如果我的while循环成功，如何使最后一行不打印？

Question

我在项目的最后一步，只有一个小错误，我似乎无法解决。

我的目标是不打印“到目前为止的知识：” + idk）行；如果while循环完成。

我试图将其移动到不同的行，但是似乎没有任何用处。

    char guess = getGuess(console);
    String idk = replaceBlanks(secretWord, blanks, guess);
    System.out.println("Your knowledge so far: " + idk);
    int counter = 1;
    while (!(idk.equals(secretWord))) {
        counter ++;

        guess = getGuess(console);

        idk = replaceBlanks(secretWord, idk, guess);
     System.out.println("Your knowledge so far: " + idk);

    }
    System.out.println("Congratulations, you discovered the word " +  "\"" + idk + "\"" + "!");
    System.out.println("It took you " + counter + " guesses.");

  }
}

已执行

Your knowledge so far: _______
Guess a letter: r
Your knowledge so far: R_____R
Guess a letter: a
Your knowledge so far: RA___AR
Guess a letter: c
Your knowledge so far: RAC_CAR
Guess a letter: e
Congratulations, you discovered the word "RACECAR"!
It took you 4 guesses.

实际

Your knowledge so far: _______
Guess a letter: r
Your knowledge so far: R_____R
Guess a letter: a
Your knowledge so far: RA___AR
Guess a letter: c
Your knowledge so far: RAC_CAR
Guess a letter: e
Your knowledge so far: RACECAR    <<<<<<<<<<<<-------
Congratulations, you discovered the word "RACECAR"! 
It took you 4 guesses.

Answer 1

最简单的方法是：

while (!(idk.equals(secretWord))) {
  counter ++;

  guess = getGuess(console);

  idk = replaceBlanks(secretWord, idk, guess);
  if (!idk.equals(secretWord)) {
    System.out.println("Your knowledge so far: " + idk);
  }
}
System.out.println("Congratulations, you discovered the word " +  "\"" + idk + "\"" + "!")
System.out.println("It took you " + counter + " guesses.");

在打印之前只需检查条件是否满足

Answer 2

char guess = getGuess(console);
String idk = replaceBlanks(secretWord, blanks, guess);
System.out.println("Your knowledge so far: " + idk);
int counter = 1;
while (!(idk.equals(secretWord))) {
    counter ++;
    System.out.println("Your knowledge so far: " + idk);

    guess = getGuess(console);

    idk = replaceBlanks(secretWord, idk, guess);

}
System.out.println("Congratulations, you discovered the word " +  "\"" + idk + "\"" + "!");
System.out.println("It took you " + counter + " guesses.");

}

Answer 3

很酷……这样做：

char guess = getGuess(console);
String idk = replaceBlanks(secretWord, blanks, guess);
System.out.println("Your knowledge so far: " + idk);
int counter = 1;
while (true) {
    counter ++;

    guess = getGuess(console);

    idk = replaceBlanks(secretWord, idk, guess);
if( idk.equals(secretWord)) break ;
 System.out.println("Your knowledge so far: " + idk);

   }
    System.out.println("Congratulations, you discovered the word 
" +  "\"" + idk + "\"" + "!");
System.out.println("It took you " + counter + " guesses.");

}

因此，一旦您意识到满足停止条件，便可以从根本上打破循环。您确实调用了guess（）函数，但是在打印语句之前就跳出了循环。

Answer 4

您可以将其翻转为do ... while循环。

// not sure about this... idk should look like "_____" at this point.
String idk = replaceBlanks(secretWord,blanks,null);
int counter = 0;
do {
    System.out.println("Your knowledge so far: " + idk);
    counter ++;
    guess = getGuess(console);
    idk = replaceBlanks(secretWord, idk, guess);
} while (!(idk.equals(secretWord)));
System.out.println("Congratulations, you discovered the word " +  "\"" + idk + "\"" + "!");