/* * FeapMatFrame.java * * Created on 7. November 2002, 09:45 *//** * * @author Christian Uhde */import javax.swing.*;public class FeapMatFrame extends JPanel implements FeapMaterial {        /** Creates a new instance of FeapMatFrame */    public FeapMatFrame() {        add(new JLabel("Frame"));    }        public String writeFeapFile() {        String output = "FRAMe\n";        output += "something\n\n";        return(output);    }    }