Java Codelab While 语句

Question

有人可以解释为什么当我输入-99时，程序没有停止吗？ 当我第一次输入 -99 时，程序停止，但如果我先输入 1，然后第二次输入 -99，程序不会停止

import java.util.Scanner;

   public class TESTTEST {
       public static void main(String [] args) {
         // creates the scanner
        Scanner input = new Scanner(System.in);

        int number;
        int max=0;
        int min=0;
        int counter = 0;

        System.out.print("Enter an integer (-99 to stop): ");
          number = input.nextInt();
          {
while (number != -99) {
    System.out.print("Enter an integer (-99 to stop): ");
          number = input.nextInt();

         if (number> max ){
             number = max;  
         }
          else if (number<max ) {
                 number = min;
           }
        }

        System.out.println("max value is " +max);
        System.out.println("min value is "+min);

    }
}
   }

Answer 1

您颠倒了数字和max/min

if (number> max ){
         number = max;  //Since max = 0, number turns into 0
     }
      else if (number<max ) {
             number = min; //Same thing here
       }
    }

    System.out.println("max value is " +max);
    System.out.println("min value is "+min);

}

切换它们:

if (number> max ){
         max = number;
     }
      else if (number<max ) {
             min= number;
       }
    }

    System.out.println("max value is " +max);
    System.out.println("min value is "+min);

}