Run another program inside my program applet/canvas?

Newbie & Debugging Questions
#1

Hello!

I was thinking… in Java, is there a way to run another java program, and display this program INSIDE my program, via Canvas or something?

Thanks.

#2

From what I know, there isn`t a way. But sombody, who is a coding expert, might show you some way to do that. :slight_smile:

#3

Ook, thank you!

#4

It depends… In case the java application you want to start is a swing application using a canvas as default viewport / panel, then you’d just put your Canvas from that application into your panel / applet.

#5

…which means you can’t put an application you yourself have not created into your program. You have to have the source and it has to be Java.

#6

You’re half correct, it has to be java (or at least for the method described), but I am pretty sure that you don’t need the source. I’m not 100% sure, but legal issues aside, you should be able to do the exact same thing with just a jar file AFAIK.

#7

Let’s say the ‘external code’ has a ‘canvas-class’ (as opposed to a main-class).

You’d simply put the 3rd-party JAR in the classpath, and do this:


Class<?> clazz = Class.forName("third.party.SomeCanvasClass");
Canvas canvas = (Canvas)clazz.newInstance();

myPanel.add(canvas);