XML Tutorials - Herong's Tutorial Examples
This XML tutorial book is a collection of notes and sample codes written by the author while he was learning XML himself. Topics include introduction to XML, DTD (Document Type Definition), XSD (XML Schema Definition), XPath (XML Path Language), XSL (Extensible Stylesheet Language), XSLT (XSL Transf... 2023-03-09, 11258👍, 3💬
💬 2022-07-22 Helen: This is very helpful!
💬 2016-05-07 mehari: this tutorials helps many trainers through out the world, thanks!
MolToImage/MolToFile - Molecule PNG Image
This section provides a tutorial example on how to use rdkit.Chem.Draw.MolToImage(m) and rdkit.Chem.Draw.MolToFile(m, f) methods to generate molecule images in PNG format and store them in PIL objects or files. 2022-10-01, 430👍, 0💬
jar - JAR File Tool Command and Options
This section describes the 'jar' command to manage JAR files. 'jar' command syntax and options are provided. 2022-10-01, 428👍, 0💬
SELinux Security Context on /var/www/html
This section provides a tutorial example on how to change the SELinux security context type on sub directories inside /var/www/html to allow new files to be created by PHP scripts running on the Apache Web server on CentOS systems. 2022-10-01, 424👍, 0💬
Cancer - The Crab, The Fourth Zodiac Sign
This section describes the fourth zodiac sign, Cancer, the Crab. 2022-10-01, 422👍, 0💬
Deleting Root CA Certificates from Google Chrome
This section provides a tutorial example on how to delete a certificate from Google Chrome. Deleted certificate can be re-installed back from a certificate file. 2022-10-01, 421👍, 0💬
Install JDK with "yum" Command
This section provides a tutorial on how to download and install JDK packages using 'yum' command on CentOS systems. It will automatically install dependencies. 2022-10-01, 416👍, 0💬
Export Private Key and Retire MetaMask
This section describes how to export the private key from MetaMask and stop using it. 2022-10-01, 416👍, 0💬
Sagittarius - The Archer, The Ninth Zodiac Sign
This section describes the Ninth zodiac sign, Sagittarius, the Archer. 2022-10-01, 411👍, 0💬
Parallel Collector - "+XX:+UseParallelGC"
This chapter provides tutorial notes and example codes on the Parallel Collector specified by the '+XX:+UseParallelGC' JVM option. Topics include introduction to Parallel Collector log message format; multiple parallel GC threads; '-XX:+UseAdaptiveSizePolicy' option to dynamically changing 'eden', '... 2022-10-01, 407👍, 0💬
Archived: Downloading and Installing JDK 1.5.0 on Windows
This section provides a tutorial example on how to download and install JDK (or J2SE) 1.5.0 on a Windows XP system. A simple Java program was entered, compiled, and executed with the new JDK installation. 2022-10-01, 405👍, 0💬
Concurrent Mark-Sweep (CMS) Collector - "+XX:+UseConcMarkSweepGC"
This chapter provides tutorial notes and example codes on the Concurrent Mark-Sweep Collector specified by the '+XX:+UseConcMarkSweepGC' JVM option. Topics include introduction to Concurrent Mark-Sweep (CMS) Collector; CMS Collector log message format; demonstration of reduction of stop-the-world by... 2022-10-01, 404👍, 0💬
What Is Apache™ FOP?
This section describes Apache™ FOP, which is an XSL-FO (eXtensible Stylesheet Language - Formatting Objects) processor developed by Apache™ Software Foundation. 2022-10-01, 403👍, 0💬
"-XX:TargetSurvivorRatio" - Second Tenuring Condition
This section describes the '-XX:TargetSurvivorRatio' JVM option, with sets the maximum survivor space usage percentage. When this limit is reached, all remaining live objects will be promoted to Tenured generation regardless of their age. 2022-10-01, 403👍, 0💬
DOMValidator.java - Validating XML with DTD using DOM
This section provides a tutorial example on how to use DOM API provided in JDK 1.4 to write a Java program to validate an XML document against the specified DTD document type. 2022-10-01, 402👍, 0💬
"-XX:+PrintFlagsFinal" - Print JVM Options
This section describes the '-XX:+PrintFlagsFinal' JVM option, which prints all options and their values used by the JVM. 2022-10-01, 400👍, 0💬
Configure Mozilla Thunderbird to Use LDAP
This section provides a tutorial example on how to configure and use LDAP server to provide email addresses in Mozilla Thunderbird. 2022-10-01, 398👍, 0💬
Computer History Notes - Herong's Tutorial Notes
This book is a collection of notes on computer history. Topics include: 1957: FORTRAN Language by IBM; 1970: UNIX OS by AT&T Bell Labs; 1971: FTP by Abhay Bhushan; 1972: C Language by Dennis Ritchie; 1976: vi Editor by Bill Joy; 1977: Apple II by Steve Jobs and Steve Wozniak; 1977: The Bourn... 2022-10-01, 397👍, 0💬
MySQL Data Directory Initialization
Tutorial example on how to initialize the MySQL server data directory with the 'mysqld --initialize-insecure' command, which will create a root user without password. 2022-10-01, 396👍, 0💬
Linux Tutorials - Herong's Tutorial Examples
This book is a collection of notes and sample codes written by the author while he was learning Linux systems. Topics include using Cockpit Web portal for admin tasks; using network configuration and security firewall; managing users and groups; managing files and directories; managing NTFS, CIFS, E... 2022-10-01, 391👍, 0💬
Capricorn - The Goat, The Tenth Zodiac Sign
This section describes the tenth zodiac sign, Capricorn, the Goat. 2022-10-01, 388👍, 0💬
Pisces - The Fish, The Twelfth Zodiac Sign
This section describes the twelfth zodiac sign, Pisces, the Fish. 2022-10-01, 385👍, 0💬
"jar --extract" - Extracting Files from JAR File
This section provides a tutorial example on how to extract files out of a JAR file with the 'jar --extract' command. 2022-10-01, 384👍, 0💬
Table Cell Borders Collapsed and Separated
This section provides a tutorial example on how to create table with cell borders collapsed and separated. The table[@border-collapse] attribute takes two values: collapse and separate. 2022-10-01, 384👍, 0💬
This section provides a tutorial example on how to create a configuration entry to support SOAP mess...
Chinese Horoscopes - Personality: Chinese Horoscopes - The Mouse/Rat Personality Chinese Horoscopes ...
Notes and Tools on Chinese Language and Culture Are you interested in learning Chinese language and ...
This section provides a tutorial example on how to download and install JDK (or J2SE) 1.3.1 on a Win...
This chapter provides notes and tutorial examples on GB18030 character set and encoding. Topics incl...