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, ≈157🔥, 1💬

💬 2026-02-17 Mariah Carey: Thanks

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Oracle JDBC Drivers Overview
This section provides overview information on Oracle JDBC drivers. 2019-05-28, ∼100🔥, 1💬

Removing IE Addon "Skype Browser Helper"
This section provides a tutorial example on how to disable and remove 'Skype Browser Helper' addon from Internet Explorer. 2019-05-27, ∼8646🔥, 7💬

💬 2019-05-27 Daniel Parker: Hi Herongyang.com, How are you doing today? I'm sure you have been reached regarding this before but our value proposition is ve...

💬 2018-05-07 Daniel Parker: Hi Herongyang.com, How are you doing today? I'm sure you have been contacted regarding this before but our value proposition is ...

💬 2017-07-15 Herong: Thomas, "Skype Browser Helper" add-on is part of the "Skype Click to Call" installed program. So uninstall "Skype Click to Call"...

💬 2017-07-14 Thomas: I also notice that these programs DO NOT APPEAR under Windows Programs and Features. Thus, your suggestion to go there and remov...

💬 2017-07-14 Thomas: Firstly, you mention how to disable the add-on, NOT how to REMOVE IT. Secondly, why are you talking about PDF Link Helper at all...

(More comments ...)

Retrieving Query Parameters and Headers
This section provides a tutorial example on how to retrieve input parameters from query string and request content, and retrieve request headers. 2019-05-21, ∼2475🔥, 1💬

💬 2019-05-21 Willaim: Hello There

binmode() - Opening Files for Binary Input
This section describes steps on how to open file for binary input using open(), binmode() and read() functions. 2019-05-19, ∼2458🔥, 3💬

💬 2019-05-18 Herong: Anuj, Yes, you can read file without binmode, even if the file is binary. But the input byte stream will be interpreted as encod...

💬 2019-05-15 Anuj Jain: can we read file without binmode if a file is binary

💬 2016-01-13 Bin: The quick brown fox jumps over the lazy dog

What Is Bitcoin Blockchain
This section describes what is Bitcoin Wallet. 2019-05-12, ∼515🔥, 2💬

💬 2019-05-12 Herong: Julian, Nice to meet you! Hope the information is useful to you.

💬 2019-05-05 JULIAN: I'm not sure how I found your website but I'm glad I did. It's full of information about a lot of subjects all in one place.

Client-Side Scripts for Event Handling
This section provides an overview of client-side scripting for event handling. Scripts registered as event handlers will be executed when events are triggered by the end user on the final Web page. 2019-05-10, ∼567🔥, 1💬

"keytool" Generating Maria's Private Key
This section provides a tutorial example on how to use 'keytool' to generate a pair of private key and public key. 2019-05-08, ∼380🔥, 1💬

Inserting BLOB Values with SQL INSERT Statements
This section describes how to insert BLOB values as normal strings using INSERT statements. 2019-04-29, ∼107🔥, 2💬

Loading JDBC Driver for MySQL Server
This section describes how to load the MySQL JDBC driver class - mysql-connector-java-5.1.36-bi n.jar. 2019-04-28, ∼100🔥, 5💬

Creating Connections with DataSource Class
This section describes how to create connection objects with the DataSource class. 2019-04-24, ∼166🔥, 3💬

"Character" Class with Unicode Utility Methods
This section provides an introduction on 'Character' class static methods added since J2SE 5.0 as Unicode utility methods. 2019-04-20, ∼367🔥, 2💬

💬 2019-04-20 Herong: Isie, it will be corrected in the next update. Thanks.

💬 2019-04-17 lsie: There is a typo in "static boolean isDefined(int codePoint)" paragraph. "tt has an entry in the UnicodeData file", "tt" should b...

What Is HTTPS (Hypertext Transfer Protocol Secure)?
This section describes what is HTTPS (Hypertext Transfer Protocol Secure) - A communication protocol that uses the HTTP and the SSL/TLS protocols to provide encrypted communication and secure identification of a Web server. 2019-04-13, ∼1125🔥, 2💬

💬 2019-04-13 Herong: Maybe some other website did it, not my site. ☺

💬 2019-04-10 arlyneysiak@gmail.com: Your site erased my entire history. I'd like to get my history information back. Can you tell me how to do this. I would greatly...

What Is Block Cipher?
This section describes what is block cipher - An encryption scheme in which 'the clear text is broken up into blocks of fixed length, and encrypted one block at a time'. 2019-04-03, ∼686🔥, 2💬

💬 2019-03-31 Herong: Patrick, f() represents a generic block cipher process that convert a block of plaintext into a block of ciphertext with a secre...

💬 2019-03-26 Patrick: if f is a block cipher, then how can f(R0,k1) be performed? f is likely to be something like a function?

Listing All Schemas - getSchemas()
This section describes how to get a list of all schemas in the current database on the SQL Server through the DatabaseMetaData object. 2019-04-03, ∼222🔥, 2💬

Free Chinese Calendar 2019 - Year of the Boar
Want to know when is the 2019 Chinese New Year day? Look for free Chinese calendars for 2019? Chinese New Year Date for Year 2019 ⇒ Free Chinese Calendar 2020 - Year of the Rat ⇐ Free Chinese Calendar 2018 - Year of the Dog ⇑ Free Chinese Calendars: 2011 - 2020 ⇑⇑ Free Chinese Calendars 2019-03-23, ≈38🔥, 1💬

💬 2019-01-10 嚒嚒达: 过年了

java.security.KeyFactory - Reading Encoded Keys
This section describes the java.security.KeyFactory class, which allows you to convert key spec objects back to key objects. Full process of reading and converting encoded key files back to key objects are also provided. 2019-03-23, ∼961🔥, 2💬

💬 2019-03-23 Herong: See the next tutorial " JcaKeyFactoryTest.java - Key Factory Test Program " for code samples.

💬 2019-03-13 wubba lubba dub dub: code samples along with this would've been helpful

2600: Miscellaneous Symbols
This section provides a quick summary of the Unicode code point block: 'Miscellaneous Symbols', which contains 160 code points to represent more miscellaneous symbols. 2019-03-02, ∼100🔥, 2💬

Removing IE Addon "Groove GFS Browser Helper"
This section provides a tutorial example on how to disable and remove 'Groove GFS Browser Helper' addon from Internet Explorer. 2019-03-02, ∼4394🔥, 4💬

💬 2019-03-02 Herong: Kurteb, try to close IE, then delete the file. Or restart your PC in safe mode to delete the file.

💬 2019-02-26 Kurteb: after disabling it, cannot delete it from the folder, even using Revo or Ccleaner.

💬 2017-07-15 Herong: EEZEE66, maybe ccleaner is just reporting that the registry entry of the plug is in still exists, not actively running in IE.

💬 2017-07-14 EEZEE66: I found that even disabling it in manage add ons really didn't turn it off. I used ccleaner in tools choose browser plug ins and...

Example Vector of AES Encryption
An example vector of AES-128 encryption is presented. Round keys and state values of all 11 rounds are included to help users to verify their AES implementation. 2019-02-24, ∼1763🔥, 1💬

"keytool" Exporting Certificates in DER and PEM
This section provides a tutorial example on how to export certificates in DER and PEM format using the 'keytool -exportcert' command. 2019-02-20, ≈53🔥, 5💬

💬 2019-02-20 Ajay Singh: Ok

💬 2018-10-06 Herong: Srinivas, what are those special characters? Are they appended to the keystore file or the certificate file?

💬 2018-09-25 Srinivas: After generating certificate, there are some special characters appended.

💬 2016-06-27 Herong: Mandar, can you double check your command? The error indicates you entered a wrong password.

💬 2016-06-23 Mandar: converting to der is sucessful. while converting to pem, I am getting below error. keytool error: java.io.IOException: Keystore ...

Cryptography Terminology
This section provides descriptions on some commonly used cryptography terminologies 2019-02-18, ∼3561🔥, 2💬

💬 2019-02-18 Hh: <body bgcolor="red">

💬 2015-10-24 dexter aparicio: this site is my favorite reference on cryptography topics

AES Key Schedule Example
An example of the AES key schedule is provided to illustrate how 11 round keys get calculate from a given 128-bit cipher key. 2019-02-18, ∼5407🔥, 1💬

💬 2019-02-18 Ggf: hello

"adb install" and "adb uninstall" Commands
This section describes 'adb install' and 'adb uninstall' commands that allows you to install an application APK package and uninstall it on the connected emulator or device. 2019-02-12, ∼7798🔥, 4💬

💬 2019-02-12 jack: thanks.

💬 2017-04-15 Herong: Joy, If you want to close the command prompt window, just click the "x" on the top right corner of the window. Did you successfu...

💬 2017-04-13 Joy Walter: I have tried the above but the Command Prompt window opened by Android SDK still exists. I am trying to uninstall, can you help?

💬 2016-03-11 Unknown: Thanks

c:out Action Tag
This section describes the c:out action tag in the JSTL Core library. c:out allows you to generate a dynamic data using an EL (Expression Language) expression in JSP pages. 2019-01-30, ∼315🔥, 1💬

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