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Is your problem solved now?

The sub class's variable names are the same as the base class's variable names.
Do you intended to mask the base class variables?

Your code does NOT call the super class's constructor, so the compiler wants to add a call to the default constructor which does not exist.
Either call the super constructor or add a default...

You'll have to post some actual code. The names of constructor and class must match. Your comment makes no sense.

What is the relationship between Abstract1 and AbstractClass1?
Your post does not show any Abstract1.

What line in your code was the error on?