供大家参考

package com.class3;

public class FindBook {

public int id;

public String name;

public FindBook(int id,String name) {

// TODO Auto-generated constructor stub

this.id=id;

this.name=name;

}

public String GetBook() {

// TODO Auto-generated constructor stub

return this.id+"\t"+this.name;

}

public int getId() {

return id;

}

public void setId(int id) {

this.id = id;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

}

package com.class3;

import java.util.InputMismatchException;

import java.util.Scanner;

public class InitialBook {

FindBook fb[]= {new FindBook(1,"论语"),new FindBook(2,"数学")};

public static void main(String[] args) {

InitialBook in=new InitialBook();

in.menu1();

}

public void menu1() {

System.out.println("欢迎使用图书查询小程序，书籍清单如下：");

System.out.println("图书序号\t书名");

for(int i=0;i<fb.length;i++) {

System.out.println(fb[i].GetBook());

}

System.out.println("输入命令：1-按照名称查找图书；2-按照序号查找图书");

Scanner sc=new Scanner(System.in);

int input=sc.nextInt();

switch(input) {

case 1: menu2();

break;

case 2: menu3();

break;

default:break;

}

sc.close();

}

public void menu2() {

Scanner sc=new Scanner(System.in);

System.out.println("请输入书名查找：");

String input=sc.nextLine();

boolean flag=false;

for(int i=0;i<fb.length;i++) {

if(input.equals(fb[i].getName())) {

System.out.println("根据名称搜索书名为："+fb[i].getName());

flag=true;

break;

}

}

if(flag==false) {

System.out.println("书名不存在，请重新输入");

menu2();

}

sc.close();

}

public void menu3() {

try {

Scanner sc=new Scanner(System.in);

System.out.println("请输入图书序号查找：");

int input=sc.nextInt();

boolean flag=false;

for(int j=0;j<fb.length;j++) {

if(input==fb[j].getId()) {

System.out.println("根据序号搜索书名为："+fb[j].getName());

flag=true;

break;

}

}

if(flag==false) {

System.out.println("书名不存在，请重新输入");

menu3();

}

sc.close();

}catch(InputMismatchException e) {

System.out.println("命令输入错误！请根据提示输入数字命令");

menu3();

}

}

}