java课程设计——客户管理系统源代码

pw.format( "%d\t%s\t%s\t%s\t\r\n" dress(), c .getSex());
} pw.close();
, c.getNum(), c.getName(), c .getAd
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} publicint getper( int num) throws NumberFormatException,IOException{
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boolean flag =true ; List<Person> list =getList(); if ( list .size()!=0){
while ( flag ){ int slt =newMenu().subMenu(); switch ( slt ){ case 1:
System. out .print( "\t 请输入编号： " ); findId( input .nextInt()); break ; case 2:
String sex =input .next();
List<Person> list =getList(); Person per =list .get( Id );
per .setName( name );
per .setSex( sex );
address ,String
sex ){
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} public return }
}
StringtoString(){ "\t" +num+"\t" +name+"\t"
+address +"\t"
+sex ;
2.菜单类 (classMenu)：
package 客户管理系统 ; import
publicclass Menu{ Scanner input =newScanner(System. in );
public Menu(){}
publicint showMenu(){
System. out .println( "***********************************"
);
System. out .println( System. out .println(
" 客户管理系统 " ); "===================================" );
System. out .println( " 新增成功！ " ); } } // 删除 publicvoid delete() throws NumberFormatException,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 ++){
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import
import
import
import
import
import java.util.Scanner;
publicclass FileOperate{
privatestatic String INFO="D:/info.dat" ;
File file =newFile( INFO);
publicint subMenu(){
System. out .println( "\t 【查询客户】 " );
System. out .println( "\t[1] 按客户编号查询 " );
System. out .println( "\t[2] 按客户姓名查询 " );
System. out .println( "\t[3] 按地址查询 " );
Scanner input =newScanner(System. in );
public FileOperate(){
if (! file .exists()){
try {
file .createNewFile();
} catch (IOException e){
e.printStackTrace();
完整代码：
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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 this . num=num; this . name=name; this . address =address ; this . sex =sex ; } publicvoid setNum( int num){ this . num=num; } publicint getNum(){ return num; } publicvoid setName(String name){ this . 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 StringgetSex(){ return sex ;
System. out .println( " 此编号已存在！ " );} else {
System. out .println( " 请输入姓名： " ); String name=input .next();
System. out .println( " 请输入地址： " ); String address =input .next();
Person per =list .get( i ); if ( num==per .getNum()){
showTitle(); System. out .println( per );
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System. out .println( " 是否确定删除（ Y/N）？ " );
String answer =input .next();
return list ;
}
privatevoid savelist(List<Person>
list ) throws FileNotFoundExceptio
n{
PrintWriter pw=newPrintWriter( newFile( INFO));
for (Person c: list ){
}
}
// 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( " 【1】增加 " );
System. out .println( " 【2】删除 " );
System. out .println( " 【3】修改 " );
System. out .println( System. out .println(
" 【4】查询 " ); " 【5】浏览 " );
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
publicvoid search() throws NumberFormatException,IOException{
String name=arr [1];
String address =arr [2];
String sex =arr [3];
Person person =newPerson( num, name, address , sex );
list .add( person );
}
br .close();
List<Person> list =newArrayList<Person>();
while (( msg=br .readLine())!= null ){
String arr []= msg.split( "\t" );
int num=Integer. parseInt ( arr [0]);