CODEWITHSUNDEEP
javaarrays
DanielMateusz
DanielMateusz

Reputation: 51

Square array making the same columns and rows

I have to make a square array that shows me at the output: 1.

1 1 1 1 1
1 2 2 2 2
1 2 3 3 3
1 2 3 4 4
1 2 3 4 5

I was thinking about this solution, but the output is wrong:

public class Main
{
    public static void main(String[] args) {
        int[][] nowatablica = new int[7][7];
        System.out.println();
        for (int i = 0; i < nowatablica.length;i++ ) {
            for (int j = 0; j < nowatablica.length; j++) {
                nowatablica[i][j] = i+j;                                 
                System.out.print(nowatablica [i][j] + " ");
            }
            System.out.println("");
        }
    }
}

Can you tell me where I can find the probelem? Thanks.

Upvotes: 0

Views: 37

Answers (1)

Alex P
Alex P

Reputation: 1155

The problem lies in nowatablica[i][j] = i+j;. You are not calculating the value right. If you look at the array, you notice that the value 1 exists only in row 0 and column 0, the value 2 exists only in cells [1, x] and [x, 1], with x>=1 etc.

The correct expression is thus nowatablica[i][j] = Math.min(i, j)+1;

Upvotes: 1

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