Java GC Tutorials - Herong's Tutorial Examples
This book is a collection of tutorial notes and sample codes written by the author while he was learning JVM GC (Garbage Collection) processes. Topics include Java Garbage Collectors, STW (Stop-The-World), Serial Collector, Parallel Collector, Concurrent Collector, G1 Collector, GC Algorithms, Gener... 2018-06-17, 405👍, 1💬
Ethereum Tutorials - Herong's Tutorial Notes
This free book is a collection of tutorials and notes on Ethereum and blockchain. Topics include Blockchain, Ethereum, Cryptocurrency, Mining, MetaMask, Wallet. 2018-05-11, 576👍, 2💬
Current Time in Milliseconds and Nanoseconds
This section provides a tutorial example on how to obtain the current time in milliseconds and nanoseconds using currentTimeMillis() and nanoTime() methods. 2017-08-09, 140👍, 1💬
Cryptography Tutorials - Herong's Tutorial Examples
This cryptography tutorial book is a collection of notes and sample codes written by the author while he was learning cryptography technologies himself. Topics include AES, blowfish, certificate, cipher, decryption, DES, digest, encryption, keytool, MD5, OpenSSL, PEM, PKCS#8, PKCS#12, private key, p... 2017-08-05, 22197👍, 4💬
SAAJ - SOAP with Attachments API for Java
This chapter provides notes and tutorials on SAAJ (SOAP with Attachments API for Java). Topics include SAAJ specification and reference implementation; creating a SOAPConnection object; creating a SOAPMessage object; populating SOAP body; adding namespace for SOAP body elements; adding SOAPAction he... 2017-08-05, 437👍, 2💬
Android Debug Bridge (adb) Tool
This section describes commands and options supported by the 'adb' tool. The 'adb help' command can give you details on how to use other 'adb' commands and options. 2017-08-05, 1960👍, 2💬
Android Tutorials - Herong's Tutorial Examples
This free book is a collection of notes and sample codes written by the author while he was learning Android system. Topics include AAPT, Android, ADB, API, Dalvik, emulator, Java, layout, logcat, shell, SDK, USB, view. 2017-08-01, 1865👍, 1💬
Input Chinese Text Data from Web Forms
This chapter provides tutorial notes on input Chinese text data from Web forms. Topics include creating Web form; receiving Chinese input text data with PHP the $_REQUEST array; inputting Chinese text with UTF-8, GB18030, and Big5 encodings; copying and pasting Chinese text on Web forms. 2017-07-30, 411👍, 5💬
SoapUI Configuration for Username Token
This section provides a tutorial example on how to create a configuration entry to support WS-Security username token with '#PasswordDigest' password type using SoapUI. 2017-07-28, 176👍, 8💬
MulticastListener.java - A Simple Multicast Listener Program
This section provides a tutorial example on how to write a simple Java test program to join any given multicast group and listen to incoming messages. 2017-07-27, 1460👍, 3💬
PHP Tutorials - Herong's Tutorial Examples
This free PHP tutorial book is a collection of notes and sample codes written by the author while he was learning PHP himself. It can be used as a tutorial guide for beginners or a reference book for experienced developers. Topics include PHP, array, CGI, CLI, class, cookie, database, directory, fil... 2017-07-22, 3041👍, 2💬
XML Messages over Socket Connections
This section describes the XML message communication model - where client and server send and receive XML messages over socket communication connections. 2017-07-20, 1368👍, 5💬
JSSE - Java Implementation of SSL and TLS
This section describes the JSSE (Java Secure Socket Extension) package, which provides a Java implementation of the SSL and TLS protocols. 2017-07-18, 385👍, 1💬
Digital Signature Algorithm and Sample Program
This chapter provides tutorial notes and example codes on digital signature. Topics include algorithm and steps of signing a document; algorithm and steps of verifying a signature; digital signature generation and verification sample programs; sample signatures of SHA1withRSA and SHA1withDSA algorit... 2017-07-17, 731👍, 2💬
Example - Page-Break-with-Header.fo
This section provides a tutorial example of an XSL-FO document structure, Page-Break-with-Header.fo, which declares a simple page layout with a body region and a header region. It also specifies a flow of blocks to be presented in the body region in a sequence of 2 pages with static header block on ... 2017-07-17, 311👍, 2💬
Missing Emulator Engine Program for 'arm' CPUS
This section provides a tutorial example showing the error of 'Missing emulator engine program for arm CPUS' when starting an Android emulator. This is caused missing emulator-arm.exe file in tools folder caused by anti-virus auto delete virus infected files. 2017-07-17, 3381👍, 3💬
This section provides a quick introduction of the UTF-16BE (Unicode Transformation Format - 16-bit Big Endian) encoding for Unicode character set. UTF-16BE is a variation of UTF-16. 2017-07-14, 2682👍, 3💬
"adb logcat" Command Options and Log Buffers
This section describes the 'adb logcat' command options to dump and manage log buffers: main, events, and radio. An example is given to dump logs into a set of rotated log files. 2017-07-11, 2254👍, 2💬
This section describes 'adb push' and 'adb pull' commands, which allows you to copy files to and fro...
This section provides a tutorial example on how to use 'OpenSSL' to view certificates in DER and PEM...
This section describes DES (Data Encryption Standard) algorithm - A 16-round Feistel cipher with blo...
This section provides a tutorial example on how to install and configure the PHP OpenSSL module on W...
This section describes a tutorial example of a complete SOAP application with both server and client...