From 502d7849ad5f5b96255f83e9996ed4d86e410ce0 Mon Sep 17 00:00:00 2001
From: zhang-meiting <3037632087@qq.com>
Date: Wed, 28 Apr 2021 08:51:01 +0800
Subject: [PATCH] JAVA

---
 .../Library.bat"                              |    1 +
 .../Library.java"                             | 1144 +++++++++++++++++
 2 files changed, 1145 insertions(+)
 create mode 100644 "Java\351\241\271\347\233\256_\347\274\226\350\257\221\347\211\210/\347\254\2545\345\260\217\347\273\204/\351\203\221\347\276\216\345\251\267/Library.bat"
 create mode 100644 "Java\351\241\271\347\233\256_\347\274\226\350\257\221\347\211\210/\347\254\2545\345\260\217\347\273\204/\351\203\221\347\276\216\345\251\267/Library.java"

diff --git "a/Java\351\241\271\347\233\256_\347\274\226\350\257\221\347\211\210/\347\254\2545\345\260\217\347\273\204/\351\203\221\347\276\216\345\251\267/Library.bat" "b/Java\351\241\271\347\233\256_\347\274\226\350\257\221\347\211\210/\347\254\2545\345\260\217\347\273\204/\351\203\221\347\276\216\345\251\267/Library.bat"
new file mode 100644
index 0000000..44f1a1a
--- /dev/null
+++ "b/Java\351\241\271\347\233\256_\347\274\226\350\257\221\347\211\210/\347\254\2545\345\260\217\347\273\204/\351\203\221\347\276\216\345\251\267/Library.bat"
@@ -0,0 +1 @@
+java Library
\ No newline at end of file
diff --git "a/Java\351\241\271\347\233\256_\347\274\226\350\257\221\347\211\210/\347\254\2545\345\260\217\347\273\204/\351\203\221\347\276\216\345\251\267/Library.java" "b/Java\351\241\271\347\233\256_\347\274\226\350\257\221\347\211\210/\347\254\2545\345\260\217\347\273\204/\351\203\221\347\276\216\345\251\267/Library.java"
new file mode 100644
index 0000000..dd46ff0
--- /dev/null
+++ "b/Java\351\241\271\347\233\256_\347\274\226\350\257\221\347\211\210/\347\254\2545\345\260\217\347\273\204/\351\203\221\347\276\216\345\251\267/Library.java"
@@ -0,0 +1,1144 @@
+import java.lang.invoke.SwitchPoint;
+
+import java.util.Iterator;
+
+import java.util.Scanner;
+
+
+
+public class Library {
+
+	static Scanner xx = new Scanner(System.in);
+
+	static String users[][] = new String[100][4];
+
+	static String books[][] = new String[100][5];
+
+	static String pubs[][] = new String[100][3];
+
+	static String loginUser = "";
+
+
+
+//主方法
+
+	public static void main(String[] args) {
+
+		inner();
+
+		Homepage();
+
+	}
+
+
+
+//图书馆存储信息
+
+	private static void inner() {
+
+		users[0][0] = "设计部";
+
+		users[0][1] = "coco";
+
+		users[0][2] = "123";
+
+		users[0][3] = "管理员";
+
+		users[1][0] = "项目部";
+
+		users[1][1] = "一点点";
+
+		users[1][2] = "321";
+
+		users[1][3] = "普通员工";
+
+
+
+		books[0][0] = "a1";
+
+		books[0][1] = "童年";
+
+		books[0][2] = "36";
+
+		books[0][3] = "童年出版社";
+
+		books[0][4] = "高尔基";
+
+		books[1][0] = "a2";
+
+		books[1][1] = "水浒传";
+
+		books[1][2] = "108";
+
+		books[1][3] = "好汉出版社";
+
+		books[1][4] = "施耐庵";
+
+		books[2][0] = "a3";
+
+		books[2][1] = "骆驼祥子";
+
+		books[2][2] = "45";
+
+		books[2][3] = "老酒出版社";
+
+		books[2][4] = "老舍";
+
+		books[3][0] = "a4";
+
+		books[3][1] = "祥瑞";
+
+		books[3][2] = "20";
+
+		books[3][3] = "瑞兽出版社";
+
+		books[3][4] = "老舍";
+
+
+
+		pubs[0][0] = "童年出版社";
+
+		pubs[0][1] = "北京";
+
+		pubs[0][2] = "乔一";
+
+		pubs[1][0] = "好汉出版社";
+
+		pubs[1][1] = "上海";
+
+		pubs[1][2] = "陈二";
+
+		pubs[2][0] = "老酒出版社";
+
+		pubs[2][1] = "吉林";
+
+		pubs[2][2] = "吕三";
+
+	}
+
+
+
+//图书馆选择登录系统
+
+	private static void Homepage() {
+
+		System.out.println("欢迎来到闽大系统图书馆");
+
+		while (true) {
+
+			System.out.println("请选择输入：1.注册  2.登录");
+
+			int key = xx.nextInt();
+
+			switch (key) {
+
+			case 1:
+
+				writer();
+
+				break;
+
+			case 2:
+
+				login();
+
+				break;
+
+			default:
+
+				System.out.println("系统退出！");
+
+				System.exit(0);
+
+				break;
+
+			}
+
+		}
+
+	}
+
+
+
+//图书馆登录界面
+
+	private static void login() {
+
+		System.out.println("欢迎来到登录界面~");
+
+		System.out.println("请输入用户名：");
+
+		String username = xx.next();
+
+		System.out.println("请输入密码：");
+
+		String password = xx.next();
+
+		boolean flat = false;
+
+		for (int i = 0; i < users.length; i++) {
+
+			if (username.equals(users[i][1]) && password.equals(users[i][2])) {
+
+				flat = true;
+
+				loginUser = username;
+
+				break;
+
+			}
+
+		}
+
+		if (flat) {
+
+			System.out.println(loginUser + ",恭喜你登陆成功！");
+
+			System.out.println("*****登录界面结束*****");
+
+			librarygl();
+
+		} else {
+
+			System.out.println("该用户不存在或者密码错误！请重新登录！");
+
+		}
+
+	}
+
+
+
+//图书馆注册系统
+
+	private static void writer() {
+
+		System.out.println("欢迎来到注册界面~");
+
+		int wrindex = -1;
+
+		for (int i = 0; i < users.length; i++) {
+
+			if (users[i][0] == null) {
+
+				wrindex = i;
+
+				break;
+
+			}
+
+		}
+
+		System.out.println("请输入部门：");
+
+		users[wrindex][0] = xx.next();
+
+		System.out.println("请输入用户名：");
+
+		users[wrindex][1] = xx.next();
+
+		System.out.println("请输入密码：");
+
+		users[wrindex][2] = xx.next();
+
+		users[wrindex][3] = "普通员工";
+
+		System.out.println("注册成功！");
+
+		System.out.println("*****注册界面结束*****");
+
+		Homepage();
+
+	}
+
+
+
+//图书馆管理系统
+
+	private static void librarygl() {
+
+		System.out.println(loginUser+",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 order = xx.nextInt();
+
+		switch (order) {
+
+		case 1:
+
+			// 管理
+			System.out.println("******欢迎来到图书馆管理菜单******");
+			gl();
+
+			break;
+
+		case 2:
+
+			// 出版社管理
+
+			pubgl();
+
+			break;
+
+		case 3:
+
+			// 退出登录
+
+			loginUser = " ";
+
+			System.out.println("退出登录成功！");
+
+			Homepage();
+
+			break;
+
+		case 4:
+
+			// 退出系统
+
+			System.out.println("退出系统成功");
+
+			System.exit(0);
+
+			break;
+
+		default:
+
+			Homepage();
+
+			break;
+
+		}
+
+	}
+
+
+
+// 图书馆管理菜单
+
+	private static void gl() {
+
+
+		System.out.println("请选择输入管理项目：1.增加  2.删除  3.更新  4.查询 5.返回上一级菜单");
+
+		int glxz = xx.nextInt();
+
+		switch (glxz) {
+
+		case 1:
+
+			gladd();
+
+			break;
+
+		case 2:
+
+			gldelect();
+
+			break;
+
+		case 3:
+
+			glnew();
+
+			break;
+
+		case 4:
+
+			gllookfor();
+
+			break;
+		case 5:
+
+			librarygl();
+
+			break;
+
+		default:
+
+			librarygl();
+
+			break;
+
+		}
+
+	}
+
+
+
+// 图书出版社管理系统
+
+	private static void pubgl() {
+
+//		5.出版社管理菜单：
+		System.out.println("请输入数字进行选择：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 pubxz = xx.nextInt();
+
+		switch (pubxz) {
+
+		case 1:
+
+			pubadd();
+
+			break;
+
+		case 2:
+
+			pubdelect();
+
+			break;
+
+		case 3:
+
+			pubnew();
+
+			break;
+
+		case 4:
+
+			pubname();
+
+			break;
+
+		case 5:
+
+			puball();
+
+			break;
+
+		case 6:
+
+//			6)返回上一级菜单
+
+			librarygl();
+
+			break;
+
+		default:
+
+			librarygl();
+
+			break;
+
+		}
+
+	}
+
+
+
+	private static void puball() {
+
+		System.out.println("出版社名称\t\t地址\t\t联系人");
+
+		for (int i = 0; i < pubs[i].length; i++) {
+
+			for (int j = 0; j < pubs[j].length; j++) {
+
+				if (pubs[i][0] != null) {
+
+					System.out.print(pubs[i][j] + "\t\t");
+
+				}
+
+			}
+
+			System.out.println();
+
+
+
+		}
+
+		pubgl();
+
+	}
+
+
+
+//	4)根据出版社名称查询
+
+	private static void pubname() {
+
+		System.out.println("请输入出版社名称：");
+
+		String pubname = xx.next();
+
+		
+
+		for (int i = 0; i < pubs.length; i++) {
+
+			if (pubs[i][0] != null && pubs[i][1].indexOf(pubname) != -1) {
+				System.out.println("出版社名称\t地址\t联系人");
+				System.out.println(pubs[i][0] + "\t" + pubs[i][1] + "\t" + pubs[i][2]);
+
+				break;
+
+			}
+
+			System.out.println("出版社名称错误，出版社信息不存在");
+
+			break;
+
+
+
+		}
+
+		System.out.println();
+
+		pubgl();
+
+	}
+
+
+
+//	3)更新 
+
+	private static void pubnew() {
+
+		int pubc = -1;
+
+		boolean pubcc = false;
+
+		System.out.println("请输入出版社名称：");
+
+		String pubccc = xx.next();
+
+		for (int i = 0; i < books.length; i++) {
+
+			if (pubccc.equals(books[i][0])) {
+
+				pubc = i;
+
+				pubcc = true;
+
+				break;
+
+			}
+
+			System.out.println("该出版社不存在，更新失败");
+
+			break;
+
+		}
+
+		if (pubcc) {
+
+			books[pubc][0] = pubccc;
+
+			System.out.println("请输入出版社名称");
+
+			books[pubc][1] = xx.next();
+
+			System.out.println("请输入地址：");
+
+			books[pubc][2] = xx.next();
+
+			System.out.println("请输入联系人：");
+
+			books[pubc][3] = xx.next();
+
+			System.out.println("出版社信息更新成功！");
+
+		}
+
+		librarygl();
+
+	}
+
+
+
+//	2)删除：出版社有关联的图书不能删除；
+
+	private static void pubdelect() {
+
+		int pubb = -1;
+
+		boolean pubbb = false;
+
+		System.out.println("请输入出版社名称：");
+
+		String pubbbb = xx.next();
+
+		for (int i = 0; i < pubs.length; i++) {
+
+			if (pubs[i][0].equals(pubbbb)) {
+
+				pubbb = true;
+
+				pubb = i;
+
+				break;
+
+			}
+
+			System.out.println("删除失败");
+			gl();
+			break;
+
+		}
+
+		for (int j = 0; j < pubs.length; j++) {
+
+			if (pubbb) {
+
+				books[pubb][j] = null;
+
+				System.out.println("删除成功");
+
+				break;
+
+			}
+
+			librarygl();
+
+		}
+
+
+
+	}
+
+
+
+//	1)增加
+
+	private static void pubadd() {
+
+		int puba = -1;
+
+		boolean pubaa = false;
+
+		System.out.println("请输入出版社名称：");
+
+		String pubaaa = xx.next();
+
+		for (int i = 0; i < pubs.length; i++) {
+
+			if (pubaaa.equals(pubs[i][0])) {
+
+				System.out.println("出版社已存在");
+
+				break;
+
+			} else {
+
+				pubaa = true;
+
+				puba = i;
+
+				break;
+
+			}
+
+		}
+
+		if (pubaa) {
+
+			books[puba][0] = pubaaa;
+
+			System.out.println("请输入出版社名称：");
+
+			books[puba][1] = xx.next();
+
+			System.out.println("请输入地址：");
+
+			books[puba][2] = xx.next();
+
+			System.out.println("请输入联系人：");
+
+			books[puba][3] = xx.next();
+
+			System.out.println("新增出版社信息成功！");
+
+		}
+
+		librarygl();
+
+	}
+
+
+
+//	1)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；
+
+	private static void gladd() {
+
+		int glh = -1;
+
+		boolean a = false;
+
+		System.out.println("请输入书名：");
+
+		String hao = xx.next();
+
+		for (int i = 0; i < books.length; i++) {
+
+			if (hao.equals(books[i][1])) {
+
+				System.out.println("图书已存在");
+
+				break;
+
+			} else {
+
+				a = true;
+
+				glh = i;
+
+				break;
+
+			}
+
+		}
+
+		if (a) {
+
+			books[glh][0] = hao;
+
+			System.out.println("请输入书名：");
+
+			books[glh][1] = xx.next();
+
+			System.out.println("请输入价格：");
+
+			books[glh][2] = xx.next();
+
+			System.out.println("请输入出版社：");
+
+			books[glh][3] = xx.next();
+
+			System.out.println("请输入作者：");
+
+			books[glh][4] = xx.next();
+
+			System.out.println("新增书籍信息成功！");
+
+		}
+
+		gl();
+
+	}
+
+
+
+//	2)删除：根据ISBN编码删除图书；
+
+	private static void gldelect() {
+
+		int de = -1;
+
+		boolean b = false;
+
+		System.out.println("请输入书籍编号：");
+
+		String hao1 = xx.next();
+
+		for (int i = 0; i < books.length; i++) {
+
+			if (books[i][0].equals(hao1)) {
+
+				b = true;
+
+				de = i;
+
+				break;
+
+			}
+			System.out.println("没有找到该书！");
+			System.out.println("删除失败");
+			gl();
+			break;
+
+		}
+
+		for (int j = 0; j < books.length; j++) {
+
+			if (b) {
+
+				books[de][j] = null;
+
+				System.out.println("删除成功");
+				gl();
+				break;
+
+			}
+
+		}
+
+	}
+
+
+
+//	3)更新：ISBN唯一不能更改，根据ISBN更新相应的书籍信息；
+
+	private static void glnew() {
+
+		int ne = -1;
+
+		boolean c = false;
+
+		System.out.println("请输入书籍编号：");
+
+		String hao2 = xx.next();
+
+		for (int i = 0; i < books.length; i++) {
+
+			if (hao2.equals(books[i][0])) {
+
+				ne = i;
+
+				c = true;
+
+				break;
+
+			}
+
+			System.out.println("该书籍编号不存在，更新失败");
+			gl();
+			break;
+
+		}
+
+		if (c) {
+
+			books[ne][0] = hao2;
+
+			System.out.println("请输入书名");
+
+			books[ne][1] = xx.next();
+
+			System.out.println("请输入价格：");
+
+			books[ne][2] = xx.next();
+
+			System.out.println("请输入出版社：");
+
+			books[ne][3] = xx.next();
+
+			System.out.println("请输入作者：");
+
+			books[ne][4] = xx.next();
+
+			System.out.println("书籍信息更新成功！");
+
+		}
+
+		gl();
+
+	}
+
+
+
+//	4)查询菜单：
+
+	private static void gllookfor() {
+
+		System.out.println("请选择输入查询方式：1.ISBN查询 2.书名查询（模糊）3.出版社查询 4.作者查询 5.价格范围查询 6.所有书籍信息 7.返回上一级菜单");
+
+		int lk = xx.nextInt();
+
+		switch (lk) {
+
+		case 1:
+
+			System.out.println("请输入ISBN：");
+
+			String bkisbn = xx.next();
+
+			lkisbn(bkisbn);
+
+			break;
+
+		case 2:
+
+			System.out.println("请输入书名关键字：");
+
+			String bkname = xx.next();
+
+			lkname(bkname);
+
+			break;
+
+		case 3:
+
+			System.out.println("请输入出版社：");
+
+			String bkpub = xx.next();
+
+			lkpub(bkpub);
+
+			break;
+
+		case 4:
+
+			System.out.println("请输入作者：");
+
+			String bkwriter = xx.next();
+
+			lkwriter(bkwriter);
+
+			break;
+
+		case 5:
+
+			System.out.println("请输入价格范围：");
+
+			System.out.println("最高价：");
+
+			Double bkpricemax = xx.nextDouble();
+
+			System.out.println("最低价：");
+
+			Double bkpricemin = xx.nextDouble();
+
+			lkprice(bkpricemax, bkpricemin);
+
+			break;
+
+		case 6:
+
+			lkallbooks();
+
+			break;
+
+		case 7:
+
+//			g)返回上一级菜单
+
+			System.out.println("返回成功");
+
+			gl();
+
+			break;
+
+
+
+		default:
+
+			System.out.println("识别错误");
+
+			break;
+
+		}
+
+	}
+
+
+
+//	a)根据ISBN查询
+
+	private static void lkisbn(String isbn) {
+
+		for (int i = 0; i < books.length; i++) {
+
+			if (isbn.equals(books[i][0])) {
+
+				System.out.println("ISBN\t书名\t价格\t出版社\t作者");
+
+				System.out.println(books[i][0] + "\t" + books[i][1] + "\t" + books[i][2] + "\t" + books[i][3] + "\t"
+
+						+ books[i][4]);
+
+				break;
+
+			}
+
+			System.out.println("编码错误，书籍信息不存在");
+
+			break;
+
+		}
+
+		System.out.println();
+
+		gllookfor();
+
+
+
+	}
+
+
+
+//	b)根据书名查询（模糊）
+
+	private static void lkname(String name) {
+
+		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 && books[i][1].indexOf(name) != -1) {
+
+				System.out.println(books[i][0] + "\t" + books[i][1] + "\t" + books[i][2] + "\t" + books[i][3] + "\t"
+
+						+ books[i][4]);
+
+				break;
+
+			}
+
+			System.out.println("书名关键字错误，书籍信息不存在");
+
+			break;
+
+
+
+		}
+
+		System.out.println();
+
+		gllookfor();
+
+	}
+
+
+
+//		c)根据出版社查询
+
+	private static void lkpub(String pub) {
+
+		int c = -1;
+
+		boolean cc = false;
+
+		for (int i = 0; i < books.length; i++) {
+
+			if (books[i][0] != null && books[i][3].equals(pub)) {
+
+				cc = true;
+
+				c = i;
+
+			}
+
+		}
+
+		if (cc) {
+
+			System.out.println("ISBN\t书名\t价格\t出版社\t作者");
+
+			System.out.println(
+
+					books[c][0] + "\t" + books[c][1] + "\t" + books[c][2] + "\t" + books[c][3] + "\t" + books[c][4]);
+
+		} else {
+
+			System.out.println("出版社错误，书籍信息不存在");
+
+		}
+
+		gllookfor();
+
+	}
+
+
+
+//	d)根据作者查询
+
+	private static void lkwriter(String wr) {
+
+		boolean d = false;
+
+		int d1 = -1;
+
+		for (int i = 0; i < books.length; i++) {
+
+			if (books[i][0] != null && books[i][4].equals(wr)) {
+
+				d1 = i;
+
+				d = true;
+
+			}
+
+
+
+		}
+
+		for (int i = 0; i < books.length; i++) {
+
+			if (d) {
+
+				System.out.println("ISBN\t书名\t价格\t出版社\t作者");
+
+				System.out.print(books[d1][0] + "\t" + books[d1][1] + "\t" + (books[d1][2] + "") + "\t" + books[d1][3]
+
+						+ "\t" + books[d1][4]);
+
+				System.out.println();
+				break;
+			} else {
+
+				System.out.println("作者错误，书籍信息不存在");
+
+				break;
+
+			}
+
+		}
+
+		gllookfor();
+
+	}
+
+
+
+//	e)根据价格范围查询
+
+	private static void lkprice(Double prx, Double prn) {
+
+		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; i++) {
+
+			if (books[i][0] != null
+
+					&& (prx >= Double.parseDouble(books[i][2]) && Double.parseDouble(books[i][2]) >= prn)) {
+
+				System.out.print(books[i][0] + "\t" + books[i][1] + "\t" + (books[i][2] + "") + "\t" + books[i][3]
+
+						+ "\t" + books[i][4]);
+
+			
+
+			System.out.println();
+
+		}
+		else {
+			
+			break;
+		}
+		}System.out.println("没有找到书籍信息");
+		gllookfor();
+
+	}
+
+
+
+//	f)查询所有书籍信息
+
+	private static void lkallbooks() {
+
+		System.out.println("ISBN\t\t书名\t\t价格\t\t出版社\t\t作者");
+
+		for (int i = 0; i < books[i].length; i++) {
+
+			for (int j = 0; j < books[j].length; j++) {
+
+				if (books[i][0] != null) {
+
+					System.out.print(books[i][j] + "\t\t");
+
+				}
+
+			}
+
+			System.out.println();
+
+
+
+		}
+
+		gllookfor();
+
+	}
+
+}
+
-- 
Gitee