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Unicode 8.0 Character Samples
Some samples of characters added in Unicode 8.0 are provided here for the purpose of demonstration or performing browser testing. 2022-10-01, ∼271🔥, 0💬
Information in $_GET and $_REQUEST
This section provides a tutorial example on how to dump information stored in the $_GET array and the $_REQUEST array. 2022-10-01, ∼271🔥, 0💬
Verify Certificate Signed by My CA on macOS
This section provides a tutorial example on how to verify certificate signed with my private key and my root CA certificate on macOS using Keychain Access. 2022-10-01, ∼271🔥, 0💬
Operators and Expressions
This section provides descriptions on operators and expressions, including arithmetic, comparison, logical, bitwise, and assignment operators. 2022-10-01, ∼271🔥, 0💬
JSP Document - JSP Version Error
This section provides tutorial example on how to verify what JSP versions are supported by Tomcat server using an invalid version number in a JSP Document. 2022-10-01, ∼271🔥, 0💬
Code39 - Usage Description
This section describes the free Web service Code39 provided by WebserviceX.NET. Code39 allows you to generate bar code images in Code 39 (also called Code 3 of 9) format. 2022-10-01, ∼271🔥, 0💬
LatLonListZipCode - Request Message Sample
This section provides a request message sample of LatLonListZipCode Web service. 2022-10-01, ∼271🔥, 0💬
The Solar System
This section provides some basic knowledge of the solar system. 2022-10-01, ∼271🔥, 0💬
Constellations
This chapter provides brief introduction of constellations. 2022-10-01, ∼271🔥, 0💬
What Is X Window System
This section provides a quick introduction of the X Window System that offers a graphical user interface framework for any user applications. 2022-10-01, ∼271🔥, 0💬
WHERE Clause of a SELECT Statement
This section provides tutorial examples on how to use the WHERE clause to filter rows out of the base table in a SELECT statement. 2022-10-01, ∼271🔥, 0💬
Encoding-Convertor.php - Encoding Conversion Test
This section provides a tutorial example to restore corrupted Chinese text with different suggested solutions. 2022-10-01, ∼271🔥, 0💬
4-Thread Miner not Able to Mine Blocks
This section describes the 4-thread miner not able to mine a new block. 2022-10-01, ∼271🔥, 0💬
Cron Daemon, Table and Jobs
This section describes what is cron daemon and its related cron tables/jobs. 2022-10-01, ∼271🔥, 0💬
Reference Citations in 2024
This is a collection of reference citations to Herong's tutorials on the Internet in 2024. 2025-01-07, ∼270🔥, 0💬
ActivityLog Test - Activity Paused and Resumed
This section tries to test activity lifecycle with the ActivityLog application in case user pauses the activity and resumes it later. 2022-12-10, ∼270🔥, 1💬
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