EC Cryptography Tutorials - Herong's Tutorial Examples
This EC (Elliptic Curve) cryptography tutorial book is a collection of notes and sample codes written by the author while he was learning cryptography technologies himself. Topics include rule of chord and point addition on elliptic curves; Abelian groups with additive and multiplicative notations; ... 2019-07-06, 904👍, 3💬
piqpr8.c - Generating Hex Digits of PI
A C source code is provided to generate hexadecimal digits of the fractional part of PI (0.1415927...) using the BBP (Bailey–Borwein–Plouffe) formula. 2016-03-25, 867👍, 1💬
JButton - Swing Button Class
This chapter provides tutorial notes and example codes on JButton class. Topics include creating button components with the javax.swing.JButton class; creating buttons with image icons; adding button action handler at the component level and the frame level; adding mouse click handler to handle butt... 2016-03-25, 710👍, 2💬
Installing LG USB Device Driver on Windows
This section provides a tutorial example on how to install the LG USB device driver for LG-P925g Android phone on Windows system. This is needed to test your Android application developed on Windows on LG phones via a USB connection. 2016-03-24, 5691👍, 7💬
Selection Sort Algorithm and Implementation
This chapter provides tutorial notes and codes on the Selection Sort algorithm. Topics include introduction of the Selection Sort algorithm, Java implementation and performance of the Selection Sort algorithm. 2016-03-21, 469👍, 2💬
Introduction of Arithmetic Operations
This section provides a quick introduction of arithmetic operations supported by VBScript: addition, subtraction, multiplication, division, remainder, and exponentiation. 2016-03-20, 566👍, 2💬
VBScript Support in IE Web Browsers
This section provides a quick description of how IE browser execute VBScript codes, provide DOM API for document interaction, and provide events to trigger VBScript code execution. 2016-03-19, 1265👍, 2💬
Key Schedule (Sub-Keys Generation) Algorithm
This section describes the Blowfish Key Schedule (Sub-Keys Generation) algorithm. It uses the binary representation of the fractional portion of constant Pi - 3.1415927... as initial values. 2016-03-17, 1241👍, 2💬
Introduction of Sorting Algorithms
This chapter provides a quick introduction of sorting algorithms. Topics include what is sorting; why sorting is needed; most popular sorting algorithms. 2016-03-17, 693👍, 2💬
Viewing Components of RSA Keys
This section provides a tutorial example on how to view different components of a pair of RSA private key and public key using the OpenSSL command line tool. 2016-03-14, 2007👍, 2💬
Viewing Components of Certificate Signing Request
This section provides a tutorial example on how to view different components of a CSR (Certificate Signing Request) for your public key with OpenSSL. 2016-03-14, 652👍, 3💬
Free Web Services - Herong's Tutorial Examples
This free Web service tutorial book is a collection of notes and sample codes written by the author while he was testing free Web services available on the Internet. Topics include Web service, SOAP, REST, WSDL, WADL, SoapUI, Country codes, currencies, airports, weather, bar codes, mortgage, stock q... 2016-03-14, 361👍, 0💬
JFrame - Main Frame Class
This chapter provides tutorial notes and example codes on JFrame class. Topics include creating frames with sizes and locations; terminating program with its frame is closed; Listing AWT threads; displaying Chinese character on frames; drawing graphics on frames. 2016-03-13, 131👍, 1💬
soapUI 3.0.1 - Web Service Testing Tool
This chapter provides tutorial notes and example codes on soapUI 3.0.1. Topics include soapUI features; downloading and installing soapUI 3.0.1; validating and importing SOAP based WSDL documents; creating and submitting mock requests; creating and running mock Web services. 2016-03-11, 208👍, 0💬
Introduction to WSDL 1.1
This chapter provides a quick introduction of WSDL 1.1. Topics include introduction of 7 layers of components used in WSDL 1.1 to define a Web service; a sample WSDL document defines a helloService Web service with one method, Hello. 2016-03-11, 672👍, 1💬
How come the Chinese calendar seems off by one day?
http://herongyang.com/2016/ - the printable calendar seems off by one day for the 2nd lunar month in 2016. Should start on March 9th, but yours starts on March 8th? Which version is giving the wrong date? I have checked all printable versions and they all show that the 2nd lunar month starts on Marc... 2016-03-10, 3457👍, 0💬
Android 4.0.3 File Systems
This section describes file systems used by the Android 4.0.3 emulator system. 8 file systems are supported in the Android emulator: /dev, /mnt/asec, /mnt/obb, /system, /data, /cache, /mnt/sdcard, and /mnt/secure/asec. 2016-03-08, 101👍, 1💬
This section provides a quick introduction of the UTF-16LE (Unicode Transformation Format - 16-bit L...
This section provides a tutorial example on how to use the getSelection() method to know which butto...
This section provides a tutorial example on how to run Perl scripts on Linux systems. To make a Perl...
This section provides a tutorial example on how to use 'Property Let/Set/Get' procedure to define pu...
This section provides a tutorial example on how to install and configure the PHP OpenSSL module on W...