• 图书管理系统（面向对象+数组）

    package KindMethod2;

    //           属性块

    public class Library {

        private String name;        //图书名称
        private int state;          //借阅状态，0：可借阅，1：已借出
        private int date;           //借出日期
        private int count;          //借出次数

        public Library() {

        }

        public Library(String name, int state, int date, int count) {
            this.name = name;
            this.state = state;
            this.date = date;
            this.count = count;
        }

        public String getName() {
            return name;
        }

        public void setName(String name) {
            this.name = name;
        }

        public int getState() {
            return state;
        }

        public void setState(int state) {
            this.state = state;
        }

        public int getDate() {
            return date;
        }

        public void setDate(int date) {
            this.date = date;
        }

        public int getCount() {
            return count;
        }

        public void setCount(int count) {
            this.count = count;
        }
    }
     

    1. package KindMethod2;
    2.  
    3. public class BookRealize {
    4.     private Library[] librarie;         //存储图书数组
    5.     private int total;      //数组下标
    6.  
    7.     public Library[] getLibrarie() {
    8.         return librarie;
    9.     }
    10.  
    11.     public void setLibrarie(Library[] librarie) {
    12.         this.librarie = librarie;
    13.     }
    14.  
    15.     public int getTotal() {
    16.         return total;
    17.     }
    18.  
    19.     public void setTotal(int total) {
    20.         this.total = total;
    21.     }
    22.     public BookRealize(int tota){
    23.         librarie=new Library[tota];
    24.     }
    25. //    新增图书
    26.     public boolean addBook(Library library){
    27.         if(total<0 || total>librarie.length){
    28.             return false;
    29.         }else{
    30.             librarie[total++]=library;
    31.             return true;
    32.         }
    33.     }
    34. //    查看图书
    35.     public Library[] showBook(){
    36.         Library[] newlibraries= new Library[total];
    37.         for(int i=0 ;i
    38.             newlibraries[i]=librarie[i];
    39.         }
    40.         return newlibraries;
    41.         }
    42.  
    43.  
    44. //    删除图书
    45.     public boolean deleteBook(int num){
    46.         if(num>total || num<0){
    47.             return false;
    48.         }else{
    49.             Library[] newLibraries=new Library[total];
    50.             for(int i=num;i
    51.                 librarie[i]=newLibraries[i];
    52.             }
    53.             librarie[--total]=null;
    54.             return true;
    55.         }
    56.     }
    57. //    借出图书
    58.     public boolean borrow(int num){
    59.         if(num>total || num<0 || librarie[num].getState()==1){
    60.             return false;
    61.         }else{
    62.             librarie[num].setState(1);
    63.             librarie[num].setCount(librarie[num].getCount()+1);
    64.             return true;
    65.         }
    66. //        Library[] newlibraries1 = new Library[total];
    67. //        int num=0;
    68. //            for(int j=0;j
    69. //                if (newlibraries1[j].getState()==0){
    70. //                    newlibraries1[num++]=newlibraries1[j];
    71. //                }
    72. //            }
    73. //            return newlibraries1;
    74.     }
    75.  
    76. //    归还图书
    77.     public boolean retur(int num){
    78.         if(num>total || num<0 || librarie[num].getState()==0){
    79.             return false;
    80.         }else{
    81.             librarie[num].setState(0);
    82.             return true;
    83.         }
    84.     }
    85. }
    1. package KindMethod2;
    2.  
    3. import java.util.Scanner;
    4.  
    5. public class Test {
    6. BookRealize bookRealize = new BookRealize(6);
    7.     public Test(){
    8.     Library library =new Library("三国演义",0,21,23);
    9.     bookRealize.addBook(library);
    10.     }
    11.     Scanner sc =new Scanner(System.in);
    12.     public void setting(){
    13.         boolean bool=true;
    14.         do{
    15.             System.out.println("----------------------迷你图书管理系统---------------------");
    16.             System.out.println("\t\t1、新增图书");
    17.             System.out.println("\t\t2、查看图书");
    18.             System.out.println("\t\t3、删除图书");
    19.             System.out.println("\t\t4、借出图书");
    20.             System.out.println("\t\t5、归还图书");
    21.             System.out.println("\t\t6、退出图书系统");
    22.             System.out.print("请选择：");
    23.             int choose = sc.nextInt();
    24.             switch (choose){
    25.                 case 1:
    26.                     addBook();
    27.                     break;
    28.                 case 2:
    29.                     showBook();
    30.                     break;
    31.                 case 3:
    32.                     deleteBook();
    33.                     break;
    34.                 case 4:
    35.                     borrowBook();
    36.                     break;
    37.                 case 5:
    38.                     retueBook();
    39.                     break;
    40.                 case 6:
    41.                     bool=false;
    42.                     System.out.println("已退出");
    43.             }
    44.         }while(bool);
    45.     }
    46. //    增加
    47.     public void addBook(){
    48.         System.out.println("--------------------新增图书----------------------");
    49.         System.out.print("图书名称");
    50.         String name = sc.next();
    51.         System.out.print("借阅状态(0:可借阅，1：已借出)");
    52.         int state = sc.nextInt();
    53.         System.out.print("借出日期(当月1-31号)");
    54.         int date = sc.nextInt();
    55.         System.out.print("借出次数");
    56.         int count = sc.nextInt();
    57.         Library library=new Library(name,state,date,count);
    58.         boolean boole=bookRealize.addBook(library);
    59.         if(boole==true){
    60.             System.out.println("\t添加成功");
    61.         }else{
    62.             System.out.println("\t添加失败");
    63.         }
    64.     }
    65. //    查看图书
    66.     public void showBook(){
    67.         Library[] books = bookRealize.showBook();
    68.         if(books==null){
    69.             System.out.println("你没有任何图书");
    70.             return;
    71.         }
    72.         System.out.println("编号"+"\t\t名字"+"\t\t借阅状态"+"\t\t借出日期"+"\t借出次数");
    73.         for(int i=0;i
    74.             System.out.println((i+1)+"\t\t"+books[i].getName()+"\t\t"+books[i].getState()+"\t\t"+
    75.                     books[i].getDate()+"\t\t"+books[i].getCount());
    76.         }
    77.         return;
    78.     }
    79. //    删除图书
    80.     public void deleteBook(){
    81.         Library[] books = bookRealize.showBook();
    82.         System.out.println("编号"+"\t\t名字"+"\t\t借阅状态"+"\t\t借出日期"+"\t\t借出次数");
    83.         for(int i=0;i
    84.             System.out.println((i+1)+"\t\t"+books[i].getName()+"\t\t"+books[i].getState()+"\t\t"+
    85.                     books[i].getDate()+"\t\t"+books[i].getCount());
    86.         }
    87.         System.out.print("请输入要删除图书的编号：");
    88.         int num= sc.nextInt();
    89.         boolean boole =bookRealize.deleteBook(num-1);
    90.         if (boole==true){
    91.             System.out.println("删除图书成功");
    92.         }else{
    93.             System.out.println("删除图书失败");
    94.         }
    95.         return;
    96.     }
    97.     //        借出图书
    98.     public void borrowBook(){
    99.         Library[] books = bookRealize.showBook();
    100.         System.out.println("编号"+"\t\t名字"+"\t\t借阅状态"+"\t\t借出日期"+"\t\t借出次数");
    101.         for(int i=0;i
    102.             System.out.println((i+1)+"\t\t"+books[i].getName()+"\t\t"+books[i].getState()+"\t\t"+
    103.                     books[i].getDate()+"\t\t"+books[i].getCount());
    104.         }
    105.         System.out.print("请输入要借书的书号：");
    106.         int num = sc.nextInt();
    107.         boolean boole=bookRealize.borrow(num-1);
    108.         if(boole==true){
    109.             System.out.println("借书成功");
    110.         }else{
    111.             System.out.println("借书失败，输入有误或已经借出去了");
    112.         }
    113.         return;
    114.     }
    115. //    归还图书
    116.     public void retueBook(){
    117.         Library[] books = bookRealize.showBook();
    118.         System.out.println("编号"+"\t\t名字"+"\t\t借阅状态"+"\t\t借出日期"+"\t\t借出次数");
    119.         for(int i=0;i
    120.             System.out.println((i+1)+"\t\t"+books[i].getName()+"\t\t"+books[i].getState()+"\t\t"+
    121.                     books[i].getDate()+"\t\t"+books[i].getCount());
    122.         }
    123.         System.out.print("请输入要还书的书号：");
    124.         int num = sc.nextInt();
    125.         boolean boole=bookRealize.borrow(num-1);
    126.         if(boole==true){
    127.             System.out.println("还书成功");
    128.         }else{
    129.             System.out.println("还书失败，输入的书号有误");
    130.         }
    131.         return;
    132. }
    133.     public static void main(String[] args) {
    134.         Test test = new Test();
    135.         test.setting();
    136.     }
    137. }

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  • 原文地址：https://blog.csdn.net/fool_Java/article/details/126234767