急 ~ java写猜数字游戏(几A几B那种)(已有附程式码)

老师在上课有讲解了以下的部分

但说得很快 XDD

要我们说明程式码及修改以下程式码Number  Guess Game.java 部分的黑色粗框 for

来完成完整版的4位数猜数字游戏

1. 可由使用者选择所欲猜测的数字有几位
2. 使用者可查询过去所输入的猜测
3. 电脑可提供提示 (例如 : 1A2B)
4. 游戏排行榜
而这个猜数字的游戏 包含了 Number  Guess Game.java   / Answer.java  及 Main.java三个部分

(主要是修改Number  Guess Game.java 部分及在执行时能印出步骤说明   例如: 你猜错了 继续加油 )

Number  Guess Game.java 部分

package numberguessgame;
import java.util.Scanner;
import java.io.*;
import java.util.Vector;
import java.util.Random;
public class NumberGuessGame {
    private int numberOfDigits;
    private boolean isDupDigits=true;
    int count=1;
    Answer lastAnswer=null;
    Vector possibleAnswerSet;

    NumberGuessGame()
    {
       this(4);
    } 
   
    NumberGuessGame(int d)
    {
       setNumberOfDigits(d);
       possibleAnswerSet = new Vector();
    }
    public Answer generateAnswer()
    {
        Answer temp = new Answer(numberOfDigits);
        temp.generate();
      //  System.out.println(temp.answer);
        return temp;
    }
    public void start(Answer answer)
    {
        boolean exit=false;
        Answer userGuess;
        String outStr=null;

        while(!exit && (count<100))
        {
            System.out.println("------------------------");
            System.out.println("(" + count + ")");
          
          //  userGuess = getUserGuess();
            userGuess = generateGuess(answer, outStr);
            outStr = compare(userGuess,answer);
            System.out.println(outStr);
            if(outStr.equals("" + this.numberOfDigits + "A0B"))
                exit=true;
            count++;
        }
        System.out.println("Game Over");
    }
    public Answer generateGuess(Answer answer, String outStr)
    {
        Answer temp = new Answer(this.numberOfDigits);

        System.out.print("Please Input Your Guess:");
        if(count==1)
        {
            temp = generateAnswer();
            lastAnswer = temp;
            return temp;
        }
        else if(count==2)
        {
            Answer a = generateAnAnswer(answer, outStr);
            lastAnswer =a;
            System.out.println(a.answer);
            return a;
        }
   ..

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