When using NetBeans IDE you can do it for example in the Inspector window that is shown when you are designing your component. Right click the component (eg. JPanel) and select: Set Layout > GridLayout (or any other).

Maybe this will solve your problem?

I am attempting to run the following jFreeChart demo but in netbeans.
Original demo located here: http://www.java2s.com/Code/Java/Chart/JFreeChartPieChartDemo7.htm

Instead of programically creating the jPanel like the demo does, i would like to do it using the netbeans GUI and then add the code to create the jFreeChart.In netbeans i create a new project, create a new jFrame and place a new jPanel on the form and add the JTabpane in to Jpanel. After that I add two Jpanel in to Jtabpanes.

that one of Jpane i want to Show chart using Jfreecharts. I try to do it. But it never show my Tabpane and Charts. it open new Jframe and show charts. But I want to show that Charts in the Jpanel.

If Any one know how to do it. If u can reply this.
Thank you…..