package com.synechron.aqr.nikhil;

public class ArrayBlock {

private static int[][] array2D;

public static void main(String[] args) {

ArrayBlock ab = new ArrayBlock();

ab.populateOriginalArray(6, 6);

// ab.printOriginalArray();

ab.printBlockArray();

}

public void printOriginalArray() {

for (int i = 0; i < array2D.length; i++) {

for (int j = 0; j < array2D[i].length; j++) {

System.out.print(" " + array2D[i][j]);

}

System.out.println(" ");

}

}

public void populateOriginalArray(int rows, int columns) {

array2D = new int[rows][columns];

for (int i = 0; i < rows; i++) {

for (int j = 0; j < columns; j++) {

array2D[i][j] = j;

}

}

}

public void printBlockArray() {

int innerBlockFactor = 0;

int k = 0;

for (int i = 0; i < array2D.length; i++) {

innerBlockFactor = (int) getBlockFactor(array2D[i].length);

for (int j = 0; j < innerBlockFactor * innerBlockFactor; j++) {

if (k == innerBlockFactor) {

System.out.println("");

k = 0;

}

if (j < array2D[i].length) {

System.out.print(" " + array2D[i][j]);

} else {

System.out.print(" X");

}

k++;

}

System.out.println(" ");

}

}

public long getBlockFactor(int size) {

long sqrt = Math.round(Math.sqrt(size));

double sqr = Math.pow(sqrt, 2);

return sqr >= size ? sqrt : sqrt + 1;

}

}