java课程设计——客户管理系统源代码

1、.完整代码：1. 客户类（class person）：package 客户管理系统;public class Person private int num;private String name;private String address;private String sex;public Person()public Person(int num,String name,String address,String sex)this.num=num;=name;this.address=address;this.sex=sex;public void setNum(int

2、num)this.num=num;public int getNum()return num;public void setName(String name)=name;public String getName()return name;public void setAddress(String address)this.address=address;public String getAddress()return address;public void setSex(String sex)this.sex=sex;public String getSex()return

3、 sex;public String toString() return "t"+num+"t"+name+"t"+address+"t"+sex;2. 菜单类(class Menu)：package 客户管理系统;import java.util.Scanner;public class Menu Scanner input=new Scanner(System.in);public Menu() public int showMenu() System.out.println("*");Sy

4、stem.out.println("客户管理系统");System.out.println("=");System.out.println("【1】增加");System.out.println("【2】删除");System.out.println("【3】修改");System.out.println("【4】查询");System.out.println("【5】浏览");System.out.println("【6】退出");S

5、ystem.out.println("*");System.out.print("请选择操作：");return input.nextInt();public int subMenu() System.out.println("t【查询客户】");System.out.println("t1按客户编号查询");System.out.println("t2按客户姓名查询");System.out.println("t3按地址查询");System.out.println(&qu

6、ot;t4退出");System.out.println("t请选择查询编号");return input.nextInt();3. 实际操作类（class FileOperate ）：package 客户管理系统;import java.io.BufferedReader;import java.io.File;import java.io.FileNotFoundException;import java.io.FileReader;import java.io.IOException;import java.io.PrintWriter;import jav

7、a.util.ArrayList;import java.util.List;import java.util.Scanner;public class FileOperate private static String INFO="D:/info.dat"File file = new File(INFO);Scanner input=new Scanner(System.in);public FileOperate() if (!file.exists() try file.createNewFile();catch(IOException e) e.printStac

8、kTrace();public List<Person> getList() throws NumberFormatException,IOExceptionBufferedReader br=new BufferedReader(new FileReader(file);String msg=null;List<Person> list =new ArrayList<Person>();while (msg =br.readLine()!=null) String arr=msg.split("t");int num=Integer.p

9、arseInt(arr0);String name =arr1;String address=arr2;String sex=arr3;Person person =new Person(num,name,address,sex);list.add(person);br.close();return list;private void savelist(List<Person> list)throws FileNotFoundExceptionPrintWriter pw=new PrintWriter(new File(INFO);for (Person c:list) pw.f

10、ormat("%dt %st %st %st rn",c.getNum(),c.getName(),c.getAddress(),c.getSex();pw.close(); public int getper(int num) throws NumberFormatException,IOException List<Person> list=getList(); for (int i=0;i<list.size();i+) Person per=list.get(i); if(num=per.getNum() return i; return -1;

11、/增加 public void insert() throws NumberFormatException,IOException System.out.println("请输入编号："); int num=input.nextInt(); int index=getper(num); if (index!=-1) System.out.println("此编号已存在！"); elseSystem.out.println("请输入姓名：");String name=input.next();System.out.println(&qu

12、ot;请输入地址：");String address=input.next();System.out.println("请输入性别：");String sex=input.next(); Person person=new Person(num,name,address,sex);List<Person> list=getList();list.add(person);savelist(list);System.out.println("新增成功！"); /删除 public void delete() throws NumberF

13、ormatException,IOException System.out.println("请输入要删除的编号："); int num=input.nextInt(); List<Person> list=getList(); boolean flag=false; for(int i=0;i<list.size();i+) Person per=list.get(i); if(num=per.getNum() showTitle(); System.out.println(per); System.out.println("是否确定删除（Y/

14、N）？"); String answer=input.next(); if("Y".equalsIgnoreCase(answer) list.remove(i); savelist(list); System.out.println("删除成功!"); flag=true; break; if (!flag) System.out.println("该客户不存在！"); /修改 public void update() throws NumberFormatException,IOException shoAll(); S

15、ystem.out.println("请输入编号：n"); int num=input.nextInt(); int Id=getper(num); if (Id!=-1) System.out.println("请输入姓名:");String name=input.next();System.out.println("请输入地址:");String address=input.next();System.out.println("请输入性别:");String sex=input.next();List<P

16、erson>list=getList();Person per=list.get(Id);per.setName(name);per.setAddress(address);per.setSex(sex);showTitle();System.out.println(per);savelist(list);System.out.println("修改成功！");else System.out.println("编号不存在！"); /查询 public void search() throws NumberFormatException,IOExce

17、ption boolean flag=true; List<Person>list=getList(); if(list.size()!=0) while(flag) int slt=new Menu().subMenu();switch (slt) case 1:System.out.print("t请输入编号：");findId(input.nextInt();break;case 2:System.out.print("t请输入姓名：");findName(input.next();break;case 3:System.out.pri

18、nt("t请输入地址：");findAddress(input.next();break;case 4:flag=quit();break;else System.out.println("无任何信息！");/按编号查询 public void findId(int num) throws NumberFormatException,IOException List<Person>list=getList(); boolean flag=false; for (int i=0;i<list.size();i+) Person per =

19、list.get(i); if(num=per.getNum() showTitle(); System.out.println(per); flag=true; break; if (!flag) System.out.println("t该客户不存在！"); /按姓名查询 public void findName(String name) throws NumberFormatException,IOException List<Person>list=getList(); boolean flag=false; for (int i=0;i<list

20、.size();i+) Person per =list.get(i); if(name.equals(per.getName() showTitle(); System.out.println(per); flag=true; break; if (!flag) System.out.println("t该客户不存在！"); /按地址查找 public void findAddress(String address) throws NumberFormatException,IOException List<Person>list=getList(); boo

21、lean flag=false; for (int i=0;i<list.size();i+) Person per =list.get(i); if(address.equals(per.getAddress() showTitle(); flag=true; System.out.println(per); break; if (!flag) System.out.println("t该客户不存在！"); /退出查询 public boolean quit() System.out.println("是否确定退出（Y/N）？");if (&qu

22、ot;Y".equalsIgnoreCase(input.next() System.out.println("退出成功！");return false;else return true; /浏览 public void shoAll() throws NumberFormatException,IOException List<Person>list=getList(); if (list.size()!=0) showTitle();for (Person person:list) System.out.println(person.toString();else System.out