I can not extend a JFrame class in Eclipse

1

I'm trying to extend a JFrame class to create a window, however in eclipse the following error appears:

configure build path -Open the Java build path property page of project "Chat"

The code would be this:

import javax.swing.*;

      public class AppChat extends JFrame{

}
    
asked by anonymous 15.11.2017 / 16:54

0 answers