research Question

How do I implement runtime class binding in Java

Avatar of Christopher Schene
Christopher ScheneFlag for United States of America asked on
Java* runtime* abstract
8 Comments1 Solution23 ViewsLast Modified:
I am working on a program written in Java that is currently running and interacting graphically with the users and I want to add a "headless" option so that at runtime I will bind either to the class. that handles the GUI and when I am running headless, I will replace that GUI class with a replacement class where the GUI calls are stubbed out.

The reason I am doing this is that when I tried to run "headless" using crontab. crontab would not run the program emailed me an error message indicating  the program required a display.

I have heard I can do runtime binding  in Java using an abstract class, but I am asking for help to do that.
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