java - 试图制作控制台应用程序猜谜游戏？我的逻辑正确吗？

Question

我的“If”语句没有给我写答案，例如，如果我输入“5”，它会打印得太高，这意味着随机数较低，但如果我输入一个较低的数字，如“4”，它也会打印low 这意味着随机数更高。它非常令人困惑，我只是想知道我在代码中的逻辑是否正确？

导入java.util.Scanner； 导入 java.lang.Math;

公开课GuessTest {

public static void main(String[] args) 
{
   System.out.println("Welcome to the gussing game, Try to guess the number am thinking of to win!");
   System.out.println("++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++");
   System.out.println();

    System.out.println("Am thinking of a number between 0 and 10. Try to guess it.");
    System.out.println();

   Scanner sc = new Scanner(System.in);
   String choice =  "y";

   while (!choice.equalsIgnoreCase("n"))
   {

     System.out.println("Enter the Number:");
       int guess = sc.nextInt();
       double rightNum = Math.random() *10;
       int randomNum = (int) rightNum;


       if (guess == randomNum)
       {
           System.out.println("Correct you've got it! The Number Was " + randomNum );
           System.out.println();
           System.out.println("Would you like to play again (y/n):");
           choice = sc.next();
       }
     else  if (guess < randomNum)
       {
           System.out.println("your too low!");
       }
     else if (guess > randomNum)
       {
            System.out.println("Your too high!");
       }   

}

}
}   

Answer 1

您在每次 while-loop 迭代中计算随机数。只需将计算代码移出循环即可计算一次:

double rightNum = Math.random() *10;
int randomNum = (int) rightNum;
while (!choice.equalsIgnoreCase("n")) {
    //your logic...
}

---

由于要进行多轮游戏，可以在接受新游戏时重新计算随机数:

double rightNum = Math.random() *10;
int randomNum = (int) rightNum;
while (!choice.equalsIgnoreCase("n")) {
    //your logic...
    if (guess == randomNum) {
        System.out.println("Correct you've got it! The Number Was " + randomNum );
        System.out.println();
        System.out.println("Would you like to play again (y/n):");
        choice = sc.nextLine();
        if (choice.equalsIgnoreCase("y")) {
            rightNum = Math.random() *10;
            randomNum = (int) rightNum;
        }
    }
    //your logic...
}