JDBC Tutorials - Herong's Tutorial Examples
This JDBC tutorial book is a collection of notes and sample codes written by the author while he was learning JDBC technology himself. It can be used as a tutorial guide for beginners. Topics include Java, Database, JDBC, Driver, ODBC, Connection, DataSource, SQL, ResultSet, Metadata, Derby, MySQL, ... 2020-03-07, 7064👍, 10💬
GetGeoIP - Get Country by IP Address
This chapter provides a quick introduction of the free Web service, GetGeoIP, returning the country information with a given IP address. Topics include usage description of GetGeoIP; request message sample; response message sample. 2019-01-29, 300👍, 1💬
1953 - Bai Niao Chao Feng (百鸟朝凤) - Hundreds Birds Worshipping The Phoenix
Bai Niao Chao Feng (百鸟朝凤) - Hundreds Birds Worshipping The Phoenix, Suona (唢呐) Solo, composed by Ren Tongxiang from folk tunes (任同祥). Originally performed by Ren Tongxiang (任同祥). 2019-01-28, 371👍, 2💬
GetCitiesByCountry - Usage Description
This section describes the free Web service GetCitiesByCountry provided by WebserviceX.NET. GetCitiesByCountry allows you to retrieve all cities for any given country or territory. 2019-01-26, 3619👍, 3💬
Validating ds:Signature with X.509 Certificate
This section provides a tutorial example on how the SOAP message receiver should validate the digital signatures included in the ds:Signature elements. Digital signatures should be decrypted using public keys included in X.509 certificates passed in the wsse:BinarySecurityToken element. 2019-01-21, 1001👍, 5💬
French Characters in HTML Documents - ISO-8859-1 Encoding
This section provides a tutorial example on how enter and use French characters in HTML documents using Unicode ISO-8859-1 encoding. The HTML document should include a meta tag with charset=ISO-8859-1 and be stored in ANSI format. 2019-01-21, 1855👍, 3💬
Building Chinese Web Sites using PHP
It can be used as a tutorial guide for beginners. Topics include installing PHP and Tomcat; creating PHP pages; displaying pages in Chinese; saving Chinese characters to MySQL database; fetching Chinese characters from MySQL database. 2019-01-21, 3417👍, 6💬
Lock Types and Lock Levels
This section describes 2 types of locks: Read Lock (Shared Lock) and Write Lock (Exclusive Lock), and 3 levels of locks: Table Lock, Row Lock, and Column Lock. 2019-01-02, 3242👍, 2💬
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. 2019-01-01, 1227👍, 2💬
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... 2019-01-01, 2030👍, 1💬
SHA1 Message Digest Algorithm Overview
This section describes the SHA1 algorithm - a 6-step process of padding of '1000...', appending message length, preparing 80 process functions, preparing 80 constants, preparing 5 word buffers, processing input in 512 blocks. 2018-12-28, 12406👍, 7💬
PHP Implementation of DES - mcrypt
This chapter provides tutorial examples and notes about PHP implementation of DES. Topics include introduction of mcrypt library; mcrypt encryption functions; DES encryption and decryption test program and test result. 2018-12-22, 2117👍, 4💬
Using java.net.HttpURLConnection to Send SOAP Messages
This section describes steps to follow if you want to use the java.net.HttpURLConnection class to send out a SOAP XML message. 2018-12-21, 38213👍, 13💬
DES Algorithm Java Implementation
This chapter provides tutorial examples and notes about DES algorithm implementation in Java language. Topics include an example Java implementation of DES encryption and decryption algorithm; test cases of single block cleartext and ciphertext. 2018-12-13, 6992👍, 16💬
What Is Gopher?
This section provides a quick introduction of the Gopher protocol that allows distributed documents to be linked and presented as a hierarchy of items and directories. 2018-12-08, 643👍, 2💬
"async" Function Example
A tutorial example is provided on how to write an 'async' function with Task return type. An 'async' function needs an 'await' expression to trigger a child thread to split executions. 2018-12-08, 165👍, 3💬
Using SHA1 Message Digest in Java
This section provides a tutorial example on how to use SHA1 message digest algorithm in Java. The JDK JCE package offers the SHA1 algorithm through a generic message digest class, javax.security.MessageDigest. 2018-12-04, 17727👍, 11💬
This section provides a tutorial example on how to see the list of trusted root CA (PKI Authorities)...
This section describes the DER (Distinguished Encoding Rules) - A binary format of encoding a data v...
This section describes a tutorial example of a complete SOAP application with both server and client...
This section describes how to download Apache (HTTP Server) 2.2.25 binary distribution for Windows s...
This free book contains Herong's notes and tutorial examples on Chinese GB2312 character set. It pro...