Passing instance to other classes

Hi,
I have the following class
public class myApp extends SingleFrameApplicationWhen I pass the instance like as given below, the instance of SingleFrameApplication is passed. How can I pass the instance of myApp along with this, so that I can access the variables of myApp class from other classes and packages.
new TreeTableView(this);Please help.
Any help in this regard will be well appreciated with points.
Warm Regards,
Rony

Hi,
i think the constructor of TreeTableView looks sth. like TreeTableView(SingleFrameApplication app), so the TreeTableView takes a SingleFrameApplication and not a myApp. you have two possibilities to access your methods and variables.
1. Extend TreeTableView with a constructor TreeTableView(myApp app)
or
2. You cast the SingleFrameApplication to a myApp everytime you have to access myApp
=>
a = ((myApp)singleFrameApplicationInstance).variable;

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