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Java 2D Array Hackerrank Solution

Java 2D Array

For Explanation Watch Video:


 Sample Input

1 1 1 0 0 0
0 1 0 0 0 0
1 1 1 0 0 0
0 0 2 4 4 0
0 0 0 2 0 0
0 0 1 2 4 0

Sample Output

19
Code:
import java.io.*;
import java.math.*;
import java.security.*;
import java.text.*;
import java.util.*;
import java.util.concurrent.*;
import java.util.regex.*;

public class Solution {



    private static final Scanner scanner = new Scanner(System.in);

    public static void main(String[] args) {
        int[][] arr = new int[6][6];

        for (int i = 0; i < 6; i++) {
            String[] arrRowItems = scanner.nextLine().split(" ");
            scanner.skip("(\r\n|[\n\r\u2028\u2029\u0085])?");

            for (int j = 0; j < 6; j++) {
                int arrItem = Integer.parseInt(arrRowItems[j]);
                arr[i][j] = arrItem;
            }
        }
        int max = Integer.MIN_VALUE;
        for(int i=0;i<=3;i++){
            for(int j=0;j<=3;j++){
                int sum = arr[i][j] + arr[i][j+1] + arr[i][j+2]+
                                      arr[i+1][j+1]+             
                          arr[i+2][j]+arr[i+2][j+1]+arr[i+2][j+2];
                if(sum>max){
                    max = sum;
                }
            }
        }
        System.out.println(max);
        scanner.close();
    }
}

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