸入第" + (i + 1) + "位朋友的郵箱："); try {

str = (new BufferedReader(reader)).readLine();

} catch (IOException e) {

e.printStackTrace();

}

friend.setEmail(str); System.out.println("請(qǐng)輸入第" + (i + 1) + "位朋友的公司："); try {

str = (new BufferedReader(reader)).readLine();

} catch (IOException e) {

e.printStackTrace();

}

friend.setCompany(str); friendList.add(friend); i++; System.out.println("是否繼續(xù)添加？(Y/N):");

String go = "";

try {

go = (new BufferedReader(reader)).readLine();

} catch (IOException e) {

e.printStackTrace();

}

isGo = go.charAt(0);

} while (isGo == 'Y' || isGo == 'y'); for (int j = 0; j friendList.size(); j++) {

System.out.println(friendList.get(j).toString());

}

}

}

新聞名稱：個(gè)人通訊錄java代碼 個(gè)人通訊錄java代碼查詢
文章來源：http://muchs.cn/article28/hheijp.html

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