猜測遊戲Java

Question

我正在寫一個遊戲，讓用戶猜測隨機生成的數字。最後它會顯示正確的總數和這些正確數字的總和。但是，我無法顯示用戶擁有的正確數字的正確總和。有人可以幫我弄這個嗎？謝謝！

public static void main(String[] args) { 
    Random rng = new Random(); 
    Scanner consoleScanner = new Scanner(System.in); 
    String inputString; 
    int answer = rng.nextInt(90000) + 10000, sum, numberCorrect; 
    System.out.print("I have randomly chosen a 5-digit code for you to guess.\n" 
      + "Each time you guess, I will tell you how many digits are correct and the sum of the digits that are correct.\n" 
      + "For example, if the number is \"68420\" and you guess 12468, I will respond:\n" 
      + "Number of Digits Correct: 1\n" + "Sum of Digits Correct : 4\n" 
      + "From deduction, you will know the 4 was correct in the guess.\n\n" 
      + "Now its your turn..................................................................\n" + "answer = " 
      + answer); 
    do { 
     System.out.print("\nPlease enter a 5-digit code (your guess): "); 
     inputString = consoleScanner.nextLine(); 
     numberCorrect = 0; 
     sum = 0; 
     if (inputString.length() != 5) { 
      System.out.println("Please enter 5-digit code only."); 
      System.exit(0); 
     } 
     for (int i = 0; i < 5; i++) { 
      String answerString = String.valueOf(answer); 
      if (inputString.charAt(i) == answerString.charAt(i)) { 
       numberCorrect++; 
       char digit = answerString.charAt(i); 
       sum += digit; 
      } 
     } 
     System.out.println("Number of Digits Correct: " + numberCorrect + "\nSum of Digits Correct: " + sum); 
    } 
    while (numberCorrect < 5); 
    System.out.println("****HOORAY! You solved it. You are so smart****"); 
} 

Answer 1

你有你的字符轉換成數值：

sum += Character.getNumericValue(digit); 

Answer 2

你的總和變量是整數，而您試圖將其添加到CHAR（數字）。您需要將字符轉換爲有效的int，然後將其添加到sum中。

以下參考資料可能對您有所幫助！

Java: parse int value from a char

或

Converting characters to integers in Java