error: Exception in thread "main" java.util.InputMismatchException

[jimgym1989]

I dont get it..why is the error: Exception in thread "main" java.util.Input MismatchExcepti on
this is my code

/**
 * @(#)textFileRead.java
 *
 *
 * @author 
 * @version 1.00 2008/10/17
 */

import java.io.*;
import java.util.*;	
public class Adamos {
	
static Scanner console = new Scanner(System.in);

    public static void main(String[]args) throws FileNotFoundException
    	{
    		
    	Scanner inFile = new Scanner("C:\\Documents and Settings\\elson.KINGJIM\\Desktop\\grade.txt");
    	
    	int num,count=0;
    	double tot=0.0;
    	num = inFile.nextInt();
    	
    	double sum = 0.0;
    	double sort[] = new double[num];
    	double grade[] = new double[num+1];
    	
    
    	for(int i=0;i<num;i++)
    	{
    		int temp = 0;
    		
    		String frstName =inFile.next();
    		String lstName = inFile.next();
    		double g1 = inFile.nextDouble();
    		grade[temp++] = g1;
    		double g2 = inFile.nextDouble();
    		grade[temp++] = g2;
    		double g3 = inFile.nextDouble();
    		grade[temp++] = g3;
    		double g4 = inFile.nextDouble();
    		grade[temp++] = g4;
    		double g5 = inFile.nextDouble();
    		grade[temp++] = g5;
  			
    		tot=g1+g2+g3+g4+g5;
    		sum=tot/temp;
    	
    	
    	if(sum>=75)	
    	{
    	System.out.printf("\n%.2f %s %s Passed",sum,frstName,lstName);
    	sort[count++] = sum;
    	
    		}
    	else
    	{
    	System.out.printf("\n%.2f %s %s Failed",sum,frstName,lstName);
    	sort[count++] =sum;
    	
    	}
    	}
    	System.out.println("\n\nSorted Average");
    	System.out.print("-----------------------------\n");
    	
    	Arrays.sort(sort);
    	for(int i=0;i<sort.length;i++)
    	{
    	System.out.println(" "+sort[i]); 
    		
    	}
    	
    	System.out.println();	
    	inFile.close();
    }
    
    
}

this is whats inside of my grade.txt

5
a b 75.0 76.0 77.0 78.0 79.0
c d 74.0 75.0 77.0 78.0 79.0
e f 70.0 72.0 73.0 74.0 75.0
g h 90.0 89.0 73.0 67.0 89.0
i j 78.0 77.0 75.0 66.0 87.0


this is the error :
Exception in thread "main" java.util.Input MismatchExcepti on
at java.util.Scann er.throwFor(Sca nner.java:819)
at java.util.Scann er.next(Scanner .java:1431)
at java.util.Scann er.nextInt(Scan ner.java:2040)
at java.util.Scann er.nextInt(Scan ner.java:2000)
at Adamos.main(Ada mos.java:22)

Process completed.

why is that the error? I don't get it?

[JosAH]

why is that the error? I don't get it?

There must be something else in that input stream that made your scanner barf.
Read what was there instead of that int:

Scanner inFile= ...;
try {
   // your normal code here
}
catch (Exception e) {
   System.out.println("this made me barf: "+inFile.readLine());
}

... and see what happens.

kind regards,

Jos