Dealing with custom objects from the main applet class
Posted on 1998-04-13
Hi all. Here's my question I hope you analyze and answer :)
I have the main class which is a subclass of Applet of course. My problem is that I cannot create my own classes and use the object of those classes in the main class. For example, suppose I have the main class called MyApplet. The dimensions are (0, 0, 200, 100). This is what I'm trying to program. A rectangle drawn around all the edges of the applet (as a frame of the applet window). The background of the window must be white. And in that frame, I want to place some custom buttons, which are formed by a gif and a yellow text at the center of it. This is what I've thought about a possible implementation:
Create the main class this way: public class MyApplet extends Applet. Other class that extends Canvas this way: public class MyFrame extends Canvas. And the last that extends nothing, this way: public class MyButton.
Is right this approach? Can you recommend me other easier implementation? I tried this, but I don't know why computer crashed when MyFrame object was created.
My purpose is to encapsulate a button so I can place it wherever I want in the applet window. But to accomplish that, I need to use getImage from the MyButton class to load the background image of the button, but that function is actually returning "null". Don't know why.
I hope you, experts, help me in this problem. Thanks in advance