Herong's Tutorial Examples

Free Chinese Calendar 2026 - Year of the Horse
Want to know when is the 2026 Chinese New Year day? Look for free Chinese calendars for 2026? Chinese New Year Date for Year 2026 ⇒ Free Chinese Calendar 2027 - Year of the Goat ⇐ Free Chinese Calendar 2025 - Year of the Snake ⇑ Chinese New Year Dates in 2021 to 2030 ⇑⇑ Free Chinese Calendars 2026-02-17, ≈159🔥, 1💬

💬 2026-02-17 Mariah Carey: Thanks

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LambdaCalculator.java - Lambda Expression Example
This section provides a tutorial example on using an lambda expression to define a class anonymously implementing a single abstract method interface. An anonymous class and a local class are used as comparisons. 2016-12-17, ∼3261🔥, 1💬

💬 2016-12-17 J.: Thanks.

JDBC-ODBC - Creating New Tables in MS Access Database
This section describes how to create a new table in a MS Access database through the JDBC-ODBC driver. 2022-10-01, ∼3249🔥, 0💬

Chinese Festivals: New Year, Dragon Boat, Mid Autumn, ...
Chinese festivals: Chinese Festivals - Spring Festival Chinese Festivals - Lantern Festival Chinese Festivals - Qingming Festival Chinese Festivals - Dragon Boat Festival Chinese Festivals - Double Seventh Festival Chinese Festivals - Chinese Valentine's Day Chinese Festivals - Chihsi (Chinese Valen... 2021-12-17, ∼3246🔥, 0💬

XSD Schema XML SAX Validator with Error Handler
This section describes a tutorial example on how to create an error handler to be used by the validator to alter the default error handling behavior. 2021-08-26, ∼3242🔥, 5💬

💬 2021-08-26 manglesh: it wouldnt work for complex element with tag. It will stop at the fist error (missing element) and wont report the second missin...

💬 2019-08-02 BirYazilim: Great Help, thnks a lot...

💬 2017-04-26 Pedro A.: Hi Herong, Thanks for the reply. That was my first idea, but what happens is that once it catches the first fatalError, it will ...

💬 2017-04-23 Herong: Pedro, can you try to comment out the "throw e;" statement in the fatalError() method? It should let you capture all fatal error...

💬 2017-04-23 Pedro A.: Thank you for the code. Really useful. I only have one question about it. Imagine that you have more than one fatal error, like ...

Sending and Receiving Cookies - Example
This section provides a tutorial example on how to set and send a cookie with the setcookie() function, and how to receive a cookie with the $_COOKIE array. 2015-10-31, ∼3232🔥, 1💬

💬 2015-10-31 asbak hussain: very useful thnks

Perl Script Conversion Tools
This section describes why and how to convert Perl script files to executable binary files. ActivePerl Dev Kit and Perl2Exe are two popular conversion tools for Windows systems. 2020-02-29, ∼3221🔥, 6💬

💬 2020-02-29 smith: alert(1)

💬 2019-07-21 Herong: rrr, Thanks for sharing your Perl script. But I don't see any benefit of removing BOM from a Unicode text file. Without BOM, the...

💬 2019-07-20 rrr: # program to remove a leading UTF-8 BOM from a file # works both STDIN -> STDOUT and on the spot (with filename as argument) if ...

💬 2016-03-28 de: ~ m/^p(\d+)_.*\

💬 2016-01-27 Herong: Ram, can you tell us what is the purpose of your Perl script?

(More comments ...)

Installing Visual GC Plugin
This section provides a tutorial example on how to install the Visual GC plugin to Java VisualVM and monitor GC activities. 2017-10-25, ∼3219🔥, 4💬

WADL (Web Application Description Language)
This section describes what is WADL (Web Application Description Language), an XML-based file format that describes REST Web services. 2016-04-19, ∼3219🔥, 1💬

💬 2015-07-21 Vigcky: Hello world

"aapt" - Android Asset Packaging Tool
This section describes 'aapt', the Android Asset Packaging Tool, which can be used to list, add and remove files in an APK file, package resources, crunching PNG files, etc. 2015-11-16, ∼3219🔥, 1💬

Block Hash Calculation in Python
This section describes how to calculate Bitcoin block hash in Python. 2023-04-29, ∼3210🔥, 2💬

💬 2018-02-16 Lee: This helped me a lot!

Chinese Character String with Big5 Encoding
This section provides information on handling Chinese character string literals in Big5 encoding. 2015-09-29, ∼3199🔥, 1💬

💬 2015-09-29 你好: 你好

javax.swing.JFileChooser - File Chooser Dialog Box
This section provides a tutorial example on how to use the javax.swing.JFileChooser class to create a file chooser dialog box for the Open command and the Save command. 2016-01-03, ∼3193🔥, 8💬

💬 2016-01-03 Travis: Hello thanks, Yea I fixed the problem with the forgotten import I should have known better just having a problem with the filein...

💬 2015-12-31 Herong: Travis, May be you forget to import the IO package. The "underline in red" means class definition is missing. Try to add the fol...

💬 2015-12-31 Travis: Missing import.java.io was the problem thanks everyone

💬 2015-12-30 Travis: Value is just a string , String rootDir; still have been playing around with it and can't seem to get it going , very odd:(

💬 2015-12-30 Ken: @Travis, what is the value of "rootDir"? Looks like you are trying to get an inputstream on a directory, not a file.

(More comments ...)

Calculate Double-SHA256 Hash with Python
This section describes how to calculate Double-SHA256 hash with Python. 2021-04-11, ∼3185🔥, 2💬

💬 2021-04-11 Max: Great Reference with HEX base, thanks

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, ∼3165🔥, 3💬

💬 2017-07-27 Gustavo: Nice! Meaningful thanks! I just tested in a cluster of JBoss EAP that uses jgroups and multicast.

💬 2017-03-14 anamika: tku very so much

PC Register and Native Method Stack
This section describes PC Registers and Native Method Stacks, which are reserved one per thread. Normal Java applications do not have any significant impact on PC Registers and Native Method Stacks. 2023-07-15, ∼3157🔥, 4💬

💬 2023-07-15 Makhdoom: Great info.

Lucky Wedding Dates: 2020 - Year of the Rat
Where to find lucky wedding dates for year 2020? Lucky Wedding Dates: 2020 - Year of the Rat ⇒ Lucky Wedding Dates: 2021 - 2030 ⇐ Lucky Wedding Dates: 2019 - Year of the Boar ⇑ Lucky Wedding Dates: 2011 - 2020 ⇑⇑ Wedding Date - The Most Important Date of Your Life 2021-09-07, ∼3156🔥, 0💬

Lucky Wedding Dates: 2019 - Year of the Boar
Where to find lucky wedding dates for year 2019? Lucky Wedding Dates: 2019 - Year of the Boar ⇒ Lucky Wedding Dates: 2020 - Year of the Rat ⇐ Lucky Wedding Dates: 2018 - Year of the Dog ⇑ Lucky Wedding Dates: 2011 - 2020 ⇑⇑ Wedding Date - The Most Important Date of Your Life 2021-04-04, ∼3150🔥, 0💬

GetStringAsync() Method Example Program
A tutorial example is provided on how to use GetStringAsync() method in the System.Net.Http.HttpClient class to send a GET request in a child thread as am asynchronous operation. 2024-10-27, ∼3145🔥, 3💬

Audio CD (CD-DA) Tracks and Indexes
This section describes the logical format of tracks and indexes of an audio CD (Compact Disc Digital Audio or CD-DA). 2017-08-21, ∼3142🔥, 2💬

💬 2017-08-11 Herong: If (a,b)=(7,10), a will be 7 and b will be 10. There is no other possibilities.

💬 2017-08-08 CAPTCHA TEST: Let (a,b)=(7,10), what is a+b? This could be 17 if a = 7 and b = 10 thus 7+10=17 However if (a,b)=(7,10) means (a,b) is (7,10) t...

Lucky Wedding Dates: 2018 - Year of the Dog
Where to find lucky wedding dates for year 2018? Lucky Wedding Dates: 2018 - Year of the Dog ⇒ Lucky Wedding Dates: 2019 - Year of the Boar ⇐ Lucky Wedding Dates: 2017 - Year of the Rooster ⇑ Lucky Wedding Dates: 2011 - 2020 ⇑⇑ Wedding Date - The Most Important Date of Your Life 2021-04-04, ∼3138🔥, 0💬

jstack - Detecting Java Thread Deadlocks
This section provides a tutorial example on how to detect Java thread deadlocks with the thread stack trace dump tool, 'jstack'. 2016-02-01, ∼3135🔥, 0💬

"sc.exe query type= driver" - All Device Driver Services
This section provides a tutorial example on how to list all device driver services with 'sc.exe' Service Controller command tool. 2016-10-15, ∼3128🔥, 2💬

💬 2016-10-15 Herong: Jay, I don't know the answer. Hope other visitors can help to explain.

💬 2016-10-14 Jay: How do you interpret this? CHECKPOINT : 0x0

"On Error GoTo 0" - Turning off Error Handling
This section provides a tutorial example on how to use 'On Error GoTo 0' to turn off the error handling flag in a procedure to catch the first runtime error. 2019-12-02, ∼3121🔥, 1💬

💬 2019-12-02 toto: oui

Windows 7: Disable Scheduled Tasks
This section provides a tutorial example on how to review tasks that have been scheduled to run on a Windows 7 system in the background and disable any unwanted tasks. 2016-10-20, ∼3118🔥, 4💬

💬 2016-10-20 Herong: Branksome, your right panel is probably turned off. You can turn it on by clicking the last icon below the menu. You can also ac...

💬 2016-10-18 Branksome: On my Win7 system, there is no right panel with an option to delete. What I would prefer to do is reduce the schedule to run les...

💬 2016-03-30 Herong: David, There is a button on "Task Scheduler" to disable all of them. You should not allow any program to be scheduled on your ho...

💬 2016-03-23 David Betts: Hi, I was looking for a solution that disabled all tasks. However I can now find my way around the entries . I think I will leav...

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