// ========================================================================== ;//                                                                            ;//     Copyright (1996-1998)  Hartmut S. Loos                                 ;//                                                                            ;//     Institut f"ur Neuroinformatik   ND 03                                  ;//     Ruhr-Universit"at Bochum                                               ;//     44780 Bochum                                                           ;//                                                                            ;//     Tel  : +49 234 7007845                                                 ;//     Email: Hartmut.Loos@neuroinformatik.ruhr-uni-bochum.de                 ;//                                                                            ;//     For version information and parameter explanation have a look at       ;//     the file 'DemoGNG.java'.                                               ;//                                                                            ;// ========================================================================== ;//                                                                            ;// Copyright 1996-1998 Hartmut S. Loos                                        ;//                                                                            ;// This program is free software; you can redistribute it and/or modify       ;// it under the terms of the GNU General Public License as published by       ;// the Free Software Foundation; either version 1, or (at your option)        ;// any later version.                                                         ;//                                                                            ;// This program is distributed in the hope that it will be useful,            ;// but WITHOUT ANY WARRANTY; without even the implied warranty of             ;// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              ;// GNU General Public License for more details.                               ;//                                                                            ;// You should have received a copy of the GNU General Public License          ;// along with this program; if not, write to the Free Software                ;// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                  ;//                                                                            ;// ========================================================================== ;import java.awt.*;/** * A class implementing the error graph. * */class GraphGNG extends Frame {  DemoGNG demo;  SelGraphics graph;  TextField error;  /**   * The name of the clear button.   */  protected final static String CLEAR = "Clear";  /**   * The name of the close button.   */  protected final static String CLOSE = "Close";  GraphGNG(DemoGNG demo) {	this.demo = demo;	graph = new SelGraphics();	setTitle("ErrorGraph");	setLayout(new BorderLayout());	add("North",new Label("  Error Graph"));	add("Center",graph);	Panel pSouth = new Panel();	pSouth.add(new Button(CLEAR));	pSouth.add(new Button(CLOSE));	add("South", pSouth);	pack();  }  public boolean handleEvent(Event evt) {	if (CLEAR.equals(evt.arg)) {	  graph.clear();	  return true;	} else if (CLOSE.equals(evt.arg)) {	  demo.graphClose();	  return true;	}	return super.handleEvent(evt);  }}