java - How do use methods for the elements of a 2d array? -

How to use for elements of a 2D array?

I started a 2D array with a class board , and type cell . Basically, I want to use cell elements, and I want to use methods of that category. However, I am unsure of how to implement it, because I get an error while trying out

  board [1] [1] .cellmethod ()  

< P> The code for the board:

  Public square board {Private int col = 1, line = 1; Private cell [] [] Board; Private RandomNumberGenerator Rand = New RandomNumberGenerator (); Public Board () {Board = New Cell [Call] [Line]; Start the board with cells for (int r = 0; r & lt; = rows; r ++) {for (int c = 0; c  

cell class

  public class cell {// which will include a private image in cell size; // where the cell cell number is located offset - & gt; Need to translate the given coordinates into pixel private int x, y; Private Indus SHAPE_WIDTH = 50; // Width of each shape (pixels) Private Inc. SHAPE_HEIGHT = 50; // the height of each pixel; Private boolean visible; Public cell (integer figure, int x, int y) {this.shape = shape; This.x = x; this. Y = y; Rect = new rect (x, y, x + SHAPE_WIDTH, y + SHAPE_HEIGHT); Visible = false; } Public int getX () {return x;} public int getY () {return y;} public int getShape () {return shape;}}  

where I call the board object

  The public class extends to the PlayState State {Private Board Board; @ Override Public Wide Init () {Board = New Board (); } @ Override Public Zero Update (Float Delta) {} @ Override Public Empty Render (Painter G) {for (int r = 0; r & lt; = board.getrev (); r ++} {for (int c = 0; c & lt; = Board.getCol (); c ++) {board [0] [0] // error, any cell methods can not be applied}}}  

Your board array size is one (row and column).

  private int col = 1, line = 1; Therefore, there is only one element available on your  board  in the  board [0] [0] , the first row and the first column. Throws an  ArrayIndexOutOfBoundsException  from reaching the  board [1] [1] . 
 
 Remember that an  array  index can be maximized  values ​​of the array 
 
  board = new board ();  
 
  board  is not an array; If this is a  board  object, obviously you can not see it with the index  [] [] . You need to expose the underlying  board [] []  via the Gether method. 
 
  public cell [] [] getBoard () {return board; }  
 
 You can then use the recipient in the override public zero render form as your  render ()  method 
 
  @ Are (illustrator g) {cell [] [] boardarr = board.eatbauer (); For (int r = 0; r <= board.getRow (); r ++) {for (int c = 0; c & lt; = board.getCol (); c ++) {boardArr [ R] [c] .cellMethod (); }}}