task5 java

import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.List;
import java.util.Scanner;
import java.util.ArrayList;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

class DifferentVectorsLengthException extends Exception {
    //private String msg = "Vector are not equals";
    private static final long serialVersionUID = 1L;

    public DifferentVectorsLengthException(String msg) {
        super(msg);
    }

}


 class Program {

    public static void main(String[] args)  {
        Application app = new Application();
        app.runApplication();
    }

}



  class MyVector{
  private List<Integer> components;
  public MyVector(List<Integer> com)
  {
    components = new ArrayList<Integer>(com);
  }
  public List<Integer> getComponents()
  {
    return Collections.unmodifiableList(components);
  }
}

class VectorUtils {
    public static boolean isEquals(MyVector vector1, MyVector vector2) throws DifferentVectorsLengthException {
        if (vector1.getComponents().size() == vector2.getComponents().size())
            return true;
        else
            throw new DifferentVectorsLengthException("Vector are not equals");
    }
}

class Application {
    private String v1Str;
    private String v2Str;


    public void runApplication() {
        boolean isEquals = false;
        while (!isEquals) {
            getDataUser();
            MyVector vector1 = new MyVector(convertStringToList(v1Str));
            MyVector vector2 = new MyVector(convertStringToList(v2Str));
            try {
                isEquals = VectorUtils.isEquals(vector1, vector2);
            } catch (DifferentVectorsLengthException e) {
                System.out.println(e);
            }
        }
        saveSum();
    }

    public void saveSum()
    {
        List<Integer> v1Numbers= convertStringToList(v1Str);
        List<Integer> v2Numbers= convertStringToList(v2Str);
        int sum = 0;
        for (int i = 0; i < v1Numbers.size(); i++)
        {
            sum += (v1Numbers.get(i) + v2Numbers.get(i));
        }
        try (PrintWriter out = new PrintWriter("Sum.txt")) {
            out.println(sum);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
    }

    public void getDataUser() {

        Scanner reader = new Scanner(System.in);
        System.out.println("Enter vector one: ");
        v1Str = reader.nextLine();
        System.out.println("Enter vector two: ");
        v2Str = reader.nextLine();

    }

    private List<Integer> convertStringToList(String v) {
        String parts[] = v.split(" ");
        List<Integer> vInt = new ArrayList<Integer>();
        for (String stringValue : parts) {
            try {

                vInt.add(Integer.parseInt(stringValue));
            } catch (NumberFormatException e) {

            }
        }
        return vInt;
    }
}