Must explicitly invoke another constructor

Question

Why is Eclipse keeps giving me error on the constructor:

 public DenseBoard(Tile t[][]){
      Board myBoard = new DenseBoard(t.length, t[0].length);
  }
         


        

Answer 1

In your class Board you only have one constructor which requires 2 int arguments.

And since DenseBoard extends Board, each of the constructor in DenseBoard should call some constructor in Board.

If Board had a no-arg constructor, the compiler would automatically call it for you. But since you don't have one, you should call another constructor explicitly from your public DenseBoard(Tile t[][]).