When I have a block that has many null values,such as: [x] [] [] [] [] [] [] [] [] I want the block to go right since there are no tiles to prevent this move how can i do that?

public void setTile(int y, int x, Tile t){

if (y >= 0 && y < board.size() && x >= 0 && x < board.get(y).size()) {

board.get(y).set(x, t);

}

}

public Tile getTile(int y, int x){

// return board.get(y).get(x);

if (y >= 0 && y < board.size() && x >= 0 && x < board.get(y).size()) {

return board.get(y).get(x);

} else {

throw new RuntimeException("Invalid indices provided for getTile");

}

}

public int getY()

{

return y;

}

public int getX()

{

return x;

}

public int getWidth(){

return board.size()>0?board.get(0).size():0;

}

public int getHeight(){

return board.size();

}

public static boolean moveRight(Board bd, Block bk)

{ } help me please!