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1、java课程设计客户管理系统源代码 完整代码： 1.客户类（classperson）： package客户管理系统; publicclass Person privateint 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; publicv
2、oid setNum(int num) this.num=num; publicint getNum() return num; publicvoid setName(String name) =name; public StringgetName() return name; publicvoid setAddress(String address) this.address=address; public StringgetAddress() return address; publicvoid setSex(String sex) this.sex=sex; public Stringg
3、etSex() return sex; public StringtoString() returnt+num+t+name+t+address+t+sex; 2.菜单类(classMenu)： package客户管理系统; import publicclass Menu Scanner input=new Scanner(System.in); public Menu() publicint showMenu() System.out.println(*); System.out.println(客户管理系统); System.out.println(=); System.out.print
4、ln(增加); System.out.println(删除); System.out.println(修改); System.out.println(查询); System.out.println(浏览); System.out.println(退出); System.out.println(*); System.out.print(请选择操作：); return input.nextInt(); publicint subMenu() System.out.println(t); System.out.println(t1按客户编号查询); System.out.println(t2按客户姓
5、名查询); System.out.println(t3按地址查询); System.out.println(t4退出); System.out.println(t请选择查询编号); return input.nextInt(); 3.实际操作类（classFileOperate）：package客户管理系统; import import import import import import import import import java.util.Scanner; publicclass FileOperate privatestatic String INFO=D:/info.dat;
6、 File file=new File(INFO); Scanner input=new Scanner(System.in); public FileOperate() if(!file.exists() try file.createNewFile(); catch(IOException e) e.printStackTrace(); public ListgetList()throws NumberFormatException,IOException BufferedReader br=new BufferedReader(new FileReader(file); String m
7、sg=null; Listlist=new ArrayList(); while(msg=br.readLine()!=null) String arr=msg.split(t); int num=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; privatevoid savelist(Listlist)
8、throws FileNotFoundExceptio n PrintWriter pw=new PrintWriter(new File(INFO); for(Person c:list) pw.format(%dt%st%st%strn,c.getNum(),c.getName(),c.getAd dress(),c.getSex(); pw.close(); publicint getper(int num)throws NumberFormatException,IOException Listlist=getList(); for(int i=0;i Person per=list.
9、get(i); if(num=per.getNum() return i; return-1; /增加 publicvoid 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！); else System.out.println(请输入姓名：); String name=input.next(); System.out
10、.println(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); Listlist=getList(); list.add(person); savelist(list); System.out.println(新增成功！); /删除 publicvoid delete()throws NumberFormatException,IOException System.
11、out.println(请输入要删除的编号：); int num=input.nextInt(); Listlist=getList(); boolean flag=false; for(int i=0;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/N）？); String answer=input.next(); if(Y.equalsIgnoreCase(answer) list.remove(i); saveli
12、st(list); System.out.println(删除成功!); flag=true; break; if(!flag) System.out.println(该客户不存在！); /修改 publicvoid update()throws NumberFormatException,IOException shoAll(); System.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.n
13、ext(); System.out.println(请输入地址:); String address=input.next(); System.out.println(请输入性别:); String sex=input.next(); Listlist=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
14、！); else System.out.println(编号不存在！); /查询 publicvoid search()throws NumberFormatException,IOException boolean flag=true; Listlist=getList(); if(list.size()!=0) while(flag) int slt=new Menu().subMenu(); switch(slt) case1: System.out.print(t请输入编号：); findId(input.nextInt(); break; case2: System.out.prin
15、t(t请输入姓名：); findName(input.next(); break; case3: System.out.print(t请输入地址：); findAddress(input.next(); break; case4:flag=quit(); break; else System.out.println(无任何信息！); /按编号查询 publicvoid findId(int num)throws NumberFormatException,IOException Listlist=getList(); boolean flag=false; for(int i=0;i Pers
16、on per=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 publicvoid findName(String name)throws NumberFormatException,IOExcept ion Listlist=getList(); boolean flag=false; for(int i=0;i Person per=list.get(i); if(na
17、me.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 publicvoid findAddress(String address)throws NumberFormatException,IO Exception Listlist=getList(); boolean flag=false; for(int i=0;i Person per=list.get(i); if(address.equa
18、ls(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 publicboolean quit() System.out.println(是否确定退出（Y/N）？); if(Y.equalsIgnoreCase(input.next() System.out.println(退出成功！); returnfalse; else returntrue; /浏览 publicvoid shoAll()throws N
19、umberFormatException,IOException Listlist=getList(); if(list.size()!=0) showTitle(); for(Person person:list) System.out.println(person.toString(); else System.out.println(无任何信息！); publicvoid showTitle() System.out.println(客户信息为：nt编号t姓名t地址t性别); /退出系统 publicboolean exit() System.out.println(是否确定退出（Y/N
20、）？); return!Y.equalsIgnoreCase(input.next()?true:false; 4.测试类（classText）: package客户管理系统; import publicclass Test publicstaticvoid main(Stringargs)throws NumberFormatException, IOException Menu m=new Menu(); boolean flag=true; FileOperate fo=new FileOperate(); while(flag) int slt=m.showMenu(); switch(slt) case1:fo.insert();/增加 break; case2:fo.delete();/删除 break; case3:fo.update();/修改 break; case4:fo.search();/查询 break; case5:fo.shoAll();/浏览 break; case6:/退出 flag=fo.exit(); if(!flag) System.out.println(谢谢使用！); break;