Software Development Forum

Hi *, Here is a small program I had created to search for a given .class file within given CLASSPATH. It is primarily used in our project on test machines where lotsa ppl put lotsa patches in lotsa paths/jars and finally end up wondering which class file is being used. …

This snippet shows different types of csting liblary implementation.

An interactive program using std::cin, std::cout, while loop and switch which will take from user no. 0 to 9 and print the number in characters. (eg. if user inters 0 the program shall respond You Have Entered : ZERO) If any negative number is given program should terminate.

Here is just a simple program to sort two strings inputted from the user entered on the command line.

This snippet has a will convert Decimal number to Binary number.

This snippet has a will convert Decimal number to Octal number.

The surface or canvas established with wx.PaintDC() can be used to draw a number of shapes like lines, rectangles and circles. The snippet shows you how to select colors and then draw a few simple shapes. Use help(wx.PaintDC) to get information about the many things you can use this surface …

The name says it all, I think. You have a nested list, you want to flatten it (e.g. because you want to count the occurence of an element), this function is all you need ;)

The small images you put on buttons and such are nice, but a real pain if you have to attach all those image files to your program. Python's base64 encoding module makes it easy to convert the binary image code to a string that you can simply make part of …

The following is a simple painting program. It uses Windows Forms and will allow you to draw whatever you want. You can also include code to change the colour or size of the brush via a right click menu by using code such as this: [CODE] MenuItem mi = new …

Well, I asked Dani and she said I could create a Haskell catagory in code snippits just by submitting a Haskell program :p . What self respecting code repository would be without one? So here goes, this program calculates the nth triangular number, given n by the user. Steven.

This program was inspired by my college math 1 class. It takes the values of a1, a2, b1, b2, c1, c2 and solves, displays the equation and shows the work. It also stops if the equation is dependant or inconsistent (Zero division) Cramer's Rule if a1x+b1y=c1 and a2x+b2y=c2 then x=((c1*b2)-(c2*b1))/((a1*b2)-(a2*b1)) …

Ever have two lists in python and you want to know what how much of one list the other contains? This code snippet will help you do that.

This little program uses Python and it's module pygame to do some sprite type animation. The rectangle that contains the image is moved and bounced within the window's frame. Pretty crude, since the whole screen frame is erased for each move. Actually it works smooth enough, and is relatively flicker …

Sometime in my childhood biology class I heard that the fancy colors of butterfly wings aren't really true colors, but interference patterns. This program claims to create interference patterns using a series of 3d sine waves using Python's popular pygame module. The whole contrivance is pretty to look at, and …

Nothing fancy. just shows a simple monthly calendar in a Tkinter label. The trick is to use a fixed font so spaces take up the same area as numbers.

The assumption is, that the typical workweek starts with Monday and ends with Friday. This is something the average working bloke has to live with (unless you work for a bank or the government). This little code will spit out a listing of all the workdays of a given month. …

Inspired by Bumsfeld's color tester, and wanting to give my students some practice at interpreting color strings, I wrote a little Tkinter program that asks the user to chose one of six buttons whose color most closely matches the color string printed at top. Comments welcome, and does anyone know …

Yes, the Python module 'zipfile' can handle an archive of files. This snippet shows you how to pack a PKZIP format zip file with several files and then unpack these archived files to individual files again.

So I needed a way to represent a line in Python. My first stab was to create a function dynamically. But classes are so much ... classier, so here's a simple implementation of a line object, with plenty of room for additional methods. The line is created as l = …

A simple guessing game for amatuer programmers like myself.

For those of you who think that an interpreted language like Python has to be slow, here is a small surpise. This snippet will draw a fair sized Mandelbrot set in a relatively short time. I cheated just a little, drawing the set in only black and white. Hey, nothing …

Here is an example of a random spin button using a button surrounded by labels to create the feeling of a spin animation. This example uses the Tkinter GUI and lets you select numbers 1 to 6. If your game requires more then this, just add additional labels. You are …

The FlashWindow component of wxPython will play those nice animated flash files found on the internet. They have file extension .swf usually.

For all functions, a domain error occurs if an input argument is outside the domain over which the mathematical function is defined. On a domain error, the function returns an implementation-defined value.

This program solves the geometric problem, called the Convex Hull problem. Given a set of points, the objective is to find a region such that the line joining any two points lies within that region. Informally, it is the polygon of largest area that can be formed out of the …

Let's say you had a list of full names, where the name would consist of a title, followed by first, middle and last name, or maybe just title and last name. You can sort this list by last name only, by creating a temporary list of sublists of type [last …

This module is a Python Library to support all IP2Location™ database products. It has been optimized for speed and memory utilization. Developers can use the API to qeury all IP2Location™ binary databases for applications written in Python.

This is a simple rock paper scissors game using random numbers.

this's daoremon's song code i hope you ever see doraemon's movie...

Evaluates an expression as a string using reverse polish notation.

This snippet uses [INLINECODE]strtod[/INLINECODE] to be a little more stringent.

This code snippet actually contains a few nifty things. There are two functions, hasVisited() and main(). hasVisited() makes use of a very handy function for CGI programmers: getenv. You can see I use it to retrieve REMOTE_ADDR which is the person's IP address. In main() it gets the count from …

This little snippet combines a Tkinter GUI application with sound from the pygame mixer. The snippet should do fairly well across platforms. I tested it on a Windows XP machine, but let me know your experience with other platforms.

The program uses doubly linked lists to store the numbers where each node contains a single digit . Hence numbers of any length can be used as operands . Program works only with +ve integers

Ever wanted to evaluate a user-provided expression, maybe from a form input or otherwise, and return the result? eval($expr) is dangerous because eval(open $out, "> file.what"); will open the file, infact, eval(everything) will pretty much do everything. checking though everything is tedious, and manually parsing everything seems like a waste …

here is code for reversing a string

Regex to match the dd/mm/yyyy date format.

This can be used for plotting radioactive decay of an unlimited* number of elements, decaying into each other. *Limited only by memory and user attention span.

This game takes a random word from a list, gives you five prompts to guess letters in the word, and then it shows you a "masked word," filling in the letters you've guessed. Say the word is "hockey" and the user guesses: 'h,' 'e,' 't,' 'r,' and 's.'The masked word …

This shows you how to draw a colorful bar graph of a data set using the Tkinter canvas and rectangles. An attempt has been made to use most of the canvas area for the graph. The bars are spaced and labeled with the corresponding value. The x-axis is simply the …

the code now contains snippet to create the linked list too! any questions can be directed to [U]raghu_tillu@hotmail.com[/U]

The snippet shows the use of a list of class instances to form a sortable and searchable database for solvents, or for that matter other chemicals. The list can be expanded and all the needed data added at the same time.

You can use the Tkinter canvas and the canvas.create_line() function to draw a line plot of a mathematical function. The canvas.create_line() function accepts a list of x, y points that you can create within a for loop. The resulting plot is centered and can be stretched along the x and …

The wxPython GUI tool makes it very simple to create nice looking analog clock. The analog clock component was put into simple dialog frame and can be moved about the screen.

Another famous fractal called the Sierpinski Triangle named after Polish mathematician Waclaw Sierpinski. He seemed to have played around with it the most. To state it simple, you start with an equilateral triangle and then form smaller triangles by connecting the midpoints of each of the sides. Some folks shade …

For those of you who live at home, run this on your parents' computer fullscreen, blue background, white font. Then put the mouse over the block in the upper lefthand corner, and enjoy the show.:twisted:

This code will let you play Battleship against the computer (bad graphics, I know) for a while, upon which it quits without so much as an error message. Could an experienced coder look this over and tell me why? Thanks. Venomlash :?:

Hello to everyone out there. Recently many people on different forums have been asking how to make a recursive function which reverses the string passed to it. But unlike the normal recrusive funtion which only prints out the reversed string, this implementation returns a pointer to reversed string.

Based on [url]http://astronomy.swin.edu.au/~pbourke/geometry/insidepoly/[/url] Converted to Delphi by Lord Soth