/* * Copyright (c) 2000 David Flanagan.  All rights reserved. * This code is from the book Java Examples in a Nutshell, 2nd Edition. * It is provided AS-IS, WITHOUT ANY WARRANTY either expressed or implied. * You may study, use, and modify it for any non-commercial purpose. * You may distribute it non-commercially as long as you retain this notice. * For a commercial use license, or to purchase the book (recommended), * visit http://www.davidflanagan.com/javaexamples2. */package com.davidflanagan.examples.applet;import java.applet.*;import java.awt.*;/** * A version of the Scribble applet that reads two applet parameters * to set the foreground and background colors.  It also returns * information about itself when queried. **/public class ColorScribble extends Scribble {    // Read in two color parameters and set the colors.    public void init() {        super.init();  // Let the superclass initialize itself        Color foreground = getColorParameter("foreground");        Color background = getColorParameter("background");        if (foreground != null) this.setForeground(foreground);        if (background != null) this.setBackground(background);    }    // Read the specified parameter.  Interpret it as a hexadecimal    // number of the form RRGGBB and convert it to a color.    protected Color getColorParameter(String name) {        String value = this.getParameter(name);        try { return new Color(Integer.parseInt(value, 16)); }        catch (Exception e) { return null; }    }    // Return information suitable for display in an About dialog box.    public String getAppletInfo() {        return "ColorScribble v. 0.03.  Written by David Flanagan.";    }    // Return info about the supported parameters.  Web browsers and applet    // viewers should display this information, and may also allow users to    // set the parameter values.    public String[][] getParameterInfo() { return info; }    // Here's the information that getParameterInfo() returns.    // It is an array of arrays of strings describing each parameter.    // Format: parameter name, parameter type, parameter description    private String[][] info = {        {"foreground", "hexadecimal color value", "foreground color"},        {"background", "hexadecimal color value", "background color"}    };}