正好前段时间写好喊做过。看下符合需求不，唉上传不了，只有全发了
//该类是程序启动入口package cn.bbs.gz.mybms
import java.io.IOException
public class Test
{
public static void main(String[] args) throws IOException
{
new BookManager().showMenu()
}
} //该类是数据存储中心
package cn.bbs.gz.mybms
import java.util.LinkedList
public class Books
{
static LinkedList<Book> list=new LinkedList<Book>()
static{
//初始化数据
list.add(new Book("Java核心技术123","SunWu",168,"香港旺角","J123","2013-03-15"))
list.add(new Book("Java编程思想","老马",128,"广州","G111","2013-01-26"))
list.add(new Book("Java框架集","老孙",89,"广州","S520","2013-03-17"))
list.add(new Book("HTML+CSS","老牛",99,"上海","H119","2013-03-18"))
list.add(new Book("JavaWeb开发","小丽",118,"北京","B1314","2008-08-08"))
}
} //该类是友衡Book模型
package cn.bbs.gz.mybms
public class Book
{
private String name//书名
private String author//作者
private double price//价钱
private String publisher//出版社
private String isbn//书号
private String date//出版日期
public Book() {
}
public Book(String name, String author, double price, String publisher,
String isbn, String date) {
super()
this.name = name
this.author = author
this.price = price
this.publisher = publisher
this.isbn = isbn
this.date = date
}
public String getName() {
return name
}
public void setName(String name) {
this.name = name
}
public String getAuthor() {
return author
}
public void setAuthor(String author) {
this.author = author
}
public double getPrice() {
return price
}
public void setPrice(double price) {
this.price = price
}
public String getPublisher() {
return publisher
}
public void setPublisher(String publisher) {
this.publisher = publisher
}
public String getIsbn() {
return isbn
}
public void setIsbn(String isbn) {
this.isbn = isbn
}
public String getDate() {
return 渗雀date
}
public void setDate(String date) {
this.date = date
}
} //该类是图书管理中心
package cn.itcast.gz.mybms
import java.io.IOException
import java.util.Collections
import java.util.Comparator
import java.util.LinkedList
import java.util.Scanner
public class BookManager
{
LinkedList<Book> list = Books.list
public void showMenu() throws IOException
{
//显示主菜单(一级菜单)
System.out.println("-------------------欢迎光临本图书管理系统-------------------")
System.out.println("(A)查看 (B)增加 (C)删除 (D)修改 (X)退出")
Scanner sc = new Scanner(System.in)
String str = sc.nextLine()
if(str.equalsIgnoreCase("A"))
{
System.out.println("-------------------------查询界面--------------------------")
showSelect()
}
else if(str.equalsIgnoreCase("B"))
{
System.out.println("-------------------------增加界面--------------------------")
showAdd()
}
else if(str.equalsIgnoreCase("C"))
{
System.out.println("-------------------------删除界面--------------------------")
showDelete()
}
else if(str.equalsIgnoreCase("D"))
{
System.out.println("-------------------------修改界面--------------------------")
showUpdate()
}
else if(str.equalsIgnoreCase("X"))
{
System.out.println("系统退出")
System.exit(0)
}
else
{
System.out.println("输入无效字符!!!")
showMenu()
}
}
private void showUpdate() throws IOException
{
// -------------------------修改界面--------------------------
String name =""//书名
String author=""//作者
double price=0.0//价钱
String publisher=""//出版社
String isbn=""//书号
String date=""//出版日期
Scanner sc = new Scanner(System.in)//字符串
Scanner sc2 = new Scanner(System.in)//整型
Scanner sc3 = new Scanner(System.in)//double型
System.out.println("书号\t书名\t\t作者\t价格\t出版社\t编号\t出版日期")
for(int i=0i<list.size()i++)
{
System.out.println(i+"\t"+list.get(i).getName()+"\t"+list.get(i).getAuthor()+"\t"+list.get(i).getPrice()
+"\t"+list.get(i).getPublisher()+"\t"+list.get(i).getIsbn()+"\t"+list.get(i).getDate())
}
System.out.println("请选择你要修改的书号：")
int num = sc2.nextInt()
if(num>=0 && num<list.size())
{
while(true)
{
System.out.println("请选择修改：(1)书名 (2)作者 (3)价格 (4)出版社 (5)编号 (6)出版日期 (7)保存修改 (8)退出")
int num2 = sc2.nextInt()
switch(num2)
{
case 1:
System.out.println("请输入新的书名：")
name = sc.nextLine()
break
case 2:
System.out.println("请输入新的作者：")
author = sc.nextLine()
break
case 3:
System.out.println("请输入新的价格：")
price = sc3.nextDouble()
break
case 4:
System.out.println("请输入新的出版社：")
publisher = sc.nextLine()
break
case 5:
System.out.println("请输入新的编号：")
isbn = sc.nextLine()
break
case 6:
System.out.println("请输入新的出版日期：")
date = sc.nextLine()
break
case 7:
/*if(!name.equals(""))
{
list.get(num).setName(name)
}
if(!author.equals(""))
{
list.get(num).setAuthor(author)
}
if(price!=0.0)
{
list.get(num).setPrice(price)
}
if(!publisher.equals(""))
{
list.get(num).setPublisher(publisher)
}
if(!isbn.equals(""))
{
list.get(num).setIsbn(isbn)
}
if(!date.equals(""))
{
list.get(num).setDate(date)
}*/
if(name.equals(""))
{
name = list.get(num).getName()
}
if(author.equals(""))
{
author = list.get(num).getAuthor()
}
if(price==0.0)
{
price = list.get(num).getPrice()
}
if(publisher.equals(""))
{
publisher = list.get(num).getPublisher()
}
if(isbn.equals(""))
{
isbn = list.get(num).getIsbn()
}
if(date.equals(""))
{
date = list.get(num).getDate()
}
list.set(num, new Book(name,author,price,publisher,isbn,date))
System.out.println("保存成功!")
break
case 8:
showMenu()
break
default :
System.out.println("输入不正确，请重新输入")
continue
}
}
}
else
{
System.out.println("您输入的书号不正确!")
showUpdate()
}
}
private void showDelete() throws IOException
{
// -------------------------删除界面--------------------------
System.out.println("书号\t书名\t\t作者\t价格\t出版社\t编号\t出版日期")
for(int i=0i<list.size()i++)
{
System.out.println(i+"\t"+list.get(i).getName()+"\t"+list.get(i).getAuthor()+"\t"+list.get(i).getPrice()
+"\t"+list.get(i).getPublisher()+"\t"+list.get(i).getIsbn()+"\t"+list.get(i).getDate())
}
System.out.println("请选择您要删除的书号：")
Scanner sc = new Scanner(System.in)
Scanner sc2 = new Scanner(System.in)
int num = sc.nextInt()
if(num>=0 && num<list.size())
{
if(list.remove(num)!=null)
{
System.out.println("删除成功!是否继续?(Y/N)")
String str = sc2.nextLine()
if(str.equalsIgnoreCase("Y"))
{
showDelete()
}
else
{
showMenu()
}
}
else
{
System.out.println("删除失败，请重新尝试")
showDelete()
}
}
else
{
System.out.println("您输入的数字不正确!")
showDelete()
}
}
private void showAdd() throws IOException
{
// -------------------------增加界面--------------------------
Scanner sc = new Scanner(System.in)
Scanner sc2 = new Scanner(System.in)
String name =""//书名
String author=""//作者
double price=0.0//价钱
String publisher=""//出版社
String isbn=""//书号
String date=""//出版日期
System.out.println("请输入书名：")
name = sc.nextLine()
System.out.println("请输入作者：")
author = sc.nextLine()
System.out.println("请输入价格：")
price = sc.nextDouble()
System.out.println("请输入出版社：")
publisher = sc2.nextLine()
System.out.println("请输入书号：")
isbn = sc2.nextLine()
System.out.println("请输入出版日期：")
date = sc2.nextLine()
boolean bo = list.add(new Book(name,author,price,publisher,isbn,date))
if(bo)
{
System.out.println("添加成功!")
System.out.println("您添加的书的信息是：")
System.out.println("书名："+name)
System.out.println("作者："+author)
System.out.println("价格："+price)
System.out.println("出版社："+publisher)
System.out.println("书号："+isbn)
System.out.println("出版日期："+date)
System.out.println("是否还要添加?(Y/N)")
String isAdd = sc2.nextLine()
if(isAdd.equalsIgnoreCase("Y"))
{
showAdd()
}
else
{
showMenu()
}
}
else
{
System.out.println("添加失败")
}
}
public void showSelect() throws IOException
{
//-------------------------查询界面--------------------------
System.out.println("书名\t\t作者\t价格\t出版社\t编号\t出版日期")
for(Book book : list)
{
System.out.println(book.getName()+"\t"+book.getAuthor()+"\t"+book.getPrice()
+"\t"+book.getPublisher()+"\t"+book.getIsbn()+"\t"+book.getDate())
}
System.out.println("请选择排序方式：(1)书名 (2)作者 (3)价格 (4)出版日期 (5)返回上一级")
Scanner sc = new Scanner(System.in)
String str = sc.nextLine()
select(str.charAt(0))
showSelect()
}
private void select(char c) throws IOException
{
Comparator<Book> comparator = null
switch(c)
{
case '1':
//按照 书名排序
comparator = new Comparator<Book>(){
@Override
public int compare(Book o1, Book o2)
{
if(o1.getName().compareTo(o2.getName())!=0)
{
return o1.getName().compareTo(o2.getName())
}
return String.valueOf(o1.getPrice()).compareTo(String.valueOf(o2.getPrice()))
}
}
break
case '2':
//按照 作者名称排序
comparator = new Comparator<Book>(){
@Override
public int compare(Book o1, Book o2)
{
if(o1.getAuthor().compareTo(o2.getAuthor())!=0)
{
return o1.getAuthor().compareTo(o2.getAuthor())
}
return String.valueOf(o1.getPrice()).compareTo(String.valueOf(o2.getPrice()))
}
}
break
case '3':
//按照价格排序
comparator = new Comparator<Book>(){
@Override
public int compare(Book o1, Book o2)
{
Double d1 = new Double(o1.getPrice())
Double d2 = new Double(o2.getPrice())
if(d1.compareTo(d2)!=0)
{
return d1.compareTo(d2)
}
return o1.getName().compareTo(o2.getName())
}
}
break
case '4':
//按照出版日期排序
comparator = new Comparator<Book>(){
@Override
public int compare(Book o1, Book o2)
{
if(o1.getDate().compareTo(o2.getDate())!=0)
{
return o1.getDate().compareTo(o2.getDate())
}
return String.valueOf(o1.getPrice()).compareTo(String.valueOf(o2.getPrice()))
}
}
break
case '5':
showMenu()
break
default :
System.out.println("请输入合法标识")
showSelect()
break
}
Collections.sort(list,comparator)
}
}
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