From 5a0b772dbdf4ef7fbd14c4ef59da10bedd9d00e9 Mon Sep 17 00:00:00 2001
From: wei-changkun <1810878212@qq.com>
Date: Tue, 27 Apr 2021 13:04:13 +0800
Subject: [PATCH] first commit

---
 .../Demo1.java"                               | 626 +++++++++++++++---
 1 file changed, 524 insertions(+), 102 deletions(-)

diff --git "a/\351\241\271\347\233\256\344\275\234\344\270\232\357\274\210\345\233\276\344\271\246\347\256\241\347\220\206\347\263\273\347\273\237\357\274\211/\351\237\246\346\230\214\345\235\244/Demo1.java" "b/\351\241\271\347\233\256\344\275\234\344\270\232\357\274\210\345\233\276\344\271\246\347\256\241\347\220\206\347\263\273\347\273\237\357\274\211/\351\237\246\346\230\214\345\235\244/Demo1.java"
index 79e0449..8caf146 100644
--- "a/\351\241\271\347\233\256\344\275\234\344\270\232\357\274\210\345\233\276\344\271\246\347\256\241\347\220\206\347\263\273\347\273\237\357\274\211/\351\237\246\346\230\214\345\235\244/Demo1.java"
+++ "b/\351\241\271\347\233\256\344\275\234\344\270\232\357\274\210\345\233\276\344\271\246\347\256\241\347\220\206\347\263\273\347\273\237\357\274\211/\351\237\246\346\230\214\345\235\244/Demo1.java"
@@ -1,147 +1,569 @@
-package fewfqewf;
-
+import java.util.Arrays;
+import java.util.Iterator;
+import java.util.Random;
 import java.util.Scanner;
 
-public class tushu {
-
-	static Scanner sc = new Scanner(System.in);
+public class Demo1 {
+	static String[][] asg = new String [100][3];
 	static String[][] users = new String[100][4];
 	static String[][] books = new String[100][5];
-	static String[][] press = new String[100][3];
+	static String[][] msg = new String[100][3];
+	static Scanner scanner = new Scanner(System.in);
 
 	public static void main(String[] args) {
-		// TODO Auto-generated method stub
 		init();
-		homepage();
+		选择();
 
 	}
 
 	private static void init() {
-		users[0][0] = "行政部";
+		users[0][0] = "软件部";
 		users[0][1] = "admin";
 		users[0][2] = "123";
-		users[0][3] = "管理员";
-
-		books[0][0] = "64644564456";
-		books[0][1] = "滑头鬼";
-		books[0][2] = "30";
-		books[0][3] = "聚英社";
-		books[0][4] = "某某某";
-
-		press[0][0] = "聚英社";
-		press[0][1] = "轻小说";
-		press[0][2] = "118162158";
-	}
-	private static void homepage() {
-		while (true) {
-			System.out.println("欢迎来到闽大图书管理系统！");
-			System.out.println("请输入数字进行选择：1.登录 2.注册");
-			
-			int key1 = sc.nextInt();
-			
-			if (key1 == 1) {
-				login();
-			} else if (key1 == 2) {
-				register();
-			} else {
-				System.out.println("输入错误！请重新输入");
-			}
+		users[0][3] = "员工";
+
+		users[1][0] = "学习部";
+		users[1][1] = "123";
+		users[1][2] = "123";
+		users[1][3] = "普通员工";
+
+		books[0][0] = "123456";
+		books[0][1] = "lll";
+		books[0][2] = "901";
+		books[0][3] = "中华书局";
+		books[0][4] = "l";
+
+		books[1][0] = "123457";
+		books[1][1] = "lin";
+		books[1][2] = "1000";
+		books[1][3] = "重庆出版社";
+		books[1][4] = "lin";
+
+		books[2][0] = "123458";
+		books[2][1] = "lili";
+		books[2][2] = "20";
+		books[2][3] = "重庆出版社";
+		books[2][4] = "li";
+
+		books[3][0] = "666";
+		books[3][1] = "ong";
+		books[3][2] = "200";
+		books[3][3] = "重庆出版社";
+		books[3][4] = "ong";
+
+		books[4][0] = "226";
+		books[4][1] = "admin";
+		books[4][2] = "226";
+		books[4][3] = "重庆出版社";
+		books[4][4] = "long";
+
+		msg[0][0] = "12456";
+		msg[0][1] = "777";
+		msg[0][2] = "aaa";
+
+		msg[1][0] = "23456";
+		msg[1][1] = "888";
+		msg[1][2] = "bbb";
+	}
+
+	private static void 选择() {
+		System.out.println("欢迎来到闽大图书管理系统！");
+		System.out.println("请选择您要执行的操作");
+		System.out.println("1.登录\t2.注册");
+		int key1 = scanner.nextInt();
+		if (key1 == 1) {
+			登录();
+		} else if (key1 == 2) {
+			注册();
+		} else {
+			System.out.println("输入错误！请重新输入");
+			选择();
 		}
+
 	}
-	private static void register() { // 注册
-		int index = -1;
-		
+
+	private static void 登录() {
+		System.out.println("请输入用户名：");
+		String usersname = scanner.next();
+
+		System.out.println("请输入密码：");
+		String password = scanner.next();
+
+		boolean flag = false;
+
 		for (int i = 0; i < users.length; i++) {
-			if (users[i][0] == null) {
-				index = i;
+			if (usersname.equals(users[i][1]) && password.equals(users[i][2])) {
+				flag = true;
 				break;
 			}
 		}
-		
+		if (flag == true) {
+			System.out.println("登录成功！");
+			选择1();
+		} else {
+			System.out.println("该用户不存在或者密码错误！请重新登录！");
+			登录();
+		}
+
+	}
+
+	private static void 注册() {
+		int index1 = getFirstNullUserIndex();
 		System.out.println("请输入所属部门：");
-		users[index][0] = sc.next();
-		
+		users[index1][0] = scanner.next();
 		System.out.println("请输入用户名：");
-		users[index][1] = sc.next();
-		
+		users[index1][1] = scanner.next();
 		System.out.println("请设置登录密码：");
-		users[index][2] = sc.next();
-		
-		users[index][3] = "普通用户";
-		
+		users[index1][2] = scanner.next();
+		users[index1][3] = "普通用户";
 		System.out.println("注册成功！");
-	
+		选择();
+
 	}
-	private static void login() { // 登录
-		System.out.println("请输入用户名：");
-		String usersname = sc.next();
-		
-		System.out.println("请输入密码：");
-		String userspass = sc.next();
-		
-		boolean flag = false;
-		
-		for (int i = 0; i < users.length; i++) {
-			if (usersname.equals(users[i][1])&& userspass.equals(users[i][2])) {
-				flag = true;
-				break;
+
+	private static void 选择1() {
+		System.out.println("欢迎您使用闽大书籍管理系统！！！");
+		System.out.println("1 图书管理  2 出版社管理  3 退出登录  4 退出系统");
+		int key2 = scanner.nextInt();
+		if (key2 == 1) {
+			System.out.println("请选择你要执行的操作");
+			System.out.println("1.增加\t2.删除\t3.更新\t4.查询菜单\t5.返回上一级");
+			int key3 = scanner.nextInt();
+			if (key3 == 1) {
+				增加();
+			} else if (key3 == 2) {
+				删除();
+			} else if (key3 == 3) {
+				更新();
+			} else if (key3 == 4) {
+				查询菜单();
+			} else if (key3 == 5) {
+				返回上一级();
+			} else {
+				System.out.println("输入错误，请重新输入");
+				选择();
 			}
 		}
-		if (flag==true) {
-			System.out.println("登录成功！");
-			System.out.println(usersname+"，欢迎您使用闽大书籍管理系统！！！");
-			System.out.println("请输入数字进行选择：1 图书管理  2 出版社管理  3 退出登录  4 退出系统");
-			
-			int key2 = sc.nextInt();
-			
-			switch (key2) {
+		if (key2 == 2) {
+			System.out.println("请输入：1.增加 2.删除 3.更新 4.根据出版社名称查询 5.查询所有出版社 6.返回上一级菜单");
+			int key4 = scanner.nextInt();
+			switch (key4) {
 			case 1:
-				System.out.println("请输入：1.增加 2.删除 3.更新 4.查询 5.返回上一级菜单");
-				
-				int b1 = sc.nextInt();
-				
-				switch (b1) {
-				case 1:
-					for (int i = 0; i < books.length; i++) {
-						System.out.println("请输入图书ISBN:");
-						books[i][0] = sc.next();
-						System.out.println("请输入书名:");
-						books[i][1] = sc.next();
-						System.out.println("请输入价格:");
-						books[i][2] = sc.next();
-						System.out.println("请输入出版社:");
-						books[i][3] = sc.next();
-						System.out.println("请输入作者:");
-						books[i][4] = sc.next();
-					}
-					break;
-
-				default:
-					break;
-				}
+				增加1();
 				break;
 			case 2:
-				System.out.println("请输入：1.增加 2.删除 3.更新 4.根据出版社名称查询 5.查询所有出版社 6.返回上一级菜单");
-				int b2 = sc.nextInt();
+				删除1();
 				break;
 			case 3:
-				System.out.println("已退出登录！");
+				更新1();
 				break;
 			case 4:
-				System.exit(0);
+				出版社();
+				break;
+			case 5:
+				查询所有();
+				break;
+			case 6:
+				选择1();
 				break;
 
 			default:
+				System.out.println("输入错误，请重新输入");
+				选择1();
+			}
+		}
+		if(key2==3) {
+			System.out.println("已退出该账号，请重新登录");
+			登录();
+		}
+		if(key2==4) {
+			System.out.println("退出系统");
+		}
+	}
+
+	private static void 出版社() {
+		System.out.println("请输入要查找的出版社名称：");
+		String lin = scanner.next();
+		System.out.println("出版社名称\t地址\t联系人");
+		for (int i = 0; i < asg.length; i++) {
+			if (lin.equals(asg[i][0])) {
+				for (int j = 0; j < asg[i].length; j++) {
+					if (asg[i][0] != null) {
+						System.out.print(asg[i][j] + "\t");
+					}
+				}
+				System.out.println();
+			}
+		}
+		选择1();
+		
+	}
+
+	private static void 查询所有() {
+		// TODO Auto-generated method stub
+		System.out.println("出版社名称\t地址\t联系人");
+		for (int i = 0; i < asg.length; i++) {
+			if (asg[i][0] != null) {
+				for (int j = 0; j < asg[i].length; j++) {
+					if (asg[i][0] != null) {
+						System.out.print(asg[i][j] + "\t");
+					}
+				}
+				System.out.println();
+			}
+		}
+		选择1();
+	}
+	
+	private static void 更新1() {
+		// TODO Auto-generated method stub
+		int i = getFirstNullUserIndex();
+		boolean falg = false;
+		System.out.println("输入要更改的出版社名称");
+		String name =scanner.next();
+		for (int j = 0; j < asg.length; j++) {
+			if(name.equals(asg[j][0])) {
+				falg = true;
 				break;
-			}	
-			}else {
-				System.out.println("该用户不存在或者密码错误！请重新登录！");	
-				homepage();
 			}
+		}
+		if(falg==true) {
+			System.out.println("请输入新出版社名称");
+			asg[i][0] = scanner.next();
+			System.out.println("请输入新地址");
+			asg[i][1] = scanner.next();
+			System.out.println("请输入新联系人");
+			asg[i][2] = scanner.next();
+			System.out.println("已更新成功");
+			选择1();
+		}else {
+			System.out.println("错误");
+			选择1();
+		}
 				
 	}
 
+	private static void 删除1() {
+		// TODO Auto-generated method stub
+		System.out.println("请输入要删除出版社");
+		String name = scanner.next();
+		boolean result = false;
+		for (int i = 0; i < asg.length; i++) {
+			if (name.equals(asg[i][0])) {
+				result = true;
+				break;
+			}
+		}
+		if (result == true) {
+			for (int i = 0; i < asg.length; i++)
+				if (name.equals(asg[i][0])) {
+					asg[i][0] = null;
+					asg[i][1] = null;
+					asg[i][2] = null;
+				}
+			System.out.println("删除成功");
+			选择1();
+		} else {
+			System.out.println("删除失败");
+			选择1();
+
+		}
+	}
+	private static void 增加1() {
+		int i = getFirstNullUserIndex();
+		System.out.println("请输入出版社名称");
+		asg[i][0] = scanner.next();
+		System.out.println("请输入出版社地址");
+		asg[i][1] = scanner.next();
+		System.out.println("请输入出版社联系人");
+		asg[i][2] = scanner.next();
+		System.out.println("添加成功");
+		选择1();
+	}
+
+	private static void 返回上一级() {
+		选择1();
+	}
+
+	private static void 查询菜单() {
+		System.out.println("请输入查询种类：1.isbn 2.书名（模糊） 3.出版社 4. 作者 5. 价格范围 6.查询所有 7.返回上一级");
+		int key = scanner.nextInt();
+		switch (key) {
+		case 1:
+			System.out.println("请输入isbn编码");
+			String li = scanner.next();
+			boolean result = false;
+			for (int i = 0; i < books.length; i++) {
+				if (li.equals(books[i][0])) {
+					result = true;
+					break;
+				}
+			}
+			if (result == true) {
+				for (int i = 0; i < books.length; i++) {
+					if (li.equals(books[i][0])) {
+						System.out.println("ISBN\t书名\t 价格 \t出版社 \t 作者");
+						for (int h = 0; h < books[i].length; h++) {
+							System.out.print(books[i][h] + "\t");
+						}
+						System.out.println();
+						查询菜单();
+						break;
+					}
+				}
+			} else {
+				System.out.println("没有这本书,请重新选择谢谢");
+				查询菜单();
+			}
+
+			break;
+		case 2:
+			System.out.println("请输入书名");
+			String lin = scanner.next();
+			boolean result1 = false;
+			for (int i = 0; i < books.length; i++) {
+				if (books[i][1] != null && books[i][1].indexOf(lin) != -1) {
+					result1 = true;
+					break;
+				}
+			}
+			if (result1 == true) {
+				for (int i = 0; i < books.length; i++) {
+					if (books[i][1] != null && books[i][1].indexOf(lin) != -1) {
+						System.out.println("ISBN\t书名\t价格\t出版社\t作者");
+						for (int h = 0; h < books[i].length; h++) {
+							System.out.print(books[i][h] + "\t");
+						}
+						System.out.println();
+						查询菜单();
+						
+					}
+				}
+			} else {
+				System.out.println("你的查询有错误，没有这本书");
+				查询菜单();
+			}
+
+			
+		case 3:
+			System.out.println("请输入出版社文字进行选择:1.中华书局\t2.作家出版社\t3.重庆出版社\t4.南海出版公司");
+			String ing = scanner.next();
+			boolean result11 = false;
+			for (int i = 0; i < books.length; i++) {
+				if (ing.equals(books[i][3])) {
+					result11 = true;
+					break;
+				}
+			}
+			if (result11 == true) {
+				for (int i = 0; i < books.length; i++) {
+					if (ing.equals(books[i][3])) {
+						System.out.println("ISBN\t书名\t价格\t出版社\t作者");
+
+						for (int h = 0; h < books[i].length; h++) {
+							System.out.print(books[i][h] + "\t");
+						}
+						System.out.println();
+						查询菜单();
+						break;
+					}
+
+				}
+
+			} else {
+
+				System.out.println("你的查询有错误");
+				查询菜单();
+			}
+
+			break;
+		case 4:
+			System.out.println("请输入你要查找的书籍作者的名字");
+			String ong = scanner.next();
+			boolean result2 = false;
+			for (int i = 0; i < books.length; i++) {
+				if (ong.equals(books[i][4])) {
+					result2 = true;
+					break;
+				}
+			}
+			if (result2 == true) {
+				for (int i = 0; i < books.length; i++) {
+					if (ong.equals(books[i][4])) {
+						System.out.println("ISBN\t书名\t价格\t出版社\t作者");
+						for (int h = 0; h < books[i].length; h++) {
+							System.out.print(books[i][h] + "\t");
+						}
+						System.out.println();
+						查询菜单();
+					}
+
+				}
+			}
+
+			else {
+				System.out.println("没有叫这个名字的作者，请重新输入。");
+				查询菜单();
+			}
+
+			break;
+		case 5:
+			System.out.println("请输入要查找的价格范围：");
+			System.out.println("最小价格");
+			int min = scanner.nextInt();
+			System.out.println("最大价格");
+			int max = scanner.nextInt();
+			System.out.println("ISBN\t\t书名\t价格\t出版社\t作者");
+			for (int i = 0; i < books.length; i++) {
+				if (min <= Integer.parseInt(books[i][2]) && Integer.parseInt(books[i][2]) <= max) {
+					for (int j = 0; j < 5; j++) {
+						System.out.print(books[i][j] + "\t");
+					}
+					System.out.println();
+					
+				}else {
+					System.out.println("没有这个范围的书");
+
+				}
+
+			}
+			break;
+		case 6:
+			System.out.println("ISBN\t书名\t价格\t出版社\t作者");
+			for (int i = 0; i < books.length; i++) {
+				if(books[i][0]!=null) {
+				for (int j = 0; j < books[i].length; j++) {
+					System.out.print(books[i][j] + "\t");
+				}
+				System.out.println();
+				}
+			}
+			查询菜单();
+
+			break;
+		case 7:
+			选择1();
+			break;
+
+		default:
+			System.out.println("输入的数字不符合条件请重新输入");
+			查询菜单();
+			break;
+		}
+
+	}
+
+	private static void 更新() {
+		// TODO Auto-generated method stub
+		System.out.println("请输入ISBN号");
+		String ling = scanner.next();
+		boolean flag = true;
+		for (int i = 0; i < books.length; i++) {
+			if (ling.equals(books[i][0])) {
+				flag = false;
+				break;
+			}
+		}
+		if (flag == false) {
+			for (int i = 0; i < asg.length; i++) {
+				if (ling.equals(books[i][0])) {
+					System.out.println("请输入新书名");
+					books[i][1] = scanner.next();
+					System.out.println("请输入价格");
+					books[i][2] = scanner.next();
+					System.out.println("请输入出版社");
+					books[i][3] = scanner.next();
+					System.out.println("请输入作者");
+					books[i][4] = scanner.next();
+					System.out.println("更新成功!!!");
+					选择1();
+				}
+			}
+		} else if(flag=true) {
+			System.out.println("该ISBN号不存在");
+			选择1();
+		}
+	}
+
+	private static void 增加() {
+		// 图书编码唯一，如果新增的图书信息编码已存在，提示“图书已存在”；不存在才进行新增书籍信息；
+		int index = getFirstNullUserIndex();// 找出书的数组中，第一个null的位置
+
+		System.out.println("请输入你要添加书籍的ISBN：");
+		String ISBN = scanner.next();
 
+		boolean result = isExistISBN(ISBN);// 判断ISBN号是否已存在。
 
+		if (result) {
+			// ISBN号重复的情况
+			System.out.println("该书已存在,请重新输入一个ISBN编码");
+		} else {
+			// ISBN号没有重复的情况，没有重复，那就赋值到数组中
+
+			books[index][0] = ISBN;
+			// 接下来就继续做赋值的动作。
+			System.out.println("书籍名称");
+			books[index][1] = scanner.next();
+			System.out.println("请输入出版社");
+			books[index][2] = scanner.next();
+			System.out.println("请输入价格");
+			books[index][3] = scanner.next();
+			System.out.println("请输入作者");
+			books[index][4] = scanner.next();
+			System.out.println("书籍添加成功!!!");
+		}
+		选择1();
+	}
 
+	private static void 删除() {
+		// 根据ISBN编码删除图书；
+		System.out.println("请输入要删除书籍的名称");
+		String name = scanner.next();
+
+		boolean result = false;
+		for (int i1 = 0; i1 < books.length; i1++) {
+			if (name.equals(books[i1][1])) {
+				result = true;
+				break;
+			}
+		}
+		if (result == true) {
+			for (int i = 0; i < books.length; i++)
+				if (name.equals(books[i][1])) {
+					books[i][0] = null;
+					books[i][1] = null;
+					books[i][2] = null;
+					books[i][3] = null;
+					books[i][4] = null;
+				}
+			System.out.println("删除成功");
+			选择1();
+		} else {
+			System.out.println("没有这本书");
+			选择1();
+
+		}
+	}
+
+	private static int getFirstNullUserIndex() {// 寻找数值一个个为null的索引
+		int index = -1;
+		for (int i = 0; i < users.length; i++) {
+			if (books[i][0] == null) {
+				index = i;
+				break;
+			}
+		}
+		return index;
+	}
+
+	private static boolean isExistISBN(String iSBN) {
+		boolean flag = false;
+		for (int i = 0; i < books.length; i++) {
+			if (iSBN.equals(books[i][0])) {
+				flag = true;
+				break;
+			}
+		}
+		return flag;
+	}
 }
\ No newline at end of file
-- 
Gitee