java的迷你DVD管理系统

import java.util.*; public class DVDMgr { /** * 创建DVD集 */ DVDset dvd=new DVDset(); /** * 初始化数据 */ public void setData() { dvd.initial(); } /** * startMenu方法 */ public void startMenu() { int choice; System.out.println("欢 迎 使 用 MiniDVD Mgr 1.0"); System.out.println("-------------------------------------------------"); System.out.println("1. 查 看 DVD"); System.out.println("2. 借 出 DVD"); System.out.println("3. 退 出 MiniDVD Mgr"); System.out.println("-------------------------------------------------"); System.out.println(); System.out.println("请选择："); Scanner input=new Scanner(System.in); choice=input.nextInt(); switch(choice) { case 1: { search(); break; } case 2: { lend(); break; } case 3: { System.out.println("谢谢使用本系统！"); break; } default: { System.out.println("输入错误！请从新选择："); startMenu(); break; } } } public void search() { String answer=""; Scanner shi=new Scanner(System.in); System.out.println("MyDVD Mgr 1.0 ---> 查询DVD"); for(int i=0;i<dvd.name.length;i++) { if(dvd.name[i]==null) { break; } else if(dvd.state[i]==0&&dvd.name[i]!=null) { System.out.println("<<"+dvd.name[i]+">>"); } } System.out.println("输入0返回："); answer=shi.next(); if(answer.equalsIgnoreCase("0")) { returnmenu(); } else { System.out.println("输入错误，异常终止！"); } } public void lend() { String answer=""; String name=""; Scanner shi=new Scanner(System.in); System.out.println("MyDVD Mgr 1.0 ---> 借出DVD"); System.out.println("请输入要借的DVD名称："); name=shi.next(); for(int i=0;i<dvd.name.length;i++) { if(name.equals(dvd.name[i])&&dvd.state[i]==1) { System.out.println("<<"+dvd.name[i]+">> 可借"); dvd.state[i]=0; break; } else if(dvd.state[i]==0&&dvd.name[i].equals(name)) { System.out.println("该书已借出，操作不成功！"); break; } else if(i==dvd.name.length-1) { System.out.println("不存在该书籍，操作不成功！"); } } System.out.println("输入0返回："); answer=shi.next(); if(answer.equalsIgnoreCase("0")) { returnmenu(); } else { System.out.println("输入错误，异常终止！"); } } public void returnmenu() { startMenu(); } public static void main(String[] args) { DVDMgr mrg=new DVDMgr(); mrg.setData(); mrg.startMenu(); } }