NxNPattern.java

import java.lang.Math;

public class NxNPattern
{
  public static void main(String[] args)
  {
    for (int i = 0, j = 0; i < 49; i++) { 
if (i % 7 == 0) { 
if (j > 0) System.out.println(); 
j++; 
} 
int x = Math.abs(i % 7 - 3); 
int y = Math.abs(j - 4); 
if (x < y) System.out.print(y + 1); 
else System.out.print(x + 1); 
}
  }
}