第十二章2

import java.awt.Menu;import java.util.*; /**  * 登录菜单*/                      public class showLoginMenu {public showLoginMenu() {System.out   .println("\n\t 欢   迎    使    用    我    行    我    素    购    物    管    理    系    统    \n");System.out.println("\t\t 1. 登   录   系   统\n");System.out.println("\t\t 2. 退   出   \n");System.out.println("* * * * * * * * * * * * * * * * * * * * * ");System.out.print("请选择,输入数字:");}              /**    *主菜单 */           public void showMainMenu() {boolean con;do {con = false;Scanner input = new Scanner(System.in);int no = input.nextInt();if (no == 1) {showMainMenu();} else if (no == 2) {showMainMenu();} else if (no == 0) {showMainMenu();} else {System.out.print("输入错误,请重新输入数字:");con = true;}} while (con);}/** * 客户信息管理菜单 */public void showSendGMenu(){boolean con;do{  con = false;Scanner input = new Scanner(System.in);int no = input.nextInt();if(no == 1){System.out.println("查询客户信息");}else if (no == 2){System.out.println("修改客户信息");}else if (no == 3){System.out.println("添加客户信息");}else if (no == 4){System.out.println("显示所有客户信息");}else if (no == 0){showMainMenu();}else{System.out.println("输入错误,请重新输入数字:");con = true;}}while(con);}/** * 真情回馈菜单 */public void showSendGMenu2 (){boolean con;do{  con = false;Scanner input = new Scanner(System.in);int no = input.nextInt();if(no == 1){System.out.println("执行幸运大放送");}else if (no == 2){System.out.println("执行幸运抽奖");}else if (no == 3){System.out.println("执行生日问候");}else if (no == 0){showMainMenu();}else{System.out.println("输入错误,请重新输入数字:");con = true;}}while(con);}        /*boolean con=true;do{      Menu menu = new Menu();menu.showMainMenu();Scanner input = new Scanner(System.in);int choice = input.nextInt();switch(choice){case 1:menu.showMainMenu();break;case 2:System.out.println("谢谢您的使用!");con=false;break;}      }while(con);*/}