Basic Encryption & Decryption

10 September 2011 Comments off

This Encryption and Decryption software works for Caesear Cipher, Atbash Cipher, ROT5, ROT13, ROT47, Vigenère Cipher, and Playfair Cipher.

Requirement
.Net Framework 3.5+

Download Source Code :
(Developed by Jonathan Christianto)

Huffman Coding (Compression)

2 September 2011 Comments off

In computer science and information theory, Huffman coding is an entropy encoding algorithm used for lossless data compression. The term refers to the use of a variable-length code table for encoding a source symbol (such as a character in a file) where the variable-length code table has been derived in a particular way based on the estimated probability of occurrence for each possible value of the source symbol. It was developed by David A. Huffman while he was a Ph.D. student at MIT, and published in the 1952 paper “A Method for the Construction of Minimum-Redundancy Codes”.

Huffman coding uses a specific method for choosing the representation for each symbol, resulting in a prefix code (sometimes called “prefix-free codes”, that is, the bit string representing some particular symbol is never a prefix of the bit string representing any other symbol) that expresses the most common source symbols using shorter strings of bits than are used for less common source symbols. Huffman was able to design the most efficient compression method of this type: no other mapping of individual source symbols to unique strings of bits will produce a smaller average output size when the actual symbol frequencies agree with those used to create the code. A method was later found to design a Huffman code in linear time if input probabilities (also known as weights) are sorted.[citation needed]

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Image to Negative Converter

29 August 2011 Comments off

Requirement
.Net Framework 3.5+

Download :
(Developed by Jonathan Christianto)

Malang Center of Haematology Database System

29 August 2011 Comments off

MCHDS is a web-based software which runs in the storage of patient data and writing reports on the results of medical examinations. MCHDS is a project that I was worked in order to take practical work. The project is designed to Malang Center of Haematology, Saiful Anwar Hospital, Faculty of Medicine, Brawijaya University.

Latest Release :
MCHDS 1.3.0 (2011/10/18)

Download :

Contact Person :
<not available>

Determining Numbers – Positive, Negative, Odd, Even, and Zero

7 July 2011 Comments off
Here I will teach you how to determines positive, negative, zero, odd and even numbers. The following sources are written in Pascal.

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Subdistricts & Villages in Surabaya, ID

19 June 2011 3 comments

Setelah sempat mencari-cari beberapa saat yang lalu untuk data kecamatan dan kelurahan di Surabaya, saya akhirnya menemukannya di situs Pemerintah Kota Surabaya pada sub-domain Kelurahan. Berikut adalah file SQL utk data Provinsi dan Kota/Kabupaten di Indonesia dimana telah dilengkapi dengan data Kecamatan dan Kelurahan di Surabaya.

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Email lokal ke lokal PHP & Mercury

6 June 2011 Comments off

Program yang diperlukan
-    PHP 5.3.1
-    Apache/2.2.14
-    MySQL 5.1.41
-    phpMyAdmin 3.2.4
-    Mercury/32 4.7

Untuk seluruh program yang diperlukan dapat di download secara bundle dalam XAMPP 1.7.3. Untuk versi program terserah, tetapi pastikan terdapat program Mercury/32 4.7.

Direktori htdocs :
E:\XAMPP\HTDOCS\

Tutorial ini berawal dari sebuah pencarian penulis akan suatu masalah, dimana ingin mencoba mengirimkan email dari dan ke server email lokal. Untuk mengirimkan email, dimana biasanya kita menggunakan fungsi mail().

mail(“alamat_tujuan@domain.com”, “Subyek Pesan”, “Ini adalah isi pesan”);

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