java - 最小/最大值无故改变

Question

这个问题我绞尽脑汁也想不出来。当从用户输入的数字数组中计算出最小值和最大值时，最小值会在第 4 次或第 5 次迭代时更改为不是最小值的数字。我一直试图慢慢地浏览并看看发生了什么，但也许我已经关注这个问题太久了。任何帮助将不胜感激。

 public class average2
 {
    public static void main (String [] args)  
    {      


    double[] scores   = new double [25];
    double max= 0 ;
    double min = 0;
    int count = 0;
    double sum = 0;
    double score= 0;
    double average = 0; 
    int    i;


   while ((count < 25)&&((score=IO.readDouble("Enter Scores, -1 to   Quit"))  >0))      
   {  {scores[count++]=score;}


         min= scores[0];
         max = scores[0];  
        for (i=0;i<scores.length; i++)    
        if (score > max)
           { max = score;
           min = min;}
        if (score < min)
           { min = score;}


         sum = sum + score;      
         average = sum /scores.length;


              System.out.println(score); //this line is for testing purposes only 
              System.out.println("Max is " + max);
              System.out.println("Min is " + min);
              System.out.println("The sum of the scores is " + sum);
              System.out.println("The average of the scores is " + average);



              count = count + 1;

     }// end while loop


  }// end main                    

}//end class            

Answer 1

请始终记住，如果您不使用 {}，则 for 中将仅运行一行代码。因此，良好的编码风格是始终使用 {}!

for (i=0;i<scores.length; i++){
    if (score > max) { max = score; min = min;} 
    if (score < min) { min = score;}
}