Interview :: Core Java
Yes, We can declare the main method as public static final void main(String[] args){}.
The constructor can never be declared as final because it is never inherited. Constructors are not ordinary methods; therefore, there is no sense to declare constructors as final. However, if you try to do so, The compiler will throw an error.
No, we cannot declare an interface as final because the interface must be implemented by some class to provide its definition. Therefore, there is no sense to make an interface final. However, if you try to do so, the compiler will show an error.
The main difference between the final method and abstract method is that the abstract method cannot be final as we need to override them in the subclass to give its definition.