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javaconstructorappletjapplet

Presence of constructor in an applet throws exception

I'm running the below applet. In it, the moment I add the constructor (even empty), the applet throws a runtime exception:

MainFrame.class can't be instantiated, java.lang.InstantiationException

If I remove the constructor, no exception in thrown. Can't I have a constructor present in an applet?

public class MainFrame extends JApplet implements  WindowListener, ActionListener {
    public void init()
    {       
        System.out.println("Applet Step1");
        String[] args = null;
        createAndShowGUI(args);      
    }
    private static void createAndShowGUI(String[] args) { /*code*/ }
    public MainFrame(final String[] args) {}
}
Solution

  • You need to add a default constructor too...

    public MainFrame() {}