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, 392👍, 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, 573👍, 2💬
Java Exception: "java.lang.OutOfMemoryError: Java heap space"
This section provides a tutorial example on how JVM expands the Heap space to allocate more objects and leads to the 'java.lang.OutOfMemoryError: Java heap space' Java exception, if it is not allowed to expand any more. 2018-06-24, 143👍, 1💬
Scripting Runtime DLL Library Overview
This section describes the Scripting Runtime DLL library, scrrun.dll, which offers Dictionary objects to store pairs of keys and values. scrrun.dll also offers FileSystemObject objects for you to manage local file systems. 2018-06-17, 236👍, 2💬
64-bit RSA Key Validated by RsaKeyValidator.java
This section provides a tutorial example on how a 64-bit RSA key is validated by RsaKeyValidator.java with 3 rounds of encryption and decryption tests. 2018-06-09, 209👍, 2💬
What Is "leader" Formatting Object?
This section describes 'leader' formatting object, which is an inline-level formatting object that generates an inline area with flexible width with a repeating pattern to fill gaps between other inline areas. 2018-06-09, 191👍, 2💬
Microsoft JDBC Driver for SQL Server - sqljdbc42.jar
This chapter provides tutorial notes on sqljdbc42.jar, JDBC Driver 4.2 produced by Microsoft for SQL Server 2014. Topics include downloading and installing Microsoft JDBC Driver 4.2; loading sqljdbc42.jar; creating a connection to SQL Server with port number, instance name and database name; closing... 2018-06-06, 10013👍, 22💬
Downloading and Installing JDK 1.7.0 on Windows
This section provides a tutorial example on how to download and install JDK 1.7.0 (Java SE 7) on a Windows XP system. A simple Java program was entered, compiled, and executed with the new JDK installation. 2018-06-05, 5249👍, 4💬
2030-2040 Lunar Calendar
I've created Chinese Lunar calendars for my Chinese partner for ten years but your website calendars end at 2029 (http://www.herongyang.com/202 9/2029_chinese_calendar_v3.pdf )Can you please create more for me? firstname.lastname@example.org Sure, just give me a few days. - Herong 2018-06-01, 646👍, 0💬
DBM Database Example - Book Records with Multiple Fields
This section provides a tutorial example of using DBM database files to build book records with multiple fields by joining them into a single string value. 2018-05-31, 143👍, 1💬
Showing Services under Each Process
This section provides a tutorial example on how to use command 'tasklist' to show all services under each running process with the service option '/SVC'. 2018-05-19, 168👍, 2💬
System.setProperty() - Setting Your Own Properties
This section provides a tutorial example on how to modify system properties provided by the JVM, and set your own properties into the system property map. 2018-05-15, 206👍, 2💬
This web site provides a collection of about 40 free tutorial books on programming languages, Web applications, database, Chinese language and other topics. See the site map for a complete list of all tutorial books. 2018-05-14, 23027👍, 15💬
Illustration of DSA Algorithm: p,q=7,3
This section provides a tutorial example to illustrate how DSA digital signature algorithm works with small prime modulus p=7 and prime divisor q=3. 2018-04-24, 2518👍, 5💬
"-XX:+PrintGCDetails" - Garbage Collection Logging
This section describes HotSpot JVM options to generate garbage collection logging messages. It also describes log message format to help us understand what the JVM is telling us. 2018-04-23, 348👍, 1💬
Using WSDL2Java to Generate Web Service Stub Classes
This chapter provides tutorial notes and example codes on WSDL2Java. Topics include using the WSDL2Java tool included in Axis2 1.4.1; generating client side stub classes; using stub and data type classes; testing stub classes with XML document and RPC method based Web services. 2018-04-22, 11450👍, 9💬
SOAP Web Service and SoapUI
This chapter provides tutorial notes and example codes on testing SOAP Web services with SoapUI. Topics include introduction of SOAP protocol and WSDL documents; creating SOAP projects by loading WSDL documents in SoapUI; submitting SOAP Web service requests; viewing HTTP request and response raw da... 2018-04-21, 208👍, 2💬
This section provides a tutorial example on how to use 'keytool' to import certificates in DER and P...
This section provides a tutorial example on how the SOAP message receiver should validate the passwo...
This section provides a tutorial example on how to write a sample program to create a SSL client soc...
This cryptography tutorial book is a collection of notes and sample codes written by the author whil...
This section describes a tutorial example of a complete SOAP application with both server and client...