********************** BetterCircleTest.java ********************** import java.awt.*; import java.applet.Applet; /** Position circles down the diagonal so that their borders * just touch. Illustrates that Java 1.1 lightweight * components can be partially transparent. * */ public class BetterCircleTest extends Applet { public void init() { setBackground(Color.lightGray); setLayout(null); BetterCircle circle; int radius …
Category: Code . Programming Samples . প্রোগ্রাম উদাহরন
Code . Programming Samples . প্রোগ্রাম উদাহরন
Aug 25
RMI Example – Numerical Integration, a more realistic RMI example that sends an evaluatable object (function) from a client to a server for numerical integration.
Integral.java Performs actual numerical integration of the function (evaluatable object). /** A class to calculate summations and numeric integrals. The * integral is calculated according to the midpoint rule. * * Taken from Core Web Programming from * Prentice Hall and Sun Microsystems Press, * . * © 2001 Marty Hall and Larry Brown; * …
Aug 25
A JPanel that displays six radio buttons with labels.
A JPanel that displays six radio buttons with labels. import java.awt.*; import javax.swing.*; /** A JPanel that displays six JRadioButtons. * *. */ public class SixChoicePanel extends JPanel { public SixChoicePanel(String title, String[] buttonLabels) { super(new GridLayout(3, 2)); setBackground(Color.lightGray); setBorder(BorderFactory.createTitledBorder(title)); ButtonGroup group = new ButtonGroup(); JRadioButton option; int …
Aug 25
ThreadedEchoServer.java A multithreaded version of EchoServer, where each client request is serviced on a separate thread. Requires the following classes
import java.net.*; import java.io.*; /** A multithreaded variation of EchoServer. * * Taken from Core Web Programming from * Prentice Hall and Sun Microsystems Press, * . * © 2001 Marty Hall and Larry Brown; * may be freely used or adapted. */ public class ThreadedEchoServer extends EchoServer implements Runnable { public static …
Aug 25
Implementing a Server : Network Server
NetworkServerTest.java Establishes a network Server that listens for client requests on the port specified (command-line argument). Uses the following classes: /** Taken from Core Web Programming from * Prentice Hall and Sun Microsystems Press, * . * © 2001 Marty Hall and Larry Brown; * may be freely used or adapted. */ public class …
Aug 25
UrlTest.java Demonstrates the ease in which the various components of an URL can be determined (host, port, protocol, etc.)
জা import java.net.*; /** Read a URL from the command line, then print * the various components. * * Taken from Core Web Programming from * Prentice Hall and Sun Microsystems Press, * . * © 2001 Marty Hall and Larry Brown; * may be freely used or adapted. */ public class UrlTest { …
Aug 25
Counter2Test.java Driver class that creates three threaded objects (Counter2) that count from 0 to 4.
/** Try out a few instances of the Counter2 class. Driver class that creates three threaded objects (Counter2) that count from 0 to 4. In this case, the driver does not start the threads, as each thread is automatically started in Counter2’s constructor. Uses the following class: Counter2Test.java Counter2.java ************************** public class Counter2Test { …
Aug 25
Template illustrating the first approach for creating a class with thread behavior.
** Taken from Core Web Programming from * Prentice Hall and Sun Microsystems Press, * © 2001 Marty Hall and Larry Brown; * may be freely used or adapted. */ public class ThreadClass extends Thread { public void run() { // Thread behavior here. } }
Aug 25
Creates three radio buttons and illustrates handling
JRadioButtonTest.java Creates three radio buttons and illustrates handling ItemEvents in response to selecting a radio button. import javax.swing.JRadioButton; import javax.swing.ButtonGroup; import java.awt.*; import java.awt.event.*; import javax.swing.*; /** */ public class JRadioButtonTest extends JPanel implements ItemListener { public JRadioButtonTest() { String[] labels = {“Java Swing”,”Java Servlets”, “JavaServer Pages”}; JRadioButton[] …
Aug 25
Simple button that the user can select to load the entered URL.
JIconButton.java A simple button that the user can select to load the entered URL. import javax.swing.*; /** A regular JButton created with an ImageIcon and with borders * and content areas turned off. * */ public class JIconButton extends JButton { public JIconButton(String file) { super(new ImageIcon(file)); setContentAreaFilled(false); setBorderPainted(false); …
