Default constructors in Java

Question

I know I\'m asking some serious 101 question here...

I have some class Foo and a class Bar that extends Foo. In Foo

Answer 1

JVM will not provide a default constructor if you have provided one due to design reasons. What you can do define constructor in Bar with same signature and call super().

public Bar(int x,int y) {
    super(x,y);
}