Задача 6

package com.company;

import java.util.Scanner;

public class Main {
    public static void print(int[][] matrix){
        Scanner scan = new Scanner(System.in);
        for (int row = 0; row < matrix.length; row++) {
            for (int col = 0; col < matrix.length; col++) {
                System.out.printf("[%d] row [%d] col: ",row ,col);
                matrix[row][col] = scan.nextInt();
            }
        }
    }
    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);
        System.out.print("Enter row and cols :");

        int rowAndColLength = scanner.nextInt();
        int[][] arr = new int[rowAndColLength][rowAndColLength];

        print(arr);

        System.out.println();
        for (int row = 0; row < arr.length; row++) {
            for (int col = 0; col < arr.length; col++) {
                System.out.print(arr[row][col] + " ");
            }
            System.out.println();
        }
        System.out.println();

        for (int row = 0; row < arr.length; row++) {

            for (int col = 0; col < arr.length; col++) {
                int sum = 0;

                if(col + 1 < arr.length){
                    sum = sum + arr[row][col] + arr[row][col+1];
                    System.out.println();
                    System.out.printf("Sum --> row[%d]: col[%d] + col[%d] is: %d",row,col,col+1,sum);
                    System.out.println();
                }

            }

        }
    }
}