counting multiple sets of int values in a file

Question

so i need to input a file with data like this

Joe Schmoe
76.5 20 30 25 10 75.9
Jilly Momilly Schmill
50.5 30 30 35 37 28 32 35 34 34 49.2
Gail Quail
62.3 15 17 10 3 10 63.6
Frank Crank
83.2 5 83.2
John Quann
57.9 30 32 35 32 30 57.2

i need the program to read the data and summarize it for each person example for Joe Schmoe out put would be

4   85  21.25   0.5999999999999943

which is the number of days (ints), total mins (sum of ints), average mins per day sum/days, and the final value is the first double minus the second.

my algorithm for reading the data is:

public void summaryData()
    {
        try 
        {
            while (inputStream.hasNext())
            {
                line = inputStream.nextLine();
                firstWeight = inputStream.nextDouble();
                while (inputStream.hasNextInt()) 
                {   
                            sum += inputStream.nextInt();
                    count ++;
                    avg = (sum/count);  
                }
                lastWeight = inputStream.nextDouble();
                        outputStream.println(count + "    " + sum + "    " + avg +  "    " + (lastWeight-firstWeight));
            if(inputStream.hasNext())
                    inputStream.nextLine(); 
            }
        }
        catch (InputMismatchException e) 
        {
            System.out.print(e);
            System.exit(0);
        }
    }

my problem is this i need the int count and the sum for each individual to start over rather than adding them all together.

any help or suggestions are greatly appreciated

sample output:

4    85    21.0    -0.5999999999999943
13    380    29.0    -1.2999999999999972
18    435    24.0    1.3000000000000043
19    440    23.0    0.0
24    599    24.0    -0.6999999999999957

Answer 1

Reset your count at each new line

...
while (inputStream.hasNext()) {
  count = 0;
...

It looks like you also have your math reversed for the first and last...

lastWeight-firstWeight

should probably be

firstWeight-lastWeight