Answer Posted / vinoth kumar

Yes,
we can define it in the abstract class itself.But it invoke
only by super() in sub class constructor.

Example:

abstract class AbsConstCheck{
AbsConstCheck(){
System.out.println("I AM WORKING AbsConstCheck");
}//some other methods declaration
}
class Sub extends AbsConstCheck{
sub(){
super();//calling abstract class constructor
System.out.println("I AM WORKING Sub");
}
}
class Main{
public static void main(String vin[]){
Sub s=new Sub();//calling sub,abstract class constructor
}
}

Output:

I AM WORKING AbsConstCheck
I AM WORKING Sub

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