50  3   21  10  9   9   54  47  24  74
22  63  63  28  36  47  60  3   45  83
20  37  11  41  47  89  9   98  40  94
48  77  93  68  8   19  81  67  80  64
41  73  24  29  99  6   41  23  23  44
43  41  29  11  43  94  62  27  81  71
83  14  97  67  21  68  77  25  21  24
31  8   54  14  49  96  33  18  14  80
54  55  53  38  62  53  62  10  42  29
17  89  92  87  15  42  50  85  68  43

import java.io.File;
import java.io.IOException;
import java.util.Scanner;
public class Summer {
    public static void main(String args[]) throws IOException {

        File text = new File("src/nums.txt");

        if (!text.exists()) {
          text.createNewFile();
        }

        int sum = 0;
        Scanner input = new Scanner(text);
        while (input.hasNextInt()) {
            sum = sum + input.nextInt();

        }

        System.out.printf("Sum of all numbers: %d", sum);


        int lineSum = 0;
        int lineNum = 1;

        while (input.hasNext()) {
            if (input.hasNextInt()) {
                lineSum = lineSum + input.nextInt();
            } else {
                input.next();
                lineNum++;
            }
        }

        System.out.printf("%nSum of line %d: %d", lineNum, lineSum);
    }
}

Sum of all numbers: 4687
Sum of line 1: 0