隨機數發生器HiLo遊戲

我有一個關於這個HiLo遊戲的真正快速的問題。當我去測試它時，除非我想讓它顯示他們猜測了多少次嘗試，否則一切正常。我想說的是，它不會計算最初的猜測，而是計算它後面的那個，所以它顯示的是一個比實際更少的猜測。這是我的代碼。隨機數發生器HiLo遊戲

編輯：我有另一個快速的問題。我希望程序不要猜測它是否超出了從0到10的範圍。我將如何去做，因爲當我運行程序時，它會將猜測算作我的一個嘗試。

import java.util.Random;  // Random number generator class 
 
import java.util.Scanner; // reads user inputs 
 

 
public class HiLo 
 
{ 
 
\t public static void main (String[] args) 
 
\t { 
 
\t \t //declare variables 
 
\t \t final int MAX = 10; 
 
\t \t int answer, guess; 
 
\t \t int numberOfTries = 0 ; 
 
\t \t String again; 
 

 
\t \t Scanner Keyboard = new Scanner(System.in); 
 

 
\t \t do 
 

 
\t \t { 
 
\t \t \t System.out.print (" I'm thinking of a number between 0 and " 
 
\t \t \t + MAX + ". Guess what it is: "); 
 
\t \t \t guess = Keyboard.nextInt(); 
 
\t \t \t //guess 
 
\t \t \t Random generator = new Random(); //Random number generator. 0 to 10. 
 
\t \t \t answer = generator.nextInt(MAX) +1; 
 

 
\t \t \t if (guess > 10)//if guess is bigger than 10 then error message 
 
\t \t \t { 
 
\t \t \t System.out.println ("ERROR – Your guess is out of the range 0 to 10."); 
 
\t \t \t } 
 
\t \t \t if (guess < 0)//if guess is smaller than 0 then error message 
 
\t \t \t { 
 
\t \t  System.out.println ("ERROR – Your guess is out of the range 0 to 10."); 
 
\t \t \t } 
 

 
\t \t \t while (guess != answer)//If guess is not the answer 
 
\t \t \t { 
 

 
\t \t \t if (guess > answer)//If guess is more than the answer 
 
\t \t \t { 
 
\t \t \t System.out.println ("You guessed too high! \nTry again:"); 
 
\t \t \t guess = Keyboard.nextInt(); 
 
\t \t \t } 
 

 
\t \t \t if (guess < answer)//If guess is less than the answer 
 
\t \t \t { 
 
\t \t \t System.out.println ("Too Low! \nTry again:"); 
 
\t \t \t guess = Keyboard.nextInt(); 
 
\t \t \t } 
 

 
\t \t \t numberOfTries=numberOfTries+1; 
 

 
\t \t \t }//end of the loop 
 

 
\t \t \t // display result 
 
\t \t \t if (guess == answer) 
 
\t \t \t { 
 
\t \t \t numberOfTries += 1; 
 
\t \t \t System.out.println ("YOU WIN!"); 
 
\t \t \t System.out.println("It took you " + numberOfTries + " tries!") ; 
 
\t \t \t System.out.println(); 
 
\t \t \t System.out.print("Do you want to play again(Y/N)?"); 
 
\t \t \t } 
 

 

 
\t \t \t Keyboard.nextLine(); // skip over enter key 
 
\t \t \t again = Keyboard.nextLine(); 
 

 
\t \t \t numberOfTries=0; 
 

 

 

 
\t \t }while (again.equalsIgnoreCase ("Y")); 
 

 

 

 
\t } // end of class 
 

 
} //end of main

謝謝！

來源

2014-10-20 jugo

我建議閱讀標籤維基以瞭解它在使用它之前是什麼。 [tag：hilo]不是爲了這個目的。 – Mephy 2014-10-20 22:11:00

你應該把numberOfTries + = 1裏面，如果（猜答案==），這樣一來它計算的正確答案以及

if (guess == answer) 
     { 
     numberOfTries += 1; // <--- This adds the final guess 
     System.out.println ("YOU WIN!"); 
     System.out.println("It took you " + numberOfTries + " tries!") ; 
     System.out.println(); 
     System.out.print("Do you want to play again(Y/N)?"); 
     }

來源

2014-10-20 22:04:38 Evald

你是什麼意思？ – jugo 2014-10-20 22:10:46

我已經複製了一些代碼，以便於理解。我編輯了這篇文章，所以你可以看到我在說的是哪一行。 – Evald 2014-10-20 22:13:18

沒關係，很有用，非常感謝！ – jugo 2014-10-20 22:15:47

當你初始化它，並重新設置應設置numberOfTries 1，這樣它已經考慮到在進入while (guess != answer)循環之前的第一個猜測

來源

2014-10-20 22:08:51

隨機數發生器HiLo遊戲

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