Configure at design time

i am still learning Java, but I had programming experience in Delphi.
In Delphi I could also import components (like libaries) and use them per drag n drop on your form (java: frame, swing).
Here I could change parameters of the charts.
Is it possible to get this way of designing in Java (in SWT builder)???

(Window Builder, New Frame, In the code add your code)
This works, but is there a way to change the behaviour of the ChartPanel at design time?

I’m not sure, I’ve never used it that way.

You might look into hot swapping or hot reloading if this is a priority. There are a bunch of resources on Google, but I haven’t tried it.

I personally stay away from GUI builders and prefer to do as much in code as possible, but it comes down to personal preference.