AssignmentOFSayem

import java.io.*;
import java.util.Scanner;
import java.util.logging.Level;
import java.util.logging.Logger;

class ExplicitException extends Exception {
    ExplicitException(double x) {
        super("ExplicitException occured due to value: " + x);
    }
}


public class Assignment {

    static void checkResult(double num) throws ExplicitException {
        if(num < 5) {
            throw new ExplicitException(num);
        } else {
            try {
                BufferedWriter writer = new BufferedWriter(new FileWriter("/Users/niloykumarkundu/Desktop/Assignment/src/output.txt"));
                writer.write("" + num);
                writer.close();
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }


    public static void main(String[] args) {
        try {
            BufferedReader bufferedReader = new BufferedReader(new FileReader("/Users/niloykumarkundu/Desktop/Assignment/src/input.txt"));

            int a = 0, b = 0, c = 0;
            double res = 0;
            String input;

            try {
                while((input = bufferedReader.readLine()) != null) {
                    String[] temp = input.split(" ");
                    if(temp[0].equalsIgnoreCase("a")) {
                        a = Integer.parseInt(temp[1]);
                    } else if(temp[0].equalsIgnoreCase("b")) {
                        b = Integer.parseInt(temp[1]);
                    } else {
                        c = Integer.parseInt(temp[1]);
                    }
                }
            } catch(Exception e) {
                System.out.println(e.getMessage());
            }

            res = (a + b) / (double) c;
            try {
                checkResult(res);
            } catch (ExplicitException e) {
                System.out.println(e.getMessage());
            }

        } catch (FileNotFoundException ex) {
            ex.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (NumberFormatException e) {
            e.printStackTrace();
        } catch (ArithmeticException e) {
            e.printStackTrace();
        }
    }
}