Complete Program

Here is the finished program:

import java.util.Scanner;

class AddUpFile
{
  public static void main ( String[] args )  
  {
    Scanner scan = new Scanner( System.in );
    int value;
    int sum = 0 ; // initialize sum

    int count = 1 ; // initialize count
    while ( count <= 100 )
    {
      System.out.print("Enter a number: ") ;
      value  = scan.nextInt() ;
      sum    = sum + value; // add to the sum
      count  = count + 1 ; // increment count
    }

    System.out.println( "Grand Total: " + sum );
  }
}

If you run this program as is you will have to enter 100 integers. This could be tedious. For testing purposes you can change the "100" to a smaller number.