Please answer this question, otherwise I will have 200+ cancel their Chegg memberships. Thanks. I will post the shell at the bottom. comments.

// This program reads an input file that contains sequences of integers to // be added together. The program reads them as Strings so that it can // process large integers. Reset the constant DIGITS to allow it to handle // larger integers. import java.io.*; import java.util.*; public class SumShell { public static final int DIGITS = 25; public static void main(String[] args) throws FileNotFoundException { Scanner input = new Scanner(new File("sum.txt")); processFile(input); } //this method calls the method processLine public static void processFile(Scanner input) { int lines = 0; while (input.hasNextLine()) { } System.out.println(); System.out.println("Total lines = " + lines); } //declare an array for the result of some public static void processLine(Scanner data) { int[] result = new int[DIGITS]; String next = data.next(); transfer(next, result); System.out.print(next); while (data.hasNext()) { int[] number = new int[DIGITS]; //read the next token //declare ann array to convert the token that was read into that array //call the method transfer //call the method addto transfer(next, number); addTo(result, number); System.out.print(" + " + next); } System.out.print(" = "); print(result); System.out.println(); } //transfer the string to the array digits public static void transfer(String data, int[] digits) { } // add the array number to the array sum public static void addTo(int[] sum, int[] number) { int carry = 0; for (int i = DIGITS - 1; i >= 0; i--) { } if (carry > 0) throw new RuntimeException("overflow"); } //output the content of the array digits public static void print(int[] digits) { int start = 0; } }