1d array vs 2d array

2dvs1d.java

// 1d array

for (int i = 0; i < array.size(); i++) {
  int row = i / mapWidth;
  int column = i % mapWidth;
   
  drawImage (column * tileWidth, row * tileHeight); 
}

// 2d array

for (int x = 0; x < array.size(); x++) {
  for (int y = 0; y < array[x].size(); y++) {
    drawImage(x * tileWidth, y * tileHeight)
  }
}