Miscellaneous

TextBox displays text on a window, very much like a java.util.JLabel field, but it will use multiple lines as needed. Text can be justified any way, horizontally and vertically. Given a rectangular area and a String of any length, it will always display the string as nicely as possible. A TextBox object may be used like a JLabel and placed in any Container or extended for use as a renderer in JTables, JLists, etc. It can also place text in a rectangle in any graphics context without being added to the canvas. (In other words, it can do immediate mode text graphics as well as retained mode text graphics.)

A specialized mouse listener that detects and acts on double-clicks. Simply add it as a MouseListener to any component and add code to do the double-click work. It will react to a double click count even when the second click is not on the exact same pixel as the first click. It plays well with other mouse listeners, ignoring "consumed" mouse events and only consuming events when it actually does something. DoubleClickDetector is best used in a Swing or Awt environment as opposed to Graphics2D. Graphics, if at all interactive, usually requires an elaborate MouseListener implementation with plenty of instance fields and lots of code for each event type. But even with graphics, this code can serve as a proper example of how to handle a double-click.

FlickrUpload is a JFileUpload free add-on that adds Flickr support to our upload applets. It allows uploading many images without the pain of selecting one by one with regular HTML upload form. End-user can select, drag&drop; or copy/paste an amount of images (even from folders and subfolders) and then upload them to Flickr.

JumpToWidget is a Java applet that combines a text input box with a list box so that a user can make a selection from a large list quickly by typing in a substring into the text input box. On each keypress, the List box updates to show only the options that contain the entered substrings. Substrings are separated by spaces in the text input box. Only options which contain every substring are matched, and the comparison is case insensitive by default. This widget attempts to mimic the behaviour of the "Jump To File" feature in Winamp.

JavaChaos is a set of applets (with source code) which can be incorporated into a web page about Chaos Theory. They include the Lorenz, Henon, and Rossler attractors as well as the Sirpinski gasget and Spleenwort Fern which demonstrate dynamic fractal behavior.

This Java menu applet takes one input image containing all the menu items and performs real-time convex lens animation.

An enhancement of Java GUI ; Onlisys EZ-J Java Toolkit ; which you can create a nice-looking Java GUI with a few lines of code. A developer who is familiar with AWT can easily use Onlisys EZ-J Java Toolkit as of class/method name, which is compatible to the standard of AWT . The most popular web browser such as Internet Explorer (IE), which supports JRE (Java Runtime Environment) version 1.1.4 and Netscape, which supports JRE version 1.1.5. Our Onlisys EZ-J Java Toolkit is 100% Pure Java and developed to support Java Developer Kit (JDK) Version 1.1.x onwards. For this utility, your applet, developed by Onlisys EZ-J Java Toolkit, does not need to install more on the client web browser. Meanwhile, it also supports multi-platform, you can use Onlisys EZ-J Java Toolkit on your application and also on your applet, enlighten your web applet interface. It's high performance and light-weight loading, each component is located in each file. Your application/applet will load only the specific component that you use in your code.

JaVi (Java Vigenere) is an open source applet for cryptography with the Vigenere algorithm (useful mainly for educational purposes). Includes manual (with UML diagrams and Javadoc documentation) and standalone application version.

This applet solves linear equations easily. It can be of a great help to mathematics students learning algebra.

This applet reloads the image from the same web address and refreshes the paint area at a specified rate. This is particularly suitable for web cam applications.

JUnitConv is an universal Units of Measure Converter built as a Java Applet, it supports an unlimited number of Units Categories, Units of Measure and Multiplier Prefixes that could be customized using external text files. The default configuration data files contains 580 basic units of measure definitions divided in 31 categories and 27 multiplier prefixes for a total of 15660 composed units.

This java applet randomly presents letters of the alphabet, digits (0 to 100 depending on your choice), different basic colors, and shapes like rectangles, squares, triangles, ovals, circles etc., at an interval of time you can specify in seconds. It is useful and entertaining for nursery or pre school kids and helps in learning letters of the alphabet, numbers, different colors and shapes like rectangle, square, oval, circle, semicircle, triangle etc.

Solve Type I, II and III pipe flow problems using Swamee & Jain, Darcy-Weisbach, Colebrook and Hazen-Williams equations.

Xedit for Java is a tool for assisting in migration from a content editing environment for mainframe (VM/CMS) 3270 terminals to an e-business environment. Xedit for Java provides a Java applet that simulates the XEDIT editor of VM/CMS in a modern e-business environment. Xedit for Java supports all the traditional editing commands of XEDIT, as well as some enhancements such as "cut-and-paste" and "undo" features and the full Unicode character set.

This applet lets children practice basic arithmetic operations like Addition, Subtraction, Multiplication and Division. The functionality for LCM and HCF is also provided. It keeps the score of correct and wrong answers.

The author writes "I used to face some difficulty in choosing background or foreground colors for my applications as the colors provided in java.awt.Color are too few. In the beginning I used to randomly select three integers for the constructor of Color class, apply it, and then see the effect. If not satisfied, then the integers had to be changed, the code compiled and run again to see the effect. After numerous trials I was able to get a color of my choice. To make things easier this applet was written. Of course, if one is using javax.swing package this applet is not required as a class for this very purpose is provided. But for awt buffs this applet would be of some help. Recently, I have also added the functionality of trying out different fonts too."

This java TabbedPanel component enables you to use tabbed panels in your java applications or applets with added features such as detachable tabs into standalone windows and positioning tabs at the top, bottom, left, and right.

DFA (Interactive Animation of Finite-State Automata) is an applet that lets you build finite state machines (states and transitions) and then run a string through the machine and see if it is accepted. Great for testing your automaton.

ColorPicker is a freeware applet that allows you to generate hex color code by selecting the desired color from RGB palettes.

This is a collection of Java GUI APIs for programmers. The demo program is available in ezgui.java. Note: Internet Explorer is not displaying the tab correctly.