Recorder

The Recorder class provides a framework for recording frames to a file. It includes methods to start and stop the recording process, and an abstract method saveFrame() that must be implemented by subclasses to define the specific behavior for saving a frame.

This class is intended to be extended by other classes that provide concrete implementations for saving frames in different formats.

Example usage:

public class MyRecorder extends Recorder {
    public MyRecorder(String path, String ext) {
        super(path, ext);
    }
 
    @Override
    public void saveFrame() {
        // Implementation for saving a frame
    }
}

Note: The Recorder class uses the Applet class to register a method that is called after each frame is drawn. This ensures that frames are saved at the appropriate time during the recording process.