Why do we need to extend JFrame in a swing application?

Question

Why do we need to extend the JFrame class when building a Swing application. As far as I know extends is used for inheriting the base class. None o

Answer 1

To use JFrame in your application You can extend it as you did it in your code or make an object as

JFrame frame= new JFrame();

and then you can do it

frame.setTitle("Title");
frame.setLayout(layout);

do it in either way as you are easy but to use JFrame in Application and to access its methods etc you have to use one of these methods