How can references in java can call it's call methods.

[aakash447]

In tris game example in smart fox server2x.
I have seen

Code: Select all

public class TrisExtension extends SFSExtension
{
	private TrisGameBoard gameBoard;

and this reference is even accessing TrisGameBoard method reset

Code: Select all

void startGame()
	{
		if (gameStarted)
			throw new IllegalStateException("Game is already started!");
		
		lastGameEndResponse = null;
		gameStarted = true;
		gameBoard.reset();   <--------
		

how is this happening
I only know that object can access methods but how references are accessing.

[Lapo]

In Java all variables are references. They are references to objects created in the heap memory.
You can invoke any method on an object reference that is declared as "public".

The "reset" method is a public method of the TrisGameBoard class.

Hope it helps