Getting exception in thread “main” java.lang.StackOverflowError

Question

I am new to Java and OOPs and here is my issue. When I run the below code, I get the

Exception in thread \"main\" java.lang.StackOverflowError.

Answer 1

The problem is that you can't do something like this:

Class Try{
Try try = new Try();
public static void main(String[] arg)
{
Try try1 = new Try();
}

The issue with above code is that first the execution will start with your main method(ofcourse in this particular case :) ) then the try1 object will get created and all of the Class fields will get initialized, since you created an object of the same class you are in as a Class Field() it will try to re-initialize the Class fields, ending up in an infinite loop and inevitably the Famous STACK OVERFLOW error!

Now, talking in context of your question:

App2 a2 = new App2();
JavaApplication1 ja =new JavaApplication1(); //remove this line, it is causing the SO-error!!!