Question

Consider the following list contained in file named input.txt: using java program

Khaled 65 78 56 89 -999

Kamal 37 55 44 22 18 56 26 -999

Ali 66 33 87 66 87 25 39 78 -999

Taher 12 67 -999

Write a program to read this information and Output the name and sum for each person.

Note: the number of rows may vary.

Assum -999 as sentenital value

Answer 1

Please find the answer below.
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package c15;
import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;

public class FileProcessing {

   public static void main(String[] args) {
       Scanner sc = new Scanner(System.in);
       //loading name of file
       File file = new File("input.txt"); //reading data from this file
       Scanner reader;
       try {
           //read file using scanner
           reader = new Scanner(file);
          
           //read until file having more to reads
           while(reader.hasNext()){
              
               //get the name
               String name = reader.next();
              
               //to store numbers
               int num;
              
               //to store sum
               int sum=0;
              
               //now read file until there is integers in it
               while(reader.hasNextInt()) {
                  
                   //get next integers
                   num =reader.nextInt();
                  
                   //if curr number is -999 break
                   if(num==-999) {
                       break;
                   }else {
                       sum +=num;
                   }
               }
              
               //print name and sum
               System.out.print("Name : "+name);
               System.out.println("\t\tSum : "+sum);
           }
       } catch (FileNotFoundException e) {
           System.out.println("file not found");
       }
       sc.close();
   }

}

my input.txt is as below

Khaled 65 78 56 89 -999
Kamal 37 55 44 22 18 56 26 -999
Ali 66 33 87 66 87 25 39 78 -999
Taher 12 67 -999

output