猜數小游戲（IO流實作，對IO流進行加強理解運用）

前言

猜數小游戲的設計比較簡單，下圖是設計的邏輯代碼塊，其中的info是用戶的資訊，里面的資訊主要有密碼，賬戶余額，以及次數，用IO流的相關知識完成實作的，其中CMUtility以及TSUtility是自己寫的工具包，可以不用管，

一、設計簡單的猜數游戲

1.游戲內容

隨機生成數字，讓我們去猜，如果大的話就提示（你輸入的數字大了），如果輸入的數字比猜的數字小的話就提示（你輸入的數字小了），如果相等的話就提示（你真他娘的是個天才，猜對了）如此的進行猜測數字，直到猜對為止

package TheGamePackage;
import java.util.Random;
import java.util.Scanner;

import static TheGamePackage.TSUtility.readKeyBoard;

public class Game {
    public static void gamenumber(){
        Scanner sc=new Scanner(System.in);
        Random r=new Random();
        boolean a=true;
        int i = r.nextInt(100) + 1;
        while (a){
            System.out.println("測驗數字："+i);
            System.out.println("請輸入你要猜的數字(1-100)");
            int i1 = readInt();
            if (i1>100||i1<1){
                System.out.println("你的輸入有誤");
            }else if (i1>i){
                System.out.println("你輸入的數字大了");
            }else if (i1<i){
                System.out.println("你輸入的數字小了");
            }else{
                System.out.println("你真他娘的是個天才，猜的數字為："+i);
                a=false;
            }
        }
    }

    public static int readInt() {
        int n;
        for (; ; ) {
            String str = readKeyBoard(3, false);
            try {
                n = Integer.parseInt(str);
                break;
            } catch (NumberFormatException e) {
                System.out.print("數字輸入錯誤，請重新輸入：");
            }
        }
        return n;
    }
}

二、猜數游戲邏輯及實作

1.需要實作的邏輯

首先是登陸賬戶，如果沒有賬戶的話就創建賬戶，然后用賬戶以及密碼去登陸賬戶，新賬戶有一次的免費游玩的機會，如果機會用完就會提示是否充值，如果不充值的話就是退出游戲，如果充值的話就會的到免費贈送的次數以及自己充值的金錢，然后繼續游玩，賬戶的資訊里面是有金錢數以及密碼和次數的變化的，整個程序用IO流實作的，

2.代碼實作

main代碼

package TheGamePackage;

import java.io.*;
import java.util.*;

public class GamePlay {
    public static void main(String[] args) throws IOException{
        Menu();
    }
    public static void Menu() throws IOException {
        boolean b=true;
        while (b){
            System.out.println("1.登陸賬號----->開始猜數游戲");
            System.out.println("2.修改密碼");
            System.out.println("3.猜拳小游戲");
            System.out.println("4.贊助作者");
            System.out.println("5.退出游戲");
            int a= CMUtility.readMenuSelection();
            switch (a){
                case '1':
                    Log();
                    break;
                case '2':
                    change();
                    break;
                case '3':
                    guessmethod();
                    break;
                case '4':
                    new PayView();
                    break;
                case '5':
                    System.out.println("確定退出（Y/y）,再考慮一下（N/n）");
                    char c = CMUtility.readConfirmSelection();
                    if (c=='Y'||c=='y'){
                        System.out.println("感謝使用，拜拜");
                        b=false;
                        System.exit(0);
                    }

            }
        }

    }

創建一個guessmethod類

 public static void guessmethod() throws IOException {
        Scanner sc=new Scanner(System.in);
        Random r=new Random();
        //系統自動出的
        ArrayList<String> arrayList=new ArrayList<>();
        arrayList.add("石頭");
        arrayList.add("剪刀");
        arrayList.add("布");
        //我出的
        System.out.println("請輸入你要出的（石頭，剪刀，布）");
        String s = TSUtility.readKeyBoard(2, false);
        if (!s.equals("石頭")&&!s.equals("剪刀")&&!s.equals("布")){
            System.out.println("你的輸入有誤");
            guessmethod();
        }else {
            int i = r.nextInt(3);
            if (arrayList.get(i).equals("石頭")&&s.equals("石頭")){
                System.out.println("平局");
            }else if (arrayList.get(i).equals("石頭")&&s.equals("剪刀")){
                System.out.println("很遺憾，輸了");
            }else if (arrayList.get(i).equals("石頭")&&s.equals("布")){
                System.out.println("恭喜你，贏了");
            }else if (arrayList.get(i).equals("剪刀")&&s.equals("石頭")){
                System.out.println("恭喜你，贏了");
            }else if (arrayList.get(i).equals("剪刀")&&s.equals("剪刀")){
                System.out.println("平局");
            }else if (arrayList.get(i).equals("剪刀")&&s.equals("布")){
                System.out.println("很遺憾，輸了");
            }else if (arrayList.get(i).equals("布")&&s.equals("石頭")){
                System.out.println("很遺憾，輸了");
            }else if (arrayList.get(i).equals("布")&&s.equals("剪刀")){
                System.out.println("恭喜你，贏了");
            }else if (arrayList.get(i).equals("布")&&s.equals("布")){
                System.out.println("平局");
            }
            System.out.println("繼續玩？y/n");
            char c = CMUtility.readConfirmSelection();
            if (c=='Y'||c=='y'){
                guessmethod();
            }else {
                Menu();
            }
        }


    }

創建一個Log類

 public static void Log() throws IOException{
        Scanner sc=new Scanner(System.in);
        System.out.println("請輸入你的賬號(最多六位)");
        String name=TSUtility.readKeyBoard(6,false);
        File f2=new File("E:\\javawork\\dierguan\\src\\TheGamePackage\\Info");
        File[] files = f2.listFiles();
        int ren=0;
        int mianfei=1;
        for (File f:files
        ) {
            if (f.getName().equals(name)){
                ren++;
            }
        }
        if (ren==0){
            System.out.println("沒有你的賬戶，請注冊");
            System.out.println("請輸入你的密碼");
            int i = CMUtility.readInt();
            Properties p1=new Properties();
            p1.setProperty("money","0");
            p1.setProperty("password",String.valueOf(i));
            p1.setProperty("count",String.valueOf(mianfei));
            File f1=new File("E:\\javawork\\dierguan\\src\\TheGamePackage\\Info",name);
            BufferedWriter bu1=new BufferedWriter(new FileWriter(f1));
            p1.store(bu1,null);
    }else {
            File f3=new File("E:\\javawork\\dierguan\\src\\TheGamePackage\\Info",name);
            BufferedReader bu2=new BufferedReader(new FileReader(f3));
            Properties p2=new Properties();
            p2.load(bu2);
            bu2.close();
            System.out.println("請輸入你的密碼");
            int i1 = CMUtility.readInt();
            if (p2.getProperty("password").equals(String.valueOf(i1))){
                youwan1(name);
            } else {
                System.out.println("密碼錯誤");
                Log();

            }
             }
        }

創建一個youwan1類

public static void youwan1(String name) throws IOException{
            File f3=new File("E:\\javawork\\dierguan\\src\\TheGamePackage\\Info",name);
            BufferedReader bu2=new BufferedReader(new FileReader(f3));
            Properties p2=new Properties();
            p2.load(bu2);
            bu2.close();
            Set<String> strings = p2.stringPropertyNames();
            System.out.println("歡迎"+name);
            System.out.println("你的余額為："+p2.getProperty("money")+"元");
            System.out.println("你的游玩次數還有"+p2.getProperty("count")+"次");
            String count1= p2.getProperty("count");
            String money = p2.getProperty("money");
            if (Integer.parseInt(count1)>0){
                System.out.println("繼續游玩？y/n");
                char c = CMUtility.readConfirmSelection();
                if (c=='Y'||c=='y'){
                    Game.gamenumber();
                    BufferedReader bu3=new BufferedReader(new FileReader(f3));
                    Properties p3=new Properties();
                    p3.load(bu3);
                    int cishu = Integer.parseInt(p3.getProperty("count"));
                    cishu--;
                    Properties p4=new Properties();
                    for (String s1:strings
                    ) {
                        if (s1.equals("count")){
                            p4.setProperty(s1,String.valueOf(cishu));
                        }else {
                            p4.setProperty(s1,p3.getProperty(s1));
                        }
                    }
                    bu3.close();
                    BufferedWriter bu4=new BufferedWriter(new FileWriter(f3));
                    p4.store(bu4,null);
                    bu4.close();
                }else {
                    Menu();
                }
                youwan1(name);
            } else if (Integer.parseInt(count1)<=0&& Integer.parseInt(money)==0){
                System.out.println("你的余額以及次數不足");
                System.out.println("繼續游玩？y/n");
                char c = CMUtility.readConfirmSelection();
                if (c=='Y'||c=='y'){
                    chongzhi(name);
                    System.out.println("繼續游玩？y/n");
                    char c2 = CMUtility.readConfirmSelection();
                    if (c2=='Y'||c2=='y'){
                        Game.gamenumber();
                        BufferedReader bu3=new BufferedReader(new FileReader(f3));
                        Properties p3=new Properties();
                        p3.load(bu3);
                        int cishu = Integer.parseInt(p3.getProperty("count"));
                        cishu--;
                        Properties p4=new Properties();
                        for (String s1:strings
                        ) {
                            if (s1.equals("count")){
                                p4.setProperty(s1,String.valueOf(cishu));
                            }else {
                                p4.setProperty(s1,p3.getProperty(s1));
                            }
                        }
                        bu3.close();
                        BufferedWriter bu4=new BufferedWriter(new FileWriter(f3));
                        p4.store(bu4,null);
                        bu4.close();
                        youwan1(name);
                    }else {
                        Menu();
                    }
                }else {
                    Menu();
                }
            }else if (Integer.parseInt(count1)<=0&& Integer.parseInt(money)>0) {
                System.out.println("繼續玩y/n？");
                char c = CMUtility.readConfirmSelection();
                if (c == 'Y' || c == 'y') {
                    System.out.println("繼續玩y/n？注意100一次喲");
                    char c4 = CMUtility.readConfirmSelection();
                    if (c4 == 'Y' || c4 == 'y') {
                        youwan2(name);
                        youwan1(name);
                    } else {
                        Menu();
                    }
                }
            }
        }

創建一個youwan2類

public static void youwan2(String name) throws IOException{
        //當沒有次數是消費錢
        File f3=new File("E:\\javawork\\dierguan\\src\\TheGamePackage\\Info",name);
        BufferedReader bu2=new BufferedReader(new FileReader(f3));
        Properties p2=new Properties();
        p2.load(bu2);
        bu2.close();
        Set<String> strings = p2.stringPropertyNames();
        Game.gamenumber();
        BufferedReader bu3=new BufferedReader(new FileReader(f3));
        Properties p3=new Properties();
        p3.load(bu3);
        int cishu = Integer.parseInt(p3.getProperty("money"));
        cishu=cishu-100;
        Properties p4=new Properties();
        for (String s1:strings
        ) {
            if (s1.equals("money")){
                p4.setProperty(s1,String.valueOf(cishu));
            }else {
                p4.setProperty(s1,p3.getProperty(s1));
            }
        }
        bu3.close();
        BufferedWriter bu4=new BufferedWriter(new FileWriter(f3));
        p4.store(bu4,null);
        bu4.close();
    }

創建一個zhongzhi類

public static void chongzhi(String name) throws IOException{
        File f1=new File("E:\\javawork\\dierguan\\src\\TheGamePackage\\Info",name);
            System.out.println("余額不足，是否充值y/n");
            char c1 = CMUtility.readConfirmSelection();
            if (c1=='Y'||c1=='y'){
                System.out.println("充值100送5次");
                System.out.println("充值200送7次");
                System.out.println("充值300送8次");
                System.out.println("充值400送9次");
                System.out.println("充值500送15次");
                System.out.println("請輸入你要充值的金額");
                int i = CMUtility.readInt();
                if (i!=100&&i!=200&&i!=300&&i!=400&&i!=500){
                    System.out.println("金額輸入錯誤");
                    chongzhi(name);
                }else if (i==100){
                    BufferedReader bu2=new BufferedReader(new FileReader(f1));
                    Properties p2=new Properties();
                    p2.load(bu2);
                    Set<String> names = p2.stringPropertyNames();
                    Properties p1=new Properties();
                    bu2.close();
                    for (String s:names
                    ) {
                        if (s.equals("count")){
                            p1.setProperty(s,String.valueOf(5));
                        }else{
                            p1.setProperty(s,p2.getProperty(s));
                        }
                    }
                    p1.setProperty("money","100");
                    BufferedWriter bu1=new BufferedWriter(new FileWriter(f1));
                    p1.store(bu1,null);
                    bu1.close();

                }else if (i==200){
                    BufferedReader bu3=new BufferedReader(new FileReader(f1));
                    Properties p3=new Properties();
                    p3.load(bu3);
                    Set<String> names = p3.stringPropertyNames();
                    Properties p4=new Properties();
                    bu3.close();
                    for (String s:names
                    ) {
                        if (s.equals("count")){
                            p4.setProperty(s,String.valueOf(7));
                        }else{
                            p4.setProperty(s,p3.getProperty(s));
                        }
                    }
                    p4.setProperty("money","200");
                    BufferedWriter bu1=new BufferedWriter(new FileWriter(f1));
                    p4.store(bu1,null);
                    bu1.close();
                }else if (i==300){
                    BufferedReader bu2=new BufferedReader(new FileReader(f1));
                    Properties p2=new Properties();
                    p2.load(bu2);
                    Set<String> names = p2.stringPropertyNames();
                    Properties p1=new Properties();
                    bu2.close();
                    for (String s:names
                    ) {
                        if (s.equals("count")){
                            p1.setProperty(s,String.valueOf(8));
                        }else{
                            p1.setProperty(s,p2.getProperty(s));
                        }
                    }
                    p1.setProperty("money","300");
                    BufferedWriter bu1=new BufferedWriter(new FileWriter(f1));
                    p1.store(bu1,null);
                    bu1.close();
                }else if (i==400){
                    BufferedReader bu2=new BufferedReader(new FileReader(f1));
                    Properties p2=new Properties();
                    p2.load(bu2);
                    Set<String> names = p2.stringPropertyNames();
                    Properties p1=new Properties();
                    bu2.close();
                    for (String s:names
                    ) {
                        if (s.equals("count")){
                            p1.setProperty(s,String.valueOf(9));
                        }else{
                            p1.setProperty(s,p2.getProperty(s));
                        }
                    }
                    p1.setProperty("money","400");
                    BufferedWriter bu1=new BufferedWriter(new FileWriter(f1));
                    p1.store(bu1,null);
                    bu1.close();
                }else if (i==500){
                    BufferedReader bu2=new BufferedReader(new FileReader(f1));
                    Properties p2=new Properties();
                    p2.load(bu2);
                    Set<String> names = p2.stringPropertyNames();
                    Properties p1=new Properties();
                    bu2.close();
                    for (String s:names
                    ) {
                        if (s.equals("count")){
                            p1.setProperty(s,String.valueOf(15));
                        }else{
                            p1.setProperty(s,p2.getProperty(s));
                        }
                    }
                    p1.setProperty("money","500");
                    BufferedWriter bu1=new BufferedWriter(new FileWriter(f1));
                    p1.store(bu1,null);
                    bu1.close();
                }
            }else {
                Menu();
            }

    }

以上就是具體的代碼的實作

3.需要注意的問題

需要進行條件的判斷
1.當次數=0且余額！=0時就要判斷是否用余額去玩耍，需要規定多少錢玩一次，
2.當次數=0且余額=0是就要判斷是否進行充值，充值的時候就要注意規定的充值金額，其余的金額無法充值，
3.當次數！=0時就正常的玩耍

三、猜拳小游戲

1.代碼實作

public static void guessmethod() throws IOException {
        Scanner sc=new Scanner(System.in);
        Random r=new Random();
        //系統自動出的
        ArrayList<String> arrayList=new ArrayList<>();
        arrayList.add("石頭");
        arrayList.add("剪刀");
        arrayList.add("布");
        //我出的
        System.out.println("請輸入你要出的（石頭，剪刀，布）");
        String s = TSUtility.readKeyBoard(2, false);
        if (!s.equals("石頭")&&!s.equals("剪刀")&&!s.equals("布")){
            System.out.println("你的輸入有誤");
            guessmethod();
        }else {
            int i = r.nextInt(3);
            if (arrayList.get(i).equals("石頭")&&s.equals("石頭")){
                System.out.println("平局");
            }else if (arrayList.get(i).equals("石頭")&&s.equals("剪刀")){
                System.out.println("很遺憾，輸了");
            }else if (arrayList.get(i).equals("石頭")&&s.equals("布")){
                System.out.println("恭喜你，贏了");
            }else if (arrayList.get(i).equals("剪刀")&&s.equals("石頭")){
                System.out.println("恭喜你，贏了");
            }else if (arrayList.get(i).equals("剪刀")&&s.equals("剪刀")){
                System.out.println("平局");
            }else if (arrayList.get(i).equals("剪刀")&&s.equals("布")){
                System.out.println("很遺憾，輸了");
            }else if (arrayList.get(i).equals("布")&&s.equals("石頭")){
                System.out.println("很遺憾，輸了");
            }else if (arrayList.get(i).equals("布")&&s.equals("剪刀")){
                System.out.println("恭喜你，贏了");
            }else if (arrayList.get(i).equals("布")&&s.equals("布")){
                System.out.println("平局");
            }
            System.out.println("繼續玩？y/n");
            char c = CMUtility.readConfirmSelection();
            if (c=='Y'||c=='y'){
                guessmethod();
            }else {
                Menu();
            }
        }


    }

2.代碼解讀

其實這個很簡單，沒有用到IO流的相關的知識，就是把剪刀，石頭，布，放在List的集合中，然后隨機的取出與自己鍵盤輸入的進行比較

四、修改密碼

首先時判斷是否有賬戶，如果有的話就進行密碼的修改，如果，沒有的話就無法修改

 public static void change()throws IOException{
        System.out.println("請輸入你要修改的賬號名(最多六位)");
        String name=TSUtility.readKeyBoard(6,false);
        File f1=new File("E:\\javawork\\dierguan\\src\\TheGamePackage\\Info",name);
        //File f2=new File("E:\\javawork\\dierguan\\src\\TheGamePackage\\Info",name);
        if (!f1.exists()){
            System.out.println("賬戶不存在");
            System.out.println("繼續修改y/n？");
            char c = CMUtility.readConfirmSelection();
            if (c == 'Y' || c == 'y') {
                change();
                } else {
                    Menu();
                }
        }else {
            BufferedReader bu1=new BufferedReader(new FileReader(f1));
            Properties p1=new Properties();
            p1.load(bu1);
            System.out.println("請輸入你的新密碼");
            int i = TSUtility.readInt();
            Set<String> names = p1.stringPropertyNames();
            Properties p2=new Properties();
            for (String s:names
            ) {
                if (s.equals("password")){
                    p2.setProperty(s,String.valueOf(i));
                }else {
                    p2.setProperty(s,p1.getProperty(s));
                }
            }
            BufferedWriter bu2=new BufferedWriter(new FileWriter(f1));
            p2.store(bu2,null);
            bu1.close();
            bu2.close();

        }


    }

總結

IO流的相關知識我已經在上一篇的博客中進行了總結，這里是對IO流的相關的知識進行運用，對IO流的相關知識更加的牢固