个人收支管理系统代码与运行结果

1、 界面：package 个人收支管理系统;import java.util.Scanner;public class Test public static void main(String args) Manager b = new Manager();boolean bRun = true;while (bRun) System.out.println(*);System.out.println(*个人收支管理 *);System.out.println( );System.out.println(*1.注册*);System.out.println(*2.登录*); System.out.

2、println(*3.收入*); System.out.println(*4.支出*); System.out.println(*5.查询与统计*); System.out.println(*6.写读取文件*);System.out.println(*7.注销用户*); System.out.println(*8.退出*);Scanner s = new Scanner(System.in);int userPrint = s.nextInt();switch (userPrint) case 1:b.register();break;case 2:b.login();break;case 3

3、:b.save();break;case 4:b.get();break;case 5:b.find();break;case 6:b.f(); break;/*case 7: b.读出();break;*/case 7:b.exit();break;case 8:bRun = false;break;default:主方法： package 个人收支管理系统;import java.io.BufferedReader;import java.io.BufferedWriter;import java.io.File;import java.io.FileReader;import java.

4、io.FileWriter;import java.io.IOException;import java.io.Reader;import java.io.Writer;import java.util.ArrayList;import java.util.Date;import java.util.LinkedList;import java.util.Scanner;import java.util.Vector;public class Manager LinkedList list = new LinkedList();ArrayListVector allUser = null;Ve

5、ctor currentUser = null;Date date= new Date();/* * 声明Vector * 第1个元素存储 卡号，下标为0 * 第2个元素存储 密码，下标为1 * 第3个元素存储用户的余额，下标为2 * */public Manager() allUser = new ArrayListVector();public void register() System.out.println(请输入注册信息，格式为 卡号-密码-开卡额);Scanner s = new Scanner(System.in);String information = s.next();S

6、tring infos = information.split(-);/实例化一个Vector表示新的用户Vector v = new Vector();v.add(infos0);v.add(infos1);v.add(infos2);allUser.add(v);public void login() System.out.println(请输入您要登录的帐号：);Scanner s = new Scanner(System.in);int userPrintCode = s.nextInt();for (int i = 0; i allUser.size(); i+) Vector fi

7、ndUser = allUser.get(i);Object findCodeObj = findUser.get(0);String findCodeStr = findCodeObj.toString();int findCodeInt = Integer.parseInt(findCodeStr);if (findCodeInt = userPrintCode) boolean bLogin = validatePassword(findUser.get(1);if (bLogin) System.out.println(登录成功);/如果登录成功，将成员变量currentUser赋值为

8、findUser（卡号和密码都校验成功的用户）currentUser = findUser; else System.out.println(登录失败);/* * 该方法用于校验 * 已经查到的卡号的密码是否正确 * 参数password 已经查到的用户存储的密码 * */public boolean validatePassword(Object password) /用户输入密码System.out.println(请输入密码);Scanner s = new Scanner(System.in);int userPrintPw = s.nextInt();String passwordS

9、tr = password.toString();int passwordInt = Integer.parseInt(passwordStr);/如果用户输入的密码，和刚才传入的对应卡号的密码一致if (userPrintPw = passwordInt) return true; else return false;public void save() if (currentUser = null) System.out.println(请先登录); else /卡中余额（在执行收入之前的卡中的钱）Object beforeMoney = currentUser.get(2);/请输入您要

10、收入的额度 Scanner s = new Scanner(System.in);System.out.println(date.toLocaleString();System.out.println(请输入顺序号：);String a=s.next(); list.add(a);System.out.println(请输入日期);String data=s.next(); list.add(data);System.out.println(请输入摘要内容：);String zaiyao=s.next();list.add(zaiyao);System.out.println(请输入收入额度：

11、);int userPrintMoney = s.nextInt();int before = Integer.parseInt(beforeMoney.toString();/总额 = 之前的余额 + 用户这次的收入额度int sum = before + userPrintMoney;/把总额再存储到当前的用户信息中（位置是第3个，下标为2）currentUser.set(2, sum); System.out.println(当前额度：+currentUser.set(2, sum); public void get() if (currentUser = null) System.ou

12、t.println(请先登录); else System.out.println(请输入您要支出的额度);Scanner s = new Scanner(System.in);int userPrintMoney = s.nextInt();Object beforeMoney = currentUser.get(2);int before = Integer.parseInt(beforeMoney.toString();if (before userPrintMoney) System.out.println(余额不足); else System.out.println(date.toLo

13、caleString();System.out.println(请输入顺序号：);String a1=s.next(); list.add(a1);System.out.println(请输入日期);String data1=s.next();list.add(data1);System.out.println(请输入摘要内容：);String zaiyao1=s.next();list.add(zaiyao1);/支出后的余额 = 原卡中金额 - 这次支出金额int sub = before - userPrintMoney;System.out.println(序号为：+list.get(

14、0);System.out.println(日期为：+list.get(1);System.out.println(摘要内容+list.get(2);/*System.out.println(list.get(3);*/currentUser.set(2, sub);System.out.println(支出成功！您的当前余额为： + sub); list.add(date.toLocaleString(); public void find() if (currentUser = null) System.out.println(请先登录); else System.out.println(

15、-收入时的详细记录-);System.out.println(date.toLocaleString();System.out.println(序号为：+list.get(0);System.out.println(日期为：+list.get(1);System.out.println(摘要内容：+list.get(2);System.out.println(您当前额度为：);System.out.println(-支出时的详细记录-);System.out.println(list.get(6);System.out.println(序号为：+list.get(3);System.out.p

16、rintln(日期为：+list.get(4);System.out.println(摘要内容：+list.get(5);System.out.println(您当前的余额为： + currentUser.get(2); public void f() System.out.println(友情提示您想记录文件请copy查询结果paste到a文件中); File f1=new File(G:aba.txt); File f2=new File(G:abb.txt); try Reader input=new FileReader(f1); BufferedReader br=new BufferedReader(input); Writer wt = new FileWriter(f2); BufferedWriter bw=new Buff