Java: exchanging data between opened jPanel and jFrame

From the already opened jPanel I open the jFrame "FastSearch" search window using the following method:

new FastSearch().setVisible(true);

which lists the search results. When I select one of the search results I want to send the value back to the parent jPanel which opened the child jFrame "FastSearch".

开发者_StackOverflowI thought it would look something like this:

ParentWindow.targetVariable = theValueFromTheOpenedForm;

But of course, it doesn't work.

How do I pass data between opened jPanel and jFrame?

Thanks in advance

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You'll need to pass the object through to the FastSearch class in some way. Either in the constructor or through some other method. I'm assuming there is probably a listener interface.