Java InputMismatch异常错误

Question

我正在尝试从名为Marathon_Data.txt的文本文件中读取数据，当我运行时，会出现此错误：

“线程中的异常”main“java.util.InputMismatchException” 我们还没有学会如何处理异常，所以到目前为止只使用了抛出IOException。这会导致这个问题吗？  感谢

    import java.io.*;
    import java.util.Scanner;


    public class Marathon 
    {
    final static int SIZE = 5;


    public static void main(String[] args) throws IOException
    {
   int miles[][] = new int[SIZE][7];
   String names[] = new String[SIZE];

   //variables
   int i=0, j=0;
   int totalWeek = 0;
   double average = 0.0;


   //opening file

   File file = new File("Marathon_Data.txt");
   Scanner inputFile = new Scanner(file);

   while (inputFile.hasNext())
   {
     j=0;
     names[i]=inputFile.next();
     while(inputFile.hasNext())
     {
      miles[i][j]=inputFile.nextInt();
      j++;
     }
     i++;
   }



   //Display total miles ran in each week by each runner and their average
   System.out.println("Name          Total Miles       Average");
   for(i=0;i<miles.length;i++)
   { 
     System.out.print(names[i]);
     for(j=0;j<miles[0].length;j++)
     {
     totalWeek +=miles[i][j];
     }
     average = (double)totalWeek / miles[0].length;
     System.out.printf("%d\t\t%.2f\n", totalWeek, average);
     totalWeek = 0;
  }

  }//end main method       

 }//end class