QuizAverager.java

package lab7;

import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;

public class QuizAverager
{
  public static void main(String[] args) throws FileNotFoundException
  {
    int pointsPossible = 50;
    
    // open the file
    File file = new File("scores.txt");    
    Scanner scanner = new Scanner(file);
    
    // while there are more lines...
    while (scanner.hasNextLine())
    {
      // get the next line
      String line = scanner.nextLine();
      
      // process the line
      findAverage(line, pointsPossible);
    }
    
    // close the file
    scanner.close();
  }
  
  private static void findAverage(String line, int pointsPossible)
  {   
    // construct a temporary scanner, just to read data from this line
    Scanner temp = new Scanner(line);
    
    // get the first and last name
    String first = temp.next();
    String last = temp.next();
    
    // add up all the scores
    double total = 0.0;
    while (temp.hasNextInt())
    {
      int value = temp.nextInt();
      total += value;
    }
    
    // print the average
    double average = total / pointsPossible;
    System.out.println(first + " " + last + " " + average);
  }
}