1、精選優質文檔-傾情為你奉上完整代碼：1. 客戶類（class person）：package 客戶管理系統;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

2、 setNum(int 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 ge

3、tSex()return sex;public String toString() return "t"+num+"t"+name+"t"+address+"t"+sex;2. 菜單類(class Menu)：package 客戶管理系統;import java.util.Scanner;public class Menu Scanner input=new Scanner(System.in);public Menu() public int showMenu() System.out.println("

4、;*");System.out.println("客戶管理系統");System.out.println("=");System.out.println("【1】增加");System.out.println("【2】刪除");System.out.println("【3】修改");System.out.println("【4】查詢");System.out.println("【5】瀏覽");System.out.println("【6

5、】退出");System.out.println("*");System.out.print("請選擇操作：");return input.nextInt();public int subMenu() System.out.println("t【查詢客戶】");System.out.println("t1按客戶編號查詢");System.out.println("t2按客戶姓名查詢");System.out.println("t3按地址查詢");System.out

6、.println("t4退出");System.out.println("t請選擇查詢編號");return input.nextInt();3. 實際操作類（class FileOperate ）：package 客戶管理系統;import java.io.BufferedReader;import java.io.File;import java.io.FileNotFoundException;import java.io.FileReader;import java.io.IOException;import java.io.PrintWrite

7、r;import java.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)

8、 e.printStackTrace();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 n

9、um=Integer.parseInt(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

10、c:list) pw.format("%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;

11、 return -1; /增加 public void insert() throws NumberFormatException,IOException System.out.println("請輸入編號："); int num=input.nextInt(); int index=getper(num); if (index!=-1) System.out.println("此編號已存在！"); elseSystem.out.println("請輸入姓名：");String name=input.next();System.out

12、.println("請輸入地址：");String address=input.next();System.out.println("請輸入性別：");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！"); /刪除 public void delete() th

13、rows NumberFormatException,IOException System.out.println("請輸入要刪除的編號："); 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(&qu

14、ot;是否確定刪除（Y/N）？"); String answer=input.next(); if("Y".equalsIgnoreCase(answer) list.remove(i); savelist(list); System.out.println("刪除成功!"); flag=true; break; if (!flag) System.out.println("該客戶不存在！"); /修改 public void update() throws NumberFormatException,IOException

15、 shoAll(); System.out.println("請輸入編號：n"); int num=input.nextInt(); int Id=getper(num); if (Id!=-1) System.out.println("請輸入姓名:");String name=input.next();System.out.println("請輸入地址:");String address=input.next();System.out.println("請輸入性別:");String sex=input.next

16、();List<Person>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("編號不存在！"); /查詢 public void search() throws NumberFormatExce

17、ption,IOException 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請輸入編號：");findId(input.nextInt();break;case 2:System.out.print("t請輸入姓名：");findName(input.next();break;case 3:Sy

18、stem.out.print("t請輸入地址：");findAddress(input.next();break;case 4:flag=quit();break;else System.out.println("無任何信息！");/按編號查詢 public void findId(int num) throws NumberFormatException,IOException List<Person>list=getList(); boolean flag=false; for (int i=0;i<list.size();i+)

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

20、=0;i<list.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該客戶不存在！"); /按地址查找 public void findAddress(String address) throws NumberFormatException,IOException List<Person>list=ge

21、tList(); boolean 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該客戶不存在！"); /退出查詢 public boolean quit() System.out.println("是否確定退出（Y/N）？&qu

22、ot;);if ("Y".equalsIgnoreCase(input.next() System.out.println("退出成功！");return false;else return true; /瀏覽 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.prin