创建一个购物管理系统
package day1226;
import java.util.Scanner;
/**
* StartSMS
* @author Administrator
*
*/
class StartSMS{
String username = "JadeBird";
String password = "0000";
String username_test;
String password_test;
int choice;
void run(){
do{
Scanner input = new Scanner(System.in);
System.out.println("\t欢迎使用我行我素购物管理系统");
System.out.println("\t\t1.登录系统");
System.out.println("\t\t2.退出");
System.out.println("* * * * * * * * * * * * * * * * * * * * * * * * *");
System.out.print("请选择,输入数字:");
choice = input.nextInt();
if(choice == 1){
System.out.print("请输入用户名:");
username_test = input.next();
System.out.print("请输入密码:");
password_test = input.next();
if(!username_test.equals(username)||!password_test.equals(password)){
System.out.println("@@您没有权限进入系统,请重新登录。@@");
}else{
System.out.println("@@登录成功:"+username+"@@");
System.out.println("\t我行我素购物管理系统主菜单");
System.out.println("* * * * * * * * * * * * * * * * * * * * * * * * *");
break;
}
}else if(choice == 2){
System.out.println("系统结束。");
break;
}else{
System.out.println("您输入的数字有误。");
}
}while(true);
}
}
public class homework4 {
public static void main(String[] args) {
StartSMS admin = new StartSMS();
admin.run();
}
}