Java program help with JRadioButtons! I can't get the buttons to show up on the JFrame that I've created

Question

I am following an example in a textbook, but I have to modify it to fit what I am trying to do. I have tried including everything in that program and only modify what I needed to, but for some reason, when I run my program, I get a blank JFrame window. What are possible reasons for this?

Thanks in advance!

Answer 1

forgetting the content pane is a common problem.
Being lazy I usually start with:

JPanel mypanel = new JPanel;
getContentPane.add(myPanel);

then just format everything into the JPanel.

Being even more lazy, I usually just use the NetBeans IDE (which is a free download) and just drag and drop components visually, and let the IDE do most of the coding.

p.s. do not forget to put the JRadioButtons into a ButtonGroup or they won't "radio"

Answer 2

What was the code?

Is getContentPane() being used? And at end there must be a notify code to update the GUI according to the current layout.