这篇文章主要介绍“java单链表怎么实现书籍管理系统”，在日常操作中，相信很多人在java单链表怎么实现书籍管理系统问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”java单链表怎么实现书籍管理系统”的疑惑有所帮助！接下来，请跟着小编一起来学习吧！
书籍管理系统功能:
1).添加图书
2).删除图书
3).查看图书
4).修改书籍
5).修改排序方式
6).模糊查询
7).退出程序
代码实现:
Book类
package com.bookmanagement.book;public class Book {//书类 public String no; public String name; public int price; public String type; public Book next; public Book(String Bno,String Bname,int Bprive,String Btype) { this.no=Bno; this.name=Bname; this.price=Bprive; this.type=Btype; } public Book() { } //toString方法 @Override public String toString() { return " Bookno=" + no + ", Bookname=" + name + ", Bookprice=" + price + ", Booktype=" + type; } }1).添加图书
package com.bookmanagement.function;import java.util.Scanner;import com.bookmanagement.book.*;public class AddBook { static Scanner input = new Scanner(System.in); public static void addbook() { System.out.println("请输入书编号:"); String no = input.next(); System.out.println("请输入书名字:"); String name = input.next(); System.out.println("请输入书价格:"); int price = input.nextInt(); System.out.println("请输入书类型:"); String type = input.next(); Book bo = new Book(no,name,price,type); add(bo); } public static void add(Book bo) { Book temp = Test.head;//把头节点赋值给一个辅助类 boolean falg = false; while(true) { if(temp.next == null) {//判断链表是否到最后 break; } if(Test.stroing %2 == 1) {//判断是否修改了显示顺序 if(temp.next.no.compareToIgnoreCase(bo.no)<0) {//寻找适合的位置插入节点//跳过头节点 break; }else if(temp.next.no.compareToIgnoreCase(bo.no)==0){ falg = true; break; } }else { if(temp.next.no.compareToIgnoreCase(bo.no)>0) {//寻找适合的位置插入节点//跳过头节点 break; }else if(temp.next.no.compareToIgnoreCase(bo.no)==0){ falg = true; break; } } //节点后移 temp = temp.next; } if(falg) {//判断是否输入相同的编号 System.out.println("插入"+bo.no+"的数据编号已存在"); }else { bo.next = temp.next; temp.next = bo; } } }2).删除图书
package com.bookmanagement.function;import java.util.Scanner;import com.bookmanagement.book.*;public class DropBook { static Scanner input = new Scanner(System.in); public static void dropbook() { System.out.println("请输入需要删除图书的编号:"); String no = input.next(); Book temp = Test.head; boolean falg = false; while(true) { if(temp.next == null) {//判断链表是否到最后 break; } if(temp.next.no.compareToIgnoreCase(no)==0) { falg = true; break; } temp = temp.next;//temp位移 } if(falg) { temp.next=temp.next.next;//找到temp.next域指向删除的编号让下一个next覆盖 //如果需要删除的编号下一个next域指向的是null则temp.next域则下一个指向为空 System.out.println("删除成功"); }else { System.out.println("没有找到该书籍"); } }}3).查看图书
package com.bookmanagement.function;import com.bookmanagement.book.*;public class ShowBook { public static void showbook() { if(Test.head.next == null) { System.out.println("没有书籍数据"); return; } Book temp = Test.head.next;//输出头节点下一个节点 int sum=0; while(true) { if(temp == null) { break; } System.out.println(temp); sum++; temp = temp.next;//temp位移 } System.out.println("书籍总数为:"+sum); }}4).修改书籍
package com.bookmanagement.function;import java.util.Scanner;import com.bookmanagement.book.*;public class Modify { static Scanner input = new Scanner(System.in); public static void modidy() { System.out.println("请输入需要修改的图书的编号:"); String no = input.next(); Book temp = Test.head; boolean ts = false; while(true) { if(temp.next == null) { break; } if(temp.next.no.compareToIgnoreCase(no)==0) { ts = true; break; } temp = temp.next; } if(ts) { System.out.println("修改:1.名字 2.编号 3.价格 4.类型"); int falg = input.nextInt(); switch (falg) { case 1: System.out.println("请输入需要修改的名字:"); String name = input.next(); temp.next.name = name; break; case 2: System.out.println("请输入需要修改的编号:"); String Mno = input.next(); temp.next.no = Mno; Book change = temp.next; temp.next=temp.next.next; AddBook.add(change); //重新调用add方法 break; case 3: System.out.println("请输入需要修改的价格:"); int prive = input.nextInt(); temp.next.price = prive; break; case 4: System.out.println("请输入需要修改的类型:"); String type= input.next(); temp.next.type = type; break; default:System.out.println("输入有误"); break; } }else{ System.out.println("没有找到该书籍"); } }}5).修改排序方式
package com.bookmanagement.function;import java.util.Scanner;import com.bookmanagement.book.*;public class Flash { static Scanner input = new Scanner(System.in); public static void flashbook() { Book everList = new Book("","",0,""); Book temp = Test.head.next;//把有数据的赋值给辅助类 Book next = null; if(temp.next == null) {//链表只有一个数据不需要排序 System.out.println("链表只有一个数据不需要逆序"); return; } while(temp != null) { next = temp.next; temp.next = everList.next; everList.next = temp; temp = next; } Test.head.next = everList.next; if(Test.stroing%2==1) { System.out.println("修改为降序"); }else { System.out.println("修改为升序"); } }}6).模糊查询
package com.bookmanagement.function;import com.bookmanagement.book.*;import java.util.Scanner;public class Detailed { static Scanner input = new Scanner(System.in); public static void detailed() { System.out.println("功能:模糊查询"); detalied1(); } public static void detalied1() { System.out.println("输入需要查找的数据:1.书名2.编号3.价格4.类型"); int falg = input.nextInt(); switch (falg) { case 1: DetaBookName(); break; case 2: DetaBookNo(); break; case 3: DetaBookPrice(); break; case 4: DetaBookType(); break; default: break; } } public static void DetaBookName() { System.out.println("请输入模糊书名:"); String name = input.next(); Book temp = Test.head; boolean falg = false; if(Test.head.next == null) { System.out.println("没有书籍信息"); return; } while(true) { if(temp.next == null) { break; } if(temp.next.name.indexOf(name)==0) { System.out.println(temp.next); falg = true; } temp = temp.next; } if(!falg) { System.out.println("没有找到该书籍信息"); } } public static void DetaBookNo() { System.out.println("请输入模糊编号:"); String no = input.next(); Book temp = Test.head; boolean falg = false; if(Test.head.next == null) { System.out.println("没有书籍信息"); return; } while(true) { if(temp.next == null) { break; } if(temp.next.no.indexOf(no)==0) { System.out.println(temp.next); falg = true; } temp = temp.next; } if(!falg) { System.out.println("没有找到该书籍信息"); } } static int price; public static void DetaBookPrice() { System.out.print("输入符号:(>,<,=,>=,<=,!=):"); String symbol = input.next(); System.out.print("输入价格:"); price = input.nextInt(); System.out.println(); switch (symbol) { case ">": GreaterPrice(); break; case "<": LessPrice(); break; case "=": EqualPrice(); break; case ">=": GreaterEqualePrice(); break; case "<=": LessEqualePrice(); break; case "!=": NotEquale(); break; default:System.out.println("输入错误"); break; } } public static void GreaterPrice() { Book temp = Test.head; boolean falg = false; if(Test.head.next == null) { System.out.println("没有书籍信息"); } while(true) { if(temp.next == null) { break; } if(temp.next.price>price) { System.out.println(temp.next); falg = true; } temp = temp.next; } if(!falg) { System.out.println("没有书籍符合信息"); } } public static void LessPrice() { Book temp = Test.head; boolean falg = false; if(Test.head.next == null) { System.out.println("没有书籍信息"); } while(true) { if(temp.next == null) { break; } if(temp.next.price<price) { System.out.println(temp.next); falg = true; } temp = temp.next; } if(!falg) { System.out.println("没有书籍符合信息"); } } public static void EqualPrice() { Book temp = Test.head; boolean falg = false; if(Test.head.next == null) { System.out.println("没有书籍信息"); } while(true) { if(temp.next == null) { break; } if(temp.next.price==price) { System.out.println(temp.next); falg = true; } temp = temp.next; } if(!falg) { System.out.println("没有书籍符合信息"); } } public static void GreaterEqualePrice() { Book temp = Test.head; boolean falg = false; if(Test.head.next == null) { System.out.println("没有书籍信息"); } while(true) { if(temp.next == null) { break; } if(temp.next.price>=price) { System.out.println(temp.next); falg = true; } temp = temp.next; } if(!falg) { System.out.println("没有书籍符合信息"); } } public static void LessEqualePrice() { Book temp = Test.head; boolean falg = false; if(Test.head.next == null) { System.out.println("没有书籍信息"); } while(true) { if(temp.next == null) { break; } if(temp.next.price<=price) { System.out.println(temp.next); falg = true; } temp = temp.next; } if(!falg) { System.out.println("没有书籍符合信息"); } } public static void NotEquale() { Book temp = Test.head; boolean falg = false; if(Test.head.next == null) { System.out.println("没有书籍信息"); } while(true) { if(temp.next == null) { break; } if(temp.next.price!=price) { System.out.println(temp.next); falg = true; } temp = temp.next; } if(!falg) { System.out.println("没有书籍符合信息"); } } public static void DetaBookType() { System.out.println("请输入模糊类型:"); String type = input.next(); Book temp = Test.head; boolean falg = false; if(Test.head.next == null) { System.out.println("没有书籍信息"); return; } while(true) { if(temp.next == null) { break; } if(temp.next.type.indexOf(type)==0) { System.out.println(temp.next); falg = true; } temp = temp.next; } if(!falg) { System.out.println("没有找到该书籍信息"); } } }7).测试类
package com.bookmanagement.function;import java.util.Scanner;import com.bookmanagement.book.*;public class Test { static int stroing=0; public static Book head = new Book("","",0,"");//建立链表头 public static void main(String[] args) { Scanner input = new Scanner(System.in); System.out.println("-----欢迎进入图书管理系统-----"); boolean temp = true; while(temp) { System.out.println("1).添加图书"); System.out.println("2).删除图书"); System.out.println("3).查看图书"); System.out.println("4).修改书籍"); System.out.println("5).修改排序方式"); System.out.println("6).模糊查询"); System.out.println("7).退出程序"); int choose = input.nextInt(); switch (choose) { case 1: AddBook.addbook();//添加书籍 break; case 2: DropBook.dropbook();//删除书籍 break; case 3: ShowBook.showbook();//查看书籍 break; case 4: Modify.modidy();//修改书籍 break; case 5: stroing++; Flash.flashbook();//修改排序方式 break; case 6: Detailed.detailed();//模糊查询 break; case 7: temp = false;//退出程序 break; default:System.out.println("输入错误"); break; } } System.out.println("程序退出,欢迎下次使用"); input.close(); }}到此，关于“java单链表怎么实现书籍管理系统”的学习就结束了，希望能够解决大家的疑惑。理论与实践的搭配能更好的帮助大家学习，快去试试吧！若想继续学习更多相关知识，请继续关注编程网网站，小编会继续努力为大家带来更多实用的文章！
