From f8ed252a37713e214def99aff7d760052439c685 Mon Sep 17 00:00:00 2001
From: luo-langzi <3366839375@qq.com>
Date: Tue, 27 Apr 2021 14:27:16 +0800
Subject: [PATCH] first commit

---
 .../Demo01.java"                              | 451 ++++++++++++++++++
 .../Demo02.java"                              |  87 ++++
 2 files changed, 538 insertions(+)
 create mode 100644 "\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/\347\275\227\346\265\252\345\255\220/Demo01.java"
 create mode 100644 "\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/\347\275\227\346\265\252\345\255\220/Demo02.java"

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/\347\275\227\346\265\252\345\255\220/Demo01.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/\347\275\227\346\265\252\345\255\220/Demo01.java"
new file mode 100644
index 0000000..a4d90df
--- /dev/null
+++ "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/\347\275\227\346\265\252\345\255\220/Demo01.java"
@@ -0,0 +1,451 @@
+
+
+import java.util.Scanner;
+
+public class Demo01 {
+	static Scanner sc = new Scanner(System.in);
+	static String[][] users = new String[100][4];
+	static String[][] books = new String[100][5];
+	static String[][] press = new String[100][3];
+	static String loginUser = "";
+	private static void init() {
+
+		users[0][0] = "行政部";
+		users[0][1] = "蔡东生";
+		users[0][2] = "wbd";
+		users[0][3] = "普通用户";
+		
+		users[1][0] = "行政部";
+		users[1][1] = "杨帆";
+		users[1][2] = "123";
+		users[1][3] = "工具人";
+		
+		books[0][0] = "123456";
+		books[0][1] = "从你的全世界路过";
+		books[0][2] = "50";
+		books[0][3] = "北京出版社";
+		books[0][4] = "张嘉佳";
+		
+		press[0][0] = "北京出版社";
+		press[0][1] = "北京";
+		press[0][2] = "张三";
+	}
+	
+	public static void main(String[] args) {
+
+		init();
+
+		while (true) {
+			initialinterface();
+
+		}
+
+	}
+
+	private static void initialinterface() {
+		System.out.println("欢迎登陆图书管理系统");
+		System.out.println("1.登录 2.注册");
+
+		int shuru = sc.nextInt();
+		if (shuru == 1) {
+			loginModule();
+		} else if (shuru == 2) {
+			register();
+		} else {
+			System.out.println("输入错误 请重新输入");
+		}
+
+	}
+
+	private static void register() {
+		//注册
+		int index = getFirstNullIndex(users);
+		
+		System.out.println("请输入所属部门：");
+		users[index][0] = sc.next();
+		System.out.println("请输入用户名：");
+		users[index][1] = sc.next();
+		System.out.println("请输入密码：：");
+		users[index][2] = sc.next();
+		System.out.println("请输入用户角色：");
+		users[index][3] = sc.next();
+		System.out.println("注册成功");
+
+	}
+
+	private static void loginModule() { 
+		// 登录
+		System.out.println("请输入用户名：");
+		String userName = sc.next();
+		System.out.println("请输入密码：");
+		String password = sc.next();
+
+		boolean flag = false;
+		for (int i = 0; i < users.length; i++) {
+			if (userName.equals(users[i][1]) && password.equals(users[i][2])) {
+				flag = true;
+			}
+		}
+		if (flag == true) {
+			System.out.println("登陆成功！欢迎使用");
+			loginUser = userName;
+			homePage();
+		} else {
+			System.out.println("该用户不存在或者密码错误！请重新登录！");
+		}
+
+	}
+
+	private static void homePage() {
+		//主页
+		System.out.println(loginUser + "欢迎您使用书籍管理系统！！！");
+		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 number = sc.nextInt();
+		switch (number) {
+		case 1:
+			BookManagement();
+
+		case 2:// 出版社管理
+			pressmanagement();
+
+			break;
+		case 3:// 退出登陆
+			initialinterface();
+			break;
+		case 4:// 退出系统
+			System.out.println("退出系统成功！");
+			System.exit(0);
+			break;
+
+		default:
+			break;
+		}
+
+	}
+
+	private static void pressmanagement() {
+		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 key = sc.nextInt();
+		switch (key) {
+		case 1:
+			// 增加
+			
+			int index = -1;
+			index = getFirstNullIndex(press);
+			
+			System.out.println("请输入出版社名称：");
+			press[index][0] = sc.next();
+			System.out.println("请输入出版社地址：:");
+			press[index][1] = sc.next();
+			System.out.println("请输入出版社联系人：");
+			press[index][2] = sc.next();
+			System.out.println("添加成功！");
+			pressmanagement();
+			break;
+		case 2:
+			// 删除
+			System.out.println("请输入要删除的出版社名称：");
+			String Temporaryname = sc.next();
+			int Temporaryindex = -1;
+			for (int i = 0; i < press.length; i++) {
+				if (Temporaryname.equals(press[i][1])) {
+					if (press[i][1].equals(books[i][3])) {					
+						System.out.println("不能删除！");
+					}else {
+						Temporaryindex = i;
+						System.err.println("删除成功！");
+					}
+				}
+
+			}
+
+			if (Temporaryindex != -1) {
+				press[Temporaryindex][0] = null;
+				press[Temporaryindex][1] = null;
+				press[Temporaryindex][2] = null;
+				System.out.println("删除成功！");
+			} else {
+				System.out.println("删除失败！");
+			}
+				pressmanagement();
+			break;
+		case 3:
+			// 更新
+			System.out.println("请输入出版社名称");
+			String pressupdate = sc.next();
+			int pressindex = -1;
+			for (int i = 0; i < press.length; i++) {
+				if (pressupdate.equals(press[i][0])) {
+					pressindex = i;
+					break;
+				}
+			}
+			if (pressindex != -1) {
+				
+				System.out.println("请输入更新出版社地址：");
+				press[pressindex][1] = sc.next();
+				System.out.println("请输入更新出版社联系人：");
+				press[pressindex][2] = sc.next();
+				System.out.println("更新成功！！！");
+				break;
+			} else {
+				System.out.println("该出版社名称不存在！！！");
+			}
+			pressmanagement();
+			break;
+		case 4:
+			// 根据出版社名称查询
+			System.out.println("请输入出版社名称");
+			String pressname = sc.next();
+			for (int i = 0; i < press.length; i++) {
+				if (press[i][0] != null && press[i][0].equals(pressname)) {
+					System.out.println(press[i][0] + "\t" + press[i][1] + "\t" + press[i][2] );
+				}
+				break;
+			}
+			pressmanagement();
+			break;
+		case 5:
+			// .查询所有出版社
+			for (int i = 0; i < press.length; i++) {
+				for (int j = 0; j < press[i].length; j++) {
+					if (press[i][0]!=null) {
+						System.out.println(press[i][j]+"\t");
+					}
+				}
+				break;
+			}
+			pressmanagement();
+			break;
+		case 6:
+			homePage();
+			// 返回上一级菜单
+			break;
+
+		default:
+			pressmanagement();
+			break;
+		}
+
+	}
+
+	private static int getFirstNullIndex(String[][] arr) {
+		int index = -1;
+		for (int i = 0; i < arr.length; i++) {
+			if (arr[i][0] == null) {
+				index = i;
+				break;
+			}
+		}
+		return index;
+	}
+
+	private static void BookManagement() {
+		//图书管理
+		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 select = sc.nextInt();
+		switch (select) {
+		case 1:
+			//增加	
+			Morebooks();
+
+			break;
+		case 2:
+			int Temporaryindex = -1;
+			//删除
+			System.out.println("请输入要删除的书本名称：");
+			String Temporaryname = sc.next();
+			for (int i = 0; i < books.length; i++) {
+				if (Temporaryname.equals(books[i][1])) {
+					Temporaryindex = i;
+				}
+
+			}
+
+			if (Temporaryindex != -1) {
+				books[Temporaryindex][0] = null;
+				books[Temporaryindex][1] = null;
+				books[Temporaryindex][2] = null;
+				books[Temporaryindex][3] = null;
+				books[Temporaryindex][4] = null;
+				System.out.println("删除成功！");
+			} else {
+				System.out.println("删除失败！");
+			}
+		
+			BookManagement();
+			break;
+		case 3:
+			//更新
+			System.out.println("请输入ISBN号：");
+			String bookISBN = sc.next();
+			int booksindex = -1;
+			for (int i = 0; i < books.length; i++) {
+				if (bookISBN.equals(books[i][0])) {
+					booksindex = i;
+					break;
+				}
+			}
+			if (booksindex != -1) {
+				System.out.println("请输入新的书名：");
+				books[booksindex][1] = sc.next();
+				System.out.println("请输入新的价格：");
+				books[booksindex][2] = sc.next();
+				System.out.println("请输入新的出版社：");
+				books[booksindex][3] = sc.next();
+				System.out.println("请输入新的作者：");
+				books[booksindex][4] = sc.next();
+				System.out.println("更新成功！！！");
+
+			} else {
+				System.out.println("该ISBN号不存在！！！");
+			}
+			BookManagement();
+			break;
+		case 4:
+			//查询
+			inquires();
+		case 5:
+			//返回上一级菜单
+			homePage();
+			break;
+		default:
+			break;
+		}
+
+	}
+
+	private static void inquires() {
+		System.out.println("请输入查询种类：");
+		System.out.println("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 inquire = sc.nextInt();
+		switch (inquire) {
+		case 1:
+			//isbn
+			System.out.println("请输入ISBN号：");
+			String tempisbn = sc.next();
+			int isbnindex = -1;
+			for (int i = 0; i < books.length; i++) {
+				if (tempisbn.equals(books[i][0])) {
+					isbnindex = i;
+				}
+
+			}
+			if (isbnindex != -1) {
+				for (int i = 0; i < 5; i++) {// 循环打印出来
+					System.out.print(books[isbnindex][i] + "  ");
+
+				}
+				System.out.println();
+
+			} else {
+				System.out.println("输入错误");
+			}
+			inquires();
+			break;
+		case 2:
+			//书名（模糊）
+			System.out.println("请输入书名");
+			String bookname = sc.next();
+			for (int i = 0; i < books.length; i++) {
+				if (books[i][1] != null) {
+					if (books[i][1].indexOf(bookname) != -1) {
+						System.out.println(books[i][1]);
+					}
+				} else {
+					System.out.println("没有找到这个书名!");
+				}
+			}
+			break;
+		case 3:
+			//出版社
+			System.out.println("请输入出版社名字：");
+			String pressname = sc.next();
+			for (int i = 0; i < press.length; i++) {
+				if (pressname.equals(books[i][0])) {
+					System.out.println("ISBN\t书名\t价格\t出版社\t作者");
+					for (int j = 0; j < press[i].length; j++) {
+						System.out.print(press[i][j] + "\t");
+					}
+				} else {
+					System.out.println("没有找到");
+					break;
+				}
+			}
+
+			break;
+
+		case 4:
+			//作者
+			System.out.println("请输入作者名");
+			String author = sc.next();
+			for (int i = 0; i < books.length; i++) {
+				if (books[i][4] != null && books[i][4].equals(author)) {
+					System.out.println(books[i][0] + "\t" + books[i][1] + "\t" + books[i][2] + "\t" + books[i][3] + "\t"
+							+ books[i][4] + "\t");
+				}
+			}
+			inquires();
+			break;
+		case 5:
+			//价格范围
+			System.out.println("请输入最小值");
+			int min = sc.nextInt();
+			System.out.println("请输入最大值");
+			int max = sc.nextInt();
+			for (int j = 0; j < books.length; j++) {
+				if (min <= Integer.parseInt(books[j][2]) && Integer.parseInt(books[j][2]) <= max) {
+					System.out.println("ISBN\t书名\t价格\t出版社\t作者");
+					for (int i = 0; i < books[j].length; i++) {
+						System.out.print(books[j][i] + "\t");
+						System.out.println();
+					}
+				}
+				break;
+			}
+
+			break;
+		case 6:
+			//查询所有
+			for (int i = 0; i < books.length; i++) {
+				for (int j = 0; j < books[i].length; j++) {
+					if (books[i][j] != null) {
+
+						System.out.print(books[i][j] + "\t");
+						System.out.println();
+					}
+				}
+			}
+			break;
+		case 7:
+			//返回上一级
+			BookManagement();
+			break;
+
+		default:
+			break;
+		}
+
+	}
+
+	private static void Morebooks() {
+		int index = getFirstNullIndex(books);
+		
+		System.out.println("请输入图书ISBN:");
+		books[index][0] = sc.next();
+		System.out.println("请输入书名:");
+		books[index][1] = sc.next();
+		System.out.println("请输入价格:");
+		books[index][2] = sc.next();
+		System.out.println("请输入出版社:");
+		books[index][3] = sc.next();
+		System.out.println("请输入作者:");
+		books[index][4] = sc.next();
+		System.out.println("添加成功！");
+
+		BookManagement();
+	}
+
+
+
+}
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/\347\275\227\346\265\252\345\255\220/Demo02.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/\347\275\227\346\265\252\345\255\220/Demo02.java"
new file mode 100644
index 0000000..671564c
--- /dev/null
+++ "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/\347\275\227\346\265\252\345\255\220/Demo02.java"
@@ -0,0 +1,87 @@
+import java.util.Scanner;
+
+public class Demo02 {
+	//1.采用二维数组存放用户信息（部门、用户名、密码、用户角色）、
+	//书籍信息（编码（ISBN）、书籍名称、价格、出版社、作者）、
+	//出版社信息（出版社名称、地址、联系人）
+	//2.初始化用户信息、出版社信息、书籍信息；（设置基础信息，赋值；）
+	//3.用户登录功能：请用户输入账号密码，对比用户信息是否正确：
+	//1）不正确提示“该用户不存在或者密码错误！请重新登录！”
+	//2）正确，进入系统菜单，“1 图书管理  2 出版社管理  3 退出系统” 
+
+	public static void main(String[] args) {
+		Scanner scan = new Scanner(System.in);
+		String [][] users = new String[100][4];
+		String [][] books = new String[100][5];
+		String [][] press = new String[100][3];
+		
+		users[0][0] = "行政部";
+		users[0][1] = "蔡东生";
+		users[0][2] = "wbd";
+		users[0][3] = "普通用户";
+		
+		users[1][0] = "行政部";
+		users[1][1] = "杨帆";
+		users[1][2] = "123";
+		users[1][3] = "工具人";
+		
+		books[0][0] = "123456";
+		books[0][1] = "从你的全世界路过";
+		books[0][2] = "50";
+		books[0][3] = "北京出版社";
+		books[0][4] = "张嘉佳";
+		
+		press[0][0] = "北京出版社";
+		press[0][1] = "北京";
+		press[0][2] = "张三";
+
+		while (true) {
+			System.out.println("********欢迎来到闽大图书管理系统！********");
+			System.out.println("1.登录2.注册");
+			int key = scan.nextInt();
+			if (key == 1) {
+				//登录
+				System.out.println("请输入用户名");
+				String name = scan.next();
+				System.out.println("请输入密码");
+				String password = scan.next();
+				boolean flag = false;
+				for (int i = 0; i < users.length; i++) {
+					if (name.equals(users[i][1]) && password.equals(users[i][2])) {
+						flag = true;
+						break;
+					}
+				}
+				if (flag) {
+					System.out.println("登录成功");
+					System.out.println(" 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");
+				}else {
+					System.out.println("登陆失败");
+				}
+			}
+			else if (key==2) {
+				//注册
+				int index =-1;
+				for (int i = 0; i < users.length; i++) {
+					if (users[i][0]==null) {
+						index=i;
+						System.out.println("请输入部门");
+						users[index][0] = scan.next();
+						System.out.println("请输入用户名");
+						users[index][1] = scan.next();
+						System.out.println("请输入密码");
+						users[index][2] = scan.next();
+						System.out.println("请输入用户角色");
+						users[index][3] = scan.next();
+						System.out.println("恭喜你！注册成功");
+						break;
+					}
+				}
+		}
+	
+		
+		}
+	}
+
+}
-- 
Gitee