@Override not supported for Constructors

Question

I know Constructors are not inheritable in java, we need to use super() - super must be the first statement in Constructors.

But why cant i use @Override annotation?

In example:

public class Foo extends Point2D.Double {
    @Override // The annotation @Override is disallowed for this location
    public Foo(){}
}

If i have a instance of Foo, i never ever can call Point2D.Double.Double() directly! This behave is compleatly like Overriding!

Answer 1

@Override is used when you are overriding a method (not a constructor!), which means that you are creating a method using the same name and parameters as one of the methods from superclass.

There is no constructor called Foo() in your superclass (obviously), because constructors aren't inherited from parent classes, so this is not overriding.

Overriding can be only applied to inherited methods which are not constructors and are not defined as final.

Answer 2

You cannot override a constructor.

Constructors are not inherited.

Yous subclasses constructor is completely different and independent from super class's constructor (language semantically, due to initializations etc it may depend. ).

While you can call super() to call the super class's constructor it's called chaining not overriding.