import java.math.BigInteger; /** Computes an exact factorial, using a BigInteger. * * 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 Factorial { public static void main(String[] args) { …
Tag: code
Aug 29
Exec.java Provides static methods for running external processes from applications.
import java.io.*; /** A class that eases the pain of running external processes * from applications. Lets you run a program three ways: * * exec: Execute the command, returning * immediately even if the command is still running. * This would be appropriate for printing a file. …
Aug 29
Controlling Image Loading
~~~~~~~~~~~~~~~~~~~ ImageBox.java A class that incorrectly tries to load an image and draw an outline around it. The problem is that the size of the image is requested before the image is completely loaded, thus, returning a width and height of -1. ~~~~~~~~~~~~~~~~~~~ import java.applet.Applet; import java.awt.*; /** A class that incorrectly tries to load …
Aug 29
HelloWWW2.java Illustrates the ability of an applet to read parameters contained in the HTML document
HelloWWW2.java Illustrates the ability of an applet to read parameters contained in the HTML document (PARAM element containing a NAME-VALUE pair). &&&&&&&&&&&&&&&&&&&&&&&&&&&&&& import java.applet.Applet; import java.awt.*; ************************* public class HelloWWW2 extends Applet { public void init() { setFont(new Font(“SansSerif”, Font.BOLD, 30)); Color background = Color.gray; Color foreground = Color.darkGray; String …
Aug 29
An example Travel Site
quick-search.html Front end to travel site <!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 4.0 Transitional//EN”> <!– Front end to travel servlet. Taken from Core Web Programming Java 2 Edition from Prentice Hall and Sun Microsystems Press, . May be freely used or adapted. –> <HTML> <HEAD> <TITLE>Online Travel Quick Search</TITLE> <LINK REL=STYLESHEET HREF=”travel-styles.css” …
Aug 29
GetElementsByName an example: Checkbox
<html> <head> <script type=”text/javascript”> function getElements() { var x=document.getElementsByName(“myInput[]”); alert(x.length); alert(x[0].value); alert(x[1].value); alert(x[2].value); } </script> </head> <body> <input …
Aug 29
IfExample.jsp Page that uses the custom nested tags
IfExample.jsp Page that uses the custom nested tags <!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 4.0 Transitional//EN”> <!– Illustration of IfTag tag. Taken from Core Web Programming Java 2 Edition from Prentice Hall and Sun Microsystems Press, . May be freely used or adapted. –> <HTML> <HEAD> <TITLE>If Tag Example</TITLE> <LINK REL=STYLESHEET HREF=”JSP-Styles.css” TYPE=”text/css”> </HEAD> …
Aug 29
Driver template to create and start a Thread object.
** 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 DriverClass extends SomeClass { … public void startAThread() { // Create a Thread object. ThreadClass thread = new …
Aug 29
Pointers
/* The following code example is taken from the book * “The C++ Standard Library – A Tutorial and Reference” * by Nicolai M. Josuttis, Addison-Wesley, 1999 * * (C) Copyright Nicolai M. Josuttis 1999. * Permission to copy, use, modify, sell and distribute this software * is granted provided this copyright notice appears in …
Aug 29
Valarray Example
/* The following code example is taken from the book * “The C++ Standard Library – A Tutorial and Reference” * by Nicolai M. Josuttis, Addison-Wesley, 1999 * * (C) Copyright Nicolai M. Josuttis 1999. * Permission to copy, use, modify, sell and distribute this software * is granted provided this copyright notice appears in …
