JAVA实现人机猜拳
目录
序
基础版
运行截图
升级版
序
我们的实训内容是java，害，说实话java不怎么智能的感觉，以下是老师布置的小作业吧，直接复制就能运行（懒得写注释，都是基础代码）
服了，用了老师没有教的知识就被说是抄的，真dog
基础版
话不多说，上代码
import java.util.*;
public class Main {
static String biao = "\n********************\n";
static boolean LoginBoolean = false;
static String[] data = new String[2];
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
Main.menu(input);
}
public static void Register(Scanner input) {
String user, password;
password = "";
System.out.print("" + biao + "<<请填写个人信息>>\n");
user = input.nextLine();
do {
if (!Objects.equals(user, "")) {
System.out.print("请输入您的密码：");
password = input.nextLine();
} else {
System.out.print("请输入您的名字：");
user = input.nextLine();
}
} while (Objects.equals(user, "") || Objects.equals(password, ""));
data[0] = user;
data[1] = password;
LoginBoolean = true;
System.out.println("\n注册成功！\n");
}
public static int getmenuid(Scanner input) {
int id = 0;
try {
id = Integer.parseInt(input.next());
//天坑,未知的死循环呀
//id=input.nextInt();
if (id > 0 && id < 4) {
return id;
} else {
System.out.println("请输入合法数据\n");
}
} catch (Exception e) {
System.out.print("请输入合法数据\n");
}
return 0;
}
public static void menu(Scanner input) {
int id = 0;
String tishi = "菜单\n 1 注册\n 2 登陆\n 3 开奖\n 请输入编号:";
while (true) {
boolean break_ = true;
System.out.print(tishi);
id = getmenuid(input);
switch (id) {
case 1:
Main.Register(input);
break;
case 2:
if (LoginBoolean)
Login(data[0]);
else {
System.out.println("检测到你还没有注册，请注册\n");
}
break;
case 3:
if (LoginBoolean) {
int UserRes = 0;
UserRes = Objects.requireNonNull(Main.CreatRandom(1))[0];
int[] AllRes = Main.CreatRandom(5);
//断言防止为空
assert AllRes != null;
break_ = pandaun(UserRes, AllRes);
} else {
System.out.println("检测到你还没有注册，请注册\n");
Main.Register(input);
}
break;
}
if (id != 0) {
if (!break_)
break;
System.out.println("是否(y/n)继续");
String temp = input.next();
if (temp != null) {
if (temp.equals("n")) {
break;
}
}
}
}
}
public static int[] CreatRandom(int sum) {
if (LoginBoolean) {
int[] random_ = new int[sum];
Random r = new Random();
//随机数产生，【1000~9000+1）
for (int i = 0; i < sum; i++) {
int a = r.nextInt(9000 + 1) + 1000;
random_[i] = a;
}
return random_;
} else {
System.out.println("请注册登陆");
return null;
}
}
public static boolean pandaun(int UserId, int[] RandomId) {
for (int randomdatum : RandomId) {
if (UserId == randomdatum) {
System.out.println("恭喜你是今天的幸运星");
}
}
System.out.println("很遗憾是你不是今天的幸运星\n欢迎您的下次参与\n");
return false;
}
public static void Login(String user) {
if (LoginBoolean) {
System.out.println("欢迎你 " + user + "\n");
} else {
System.out.println("请注册");
}
}
}运行截图
升级版
import java.io.*;
import java.nio.charset.StandardCharsets;
import java.util.*;
import com.alibaba.fastjson2.JSONObject;
import com.mysql.cj.xdevapi.JsonString;
import org.apache.commons.io.*;
import com.alibaba.fastjson2.JSON;
import com.sun.javafx.collections.MappingChange;
public class Main {
static String biao = "\n********************\n";
static boolean LoginBoolean = false;
static String[] data = new String[2];
//初始化JSON内key-value的个数
static int length = 0;
//用户的登录次数
static int global_login_sum = 0;
//用户随机的幸运数字
static int UserRes;
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
Main.menu(input);
}
public static void Register(Scanner input, String path) {
String user, password;
password = "";
System.out.print("" + biao + "<<请填写个人信息>>\n");
user = input.nextLine();
do {
if (!Objects.equals(user, "")) {
System.out.print("请输入您的密码：");
password = input.nextLine();
} else {
System.out.print("请输入您的名字：");
user = input.nextLine();
}
} while (Objects.equals(user, "") || Objects.equals(password, ""));
if (Json(user, password, path)) {
data[0] = user;
data[1] = password;
LoginBoolean = true;
}
}
public static int getmenuid(Scanner input) {
int id = 0;
try {
id = Integer.parseInt(input.next());
//天坑,未知的死循环呀
//id=input.nextInt();
if (id > 0 && id < 4) {
return id;
} else {
System.out.println("请输入合法数据\n");
}
} catch (Exception e) {
System.out.print("请输入合法数据\n");
}
return 0;
}
public static void menu(Scanner input) {
int id = 0;
String tishi = "菜单\n 1 注册\n 2 登陆\n 3 开奖\n 请输入编号:";
String path = "data.json";
UserRes = (Main.CreatRandom(1))[0];
while (true) {
boolean break_ = true;
System.out.print(tishi);
id = getmenuid(input);
switch (id) {
case 1:
Main.Register(input, path);
break;
case 2:
if (LoginBoolean)
Login(data[0], UserRes);
else {
Main.Register(input, path);
}
break;
case 3:
if (LoginBoolean) {
int[] AllRes = Main.CreatRandom(5);
//断言防止为空报错
break_ = pandaun(UserRes, AllRes);
} else {
System.out.println("您还没登录已跳至登录\n");
Main.Register(input, path);
}
break;
}
//判断输入错误的次数是否大于3
if (global_login_sum >= 3) {
System.out.println("密码错误3次，已退出系统");
break;
}
if (id != 0) {
if (!break_)
break;
System.out.println("是否(y/n)继续");
String temp = input.next();
if (temp != null) {
if (!temp.equals("y") && !temp.equals("n")) {
do {
System.out.println("请输入合法参数\n");
temp = input.next();
} while (!Objects.equals(temp, "y") && !Objects.equals(temp, "n"));
if (temp.equals("n")) {
break;
}
} else {
if (temp.equals("n")) {
break;
}
}
}
}
}
}
public static int[] CreatRandom(int sum) {
int[] random_ = new int[sum];
Random r = new Random();
//随机数产生，【1000~9000+1）
for (int i = 0; i < sum; i++) {
int a = r.nextInt(9000 + 1) + 1000;
random_[i] = a;
}
return random_;
// } else {
// System.out.println("请注册登陆");
// return null;
// }
}
public static boolean pandaun(int UserId, int[] RandomId) {
for (int randomdatum : RandomId) {
if (UserId == randomdatum) {
System.out.println("恭喜你是今天的幸运星");
}
}
System.out.println("很遗憾是你不是今天的幸运星\n欢迎您的下次参与\n");
return false;
}
public static void Login(String user, int UserId) {
if (LoginBoolean) {
System.out.println("欢迎你 " + user + "\n您今天的幸运数字是：" + UserId);
} else {
System.out.println("请注册");
}
}
//增加新用户
public static void AddNewUser(String user, String password, int length, String path) {
File file = new File(path);
//文件读取
String file1 = null;
try {
//以字符串的形式读取出来
file1 = FileUtils.readFileToString(file);
} catch (IOException e) {
throw new RuntimeException(e);
}
//初始化ex变量用于记录用户在JSON文件中的状态
int ex = 0;
//JSON读取
//JSON字符串转转为json对象
JSONObject jsonobject = JSON.parseObject(file1);
//新注册用户数据写入
//加入新元素信息
//最内层的构建
Map map = new HashMap();
map.put(user, password);
//弟2层构建
Map> map2 = new HashMap>();
map2.put(String.valueOf(length + 1), map);
//将构建的数据插入
jsonobject.putAll(map2);
//将json对象转JSON字符串
String jsonstring = JSON.toJSONString(jsonobject);
try {
//重新写入json内容
//new FileOutputStream(file),没有加true就是覆盖重写，加了的话是追加
Writer write = new OutputStreamWriter(new FileOutputStream(file), StandardCharsets.UTF_8);
write.write(jsonstring);
write.flush();
write.close();
} catch (Exception e) {
System.out.println("配置文件写入失败");
}
}
//JSON文件初始化
public static void InitJson(String path) {
File file = new File(path);
// 判断文件是否存在
if (!file.exists()) {
// 创建文件
try {
if (file.createNewFile()) {
System.out.println(path + " 创建成功");
//初始化JSON
String init_json = "{\"data\":{\"user\":\"password\"}}";
try {
Writer write = new OutputStreamWriter(new FileOutputStream(file, true), StandardCharsets.UTF_8);
write.write(init_json);
write.flush();
write.close();
} catch (Exception ignored) {
System.out.println("配置文件初始化失败");
}
}
} catch (IOException e) {
throw new RuntimeException(e);
}
}
}
public static int GetJsonStatus(String user, String password, String path) {
File file = new File(path);
//文件读取
String file1 = null;
try {
//以字符串的形式读取出来
file1 = FileUtils.readFileToString(file);
} catch (IOException e) {
throw new RuntimeException(e);
}
//初始化ex变量用于记录用户在JSON文件中的状态
int ex = 0;
//JSON读取
//JSON字符串转转为json对象
JSONObject jsonobject = JSON.parseObject(file1);
//注意至0
length = 0;
//对JSON对象进行遍历
for (Map.Entry entry : jsonobject.entrySet()) {
//统计原JSON内key-value的个数
length++;
//将用户名，密码的集合存于maptemp中
Map maptemp = (Map) jsonobject.get(entry.getKey());
//获取密码
String json_password = maptemp.get(user);
//如果密码为空说明用户没有注册
if (json_password != null) {
//用户已注册状态
ex = 3;
//密码正确
if (Objects.equals(password, json_password)) {
ex = 1;
}
//密码错误
else {
ex = 2;
}
}
}
return ex;
}
public static boolean Json(String user, String password, String path) {
//JSON文件初始化
InitJson(path);
//获取当前用户的账号状态
int ex = GetJsonStatus(user, password, path);
//对当前用户状态进行筛选
if (ex == 0) {
System.out.println("\n检测到您为新用户\n注册成功！\n");
AddNewUser(user, password, length, path);
LoginBoolean = true;
Login(user, UserRes);
}
if (ex == 1) {
System.out.println("密码正确,正在登陆...\n登录成功！");
return true;
}
if (ex == 2) {
global_login_sum++;
System.out.println("密码不正确\n你还有" + (3 - global_login_sum) + "次机会\n");
return false;
}
if (ex == 3) {
System.out.println("此用户存在已注册\n");
return false;
}
return true;
}
}