import javax.swing.JFrame;
import javax.swing.UIManager;

public class MCAIOMain extends JFrame {
        public static void main(String[] args) {
                try {
                    UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
                } catch (Exception e) {
                    System.err.println("Could not set look and feel");
                }
                final MCAIOMain f = new MCAIOMain();
                f.setBounds(100, 100, 600, 400);
                f.setVisible(true);
                f.setDefaultCloseOperation(EXIT_ON_CLOSE);

        }

}



Description Resource    Path    Location    Type
The serializable class MCAIOMain does not declare a static final serialVersionUID field of type long    MCAIOMain.java  /MCAIO/src  line 3  Java Problem