2,322 Reusable Code Snippet Topics
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 | This short code shows how to indicate the mouse-over event on wxPython button, similar to the mouse-over in web pages. Button changes colour when mouse pointer is over its area. |
 | In [url=http://www.daniweb.com/code/snippet259.html]Part 1[/url], the code reversed the string in place. This version uses a source and a destination string. |
| | The myth is around that while loop is faster than the corresponding for loop. I checked it out with Python module timeit, and came to surprising conclusion. This snippet can easily be modified to time any of your functions you write.  |
 | Yet Another Calculator using wxPython, smaller, but more advanced than the previous one. Wrote this one to test the Curry class, but it didn't work well. So there is no curry there. I found out that one has to be careful with the eval() function. If you write 012 instead … |
| | JAVA Date Utility ( This program Demonstrates the proper use of Date functionality in common java programming scenarios ) Date and Time |
| | /*This program works just like MS-DOS. It takes in the input, uses the C Library, uses the system files and function, executing and displaying the code on the same command prompt. */  |
| | Let mathematics do your art work! It is amazing how a simple mathematical formula can draw very intricate shapes. Here we draw a fractal tree on a Python Image Library (PIL) blank image, and save the finished drawing as an image file in one of the popular formats. Look at … |
| | The wx.BitmapButton shows an image, great for those folks who think that a picture is worth a thousand words. The snippet gives an example how to load the image, size the button, and put the image on the the button. |
| | This is a simple, but complete (pseudo) random password generator. Examples of usage: [code] $ ruby pgen.rb soovmuvytv $ ruby pgen.rb --length=20 bynnugipyeeghdbihcdn $ ruby pgen.rb --length=20 -n v3ji3awj1trzjlda5oax $ ruby pgen.rb --length=20 -np :sa6vafpummpttjp?qo: [/code] For complete usage guidelines, run [inlinecode]$ ruby pgen.rb --help[/inlinecode] This (hopefully) serves as both … |
| | The program takes text and establishes dictionary of character:frequency. This dictionary is then presented sorted by character. Since it is important to show the most frequent characters, two methods are given to present dictionary sorted by frequency. Should all be very good for learning Python. |
| | This snippet shows how to use command line arguments as variables in your program. A command line argument is extra information you give a program at runtime, by typing the information after the program name like so: Linux might look like this: user$: ./myprogram argument1 argument2 A windows command prompt … |
| | Just a small Python program to calculate monthly payments and other costs. I have compared it with some of the calculators available from many of the online mortgage companies, and results seem to match. |
| | Used recursion to reverse the string. Another method for string reversal.  |
| | In this snippet we are playing around with wxPython's buttons, showing you how to bind the mouse click event, enable and disable, show and hide the buttons. Each button also has a tool-tip (hint) associated with itself.  |
| | If you want a variable in a C function to retain its last assigned value, you simply declare it as static. Python does not have static variables, but you can impersonate one in different ways. The default list argument is my preferred option. Here are some examples. |
| | Returns the duplicate value in array t[n], which contains numbers 1 to n-1. Given two approaches with O(n) and O(n-square) complexities. |
| | Py2Exe takes your Python code file and packages it into an executable file that you can distribute to a client that does not have Python installed. The executable file contains your byte code, all the required modules and the Python interpreter. It is not a small file. The snippet is …  |
| | Return Nth the node from the end of the linked list. Time Complexity is O(n). |
| | One line stament which acts as a conditional operator ?: If x=true, returns y else returns z. |
| | Do you think that people act demented during full moon nights? This small python program will tell you moon phase of a date you give it, so you can take precautions! |
 | [B][COLOR="Red"]Introduction[/COLOR][/B] There are many times when we try to create a binary search tree of many different data types. This article explains creation of a template library CTree. template <class T>class CTree can be used to create a binary search tree (BST) of any data type. [B][COLOR="red"]Features[/COLOR][/B] This class support … |
| | This small snippet shows how to load and display HTML (Hyper Text Markup Language) with wxPython's HtmlWindow(). This could be particularly useful with instruction and help text. HTML allows you to include pictures, fancy fonts and links. |
| | When I first met folks in Las Vegas that used biorhythm values of the top players in a team to place their bet, I thought they were a little odd. Some of them were successful, but I am sure biorhythms were not the only thing they considered. You can read … |
 | FASM can output an executable PE directly, but sometimes you want to output an object file for linking with modules in other languages. The following program can be used to link with the C library of the GCC compiler with the following commands: C:\>fasm hello.asm hello.obj C:\>gcc hello.obj -o hello.exe … |
| | Some languages are hard to get started in. FASM appears to be one of these languages because the documentation is not detailed enough for a beginner. That's a shame because FASM is (in my opinion) one of the better assemblers. The following snippet is a simple Hello, world! program which … |
| | Just in time, a short Python code snippet to calculate the date of Easter Sunday of a given year. This can be expanded to calculate the important date of Mardi Gras too. |
 | [COLOR=Blue] Ever since PHP turned register_globals_off I have had problems here and there in my codes. I searched hard and long for a simple fix while keeping globals turned off. Fortunately, I found one! I have posted it below for your convenience and it is also described [URL=http://www.nasatech.com/PHP-DOCS/faq.misc.html#faq.misc.registerglobals]Here[/URL]. I'm not … |
| | Using an SDL (Simple DirectMedia Layer) wrapper is one way to play sound and music with Ruby. I have tested this snippet with .MID .MOD and .WAV files and it performs well. There are several SDL wrappers for Ruby available, I picked RUDL because of its simplicity. RUDL is great … |
| | I took the data of an old State Trivia game and applied it to Python. The data forms a series of lists with matching indexes. One example of how to ask a trivia question, present four possible answers, and how to evaluate the correct answer is given. You can expand … |
 | --- Basic Datatypes --- --- Form Management --- --- Data Access --- --- Component model --- |
| | You can use any of the commented constants to perform the explained function. You might need to adjust the process privilege on NT based OSes. |
| | Assumes the presence of Memo1 on Form1. |
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| | In case there are mote than one NIC (Network Interface Card) the coe gives the MAC of the first adapter. You can change the 0 on the line qoted below to take the MAC of other NICs if present. "Result := GetAdapterInfo(AdapterList.lana[0]) " |
| | This code disables font smoothing for a TLabel component. Can easily be converted for other VCL controls. Loren Soth |
| | Beginner C++ - A simple calculator writen in C++, compiled on Tubo C++ v4.5 & Borland C++ 5.5. The user inputs numbers & chooses '+','-','*'/' The operator is tested. If correct the appropriate sum is preformed. |
 | Uses the API to get the regional short date format from the PC |
| | Question of wordcount program similar to Unix wc came up in the forum and I worked on a solution. Program shows number of lines, number of words, number of characters and text file's name. Good learning for commandline, file and string handling. |
 | The Relative of push is pop. Pop removes the last item in an Array, and returns the value into a single (scalar) variable. Again, due To VB Limitations, this one works on strings. |
| | Simple Function To Simulate The Push Command, due to VB's limitations, This one is Specific To Strings. (Simple enough to modify for integers or variants, etc) |
 | This is a little code for a shell that allows for simple redirection and multiple yes! MULTIPLE piping abilities. It is slightly glitched for background processes, and this is only my second program written with C/C++ so it looks to be quite inefficient, but the piping works pretty nicely. The …  |
| | The little program allows eye patients to test their color skills. They are given a random color rectangle by the computer and are then asked to match the color as closely as they can using sliders of the three basic colors. An evaluation button examines the closeness of the results. |
| | This prog uses SQL Server's Master Databases xp_cmdshell stored procedure (Shell Commands) to send messages in a LAN.Make Sure the driver name is 'netsend' and it points to Master Database. Check and change the username and passwords in the Java Program also.Make sure you have sufficient priviledges to execute stored … |
| | A list comprehension derives a new list from an existing list, and was adopted by Python from the Haskell language. This snippet tries to explain the development of list comprehension and shows a number of uses, including nested list comprehension. The benefits are simplicity (after an initial learning bump) and … |
| | This program calculates the determinant of a square matrix of any order using a recursive function. Uses a square matrix struct and related functions. |
 | count the number of occurrences of a sub-string in another string. a good example for learning how to make your own functions like strcpy, strlen and strcmp |
 | Playing a wave file just got a whole lot easier. |
| | Yet another angle at this same topic. [i]See also [url=http://www.daniweb.com/code/snippet318.html]Parsing a String into Tokens Using strcspn, Part 1[/url] and [url=http://www.daniweb.com/code/snippet443.html]Parsing a String into Tokens Using strcspn, Part 2[/url].[/i] |
| | This snippet is a variation of the code in [url=http://69.93.117.133/code/snippet318.html][i] Parsing a String into Tokens Using strcspn, Part 1[/i][/url]. It uses canned strings rather than reading from a file. [i]See also [url=http://www.daniweb.com/code/snippet444.html]Parsing a String into Tokens Using strcspn, Part 3[/url].[/i] |
| | Regular expression pattern match in a string, I only checked with * as wild card, other wild card characters are easy implement but I havent done that. any problems you can email me @ [email]rramaswa@usc.edu[/email] platform - Unix/Linux, havent tested in windows, should'nt be a problem unless some standard header … |
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