Herong's Tutorial Examples

EC Cryptography Tutorials - Herong's Tutorial Examples
This EC (Elliptic Curve) cryptography tutorial book is a collection of notes and sample codes written by the author while he was learning cryptography technologies himself. Topics include rule of chord and point addition on elliptic curves; Abelian groups with additive and multiplicative notations; ... 2019-01-01, 430👍, 1💬

💬 2019-01-01 Yale: Thank you!

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How JSP Pages Are Processed?
This section describes how JSP pages are processed by the Web server. Two key steps are involved: 1) compilation of the JSP page into a Java Servlet class; 2) execution of the compiled class. 2019-05-30, 2792👍, 3💬

💬 2019-05-30 neel ganguly: understandable

💬 2017-01-04 Brian: You're a spa

💬 2015-11-18 santhosh: error

Base64 Encoding Algorithm
This section describes the Base64 encoding algorithm with some simple encoding examples. 2019-05-30, 9513👍, 18💬

💬 2019-02-02 Herong: maher, you can decode it manually. For example, the first 4 bytes can be decoded to 3 bytes, 0x9d873d: base64: n, Y, c, 9 decima...

💬 2019-01-30 maher: how can i decode nYc9rsn50kvkUaZ i try many sites that decode base64 no result

💬 2018-01-12 Name: meaningful comments

💬 2017-08-28 bbb: Please write meaningful comments. Thanks! ☺

💬 2017-08-04 goksoy: thanks

(More comments ...)

UTF-16LE Encoding
This section provides a quick introduction of the UTF-16LE (Unicode Transformation Format - 16-bit Little Endian) encoding for Unicode character set. UTF-16LE is a variation of UTF-16. 2019-05-29, 6643👍, 5💬

💬 2019-04-28 Herong: The last part is needed. Thanks.

💬 2019-04-21 小胖: 最后一段中的"the ZERO WIDTH NO-BREAK SPACE, U+FEFF, character"，是不是不用写呢？

💬 2018-12-29 test: thank

💬 2016-12-21 task go: thank you

Oracle JDBC Drivers Overview
This section provides overview information on Oracle JDBC drivers. 2019-05-28, 102👍, 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, 5311👍, 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...

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Chinese Character String with UTF-8 Encoding
This section providing information on handling Chinese character string literals in UTF-8 encoding. 2019-05-23, 5583👍, 9💬

💬 2019-05-23 明明: 这是一份非常简单的说明书…

💬 2016-03-10 Herong: Developers are welcome! ☺

💬 2016-03-09 as: o i am developer

💬 2016-02-15 test: Hello i am developer

💬 2015-11-07 Herong: 間單 and 间单 are corrected now. Thanks again for your comment. ☺

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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, 168👍, 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, 1333👍, 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

Usage Examples of Public Key Infrastructure
This section provides some usage examples of PKI (Public Key Infrastructure), like HTTPS (Hypertext Transfer Protocol Secure) protocol, digital signature, encryption of documents, digital identification. 2019-05-14, 1605👍, 3💬

💬 2019-05-14 dsdsdasd: Naaaaa

💬 2017-11-30 naveed: nice!!

💬 2017-09-28 Irtza: ok

Downloading and Installing JDK 1.8.0 on Windows
This section provides a tutorial example on how to download and install JDK 1.8.0 (Java SE 8) on a Windows 7 system. A simple Java program was entered, compiled, and executed with the new JDK installation. 2019-05-13, 1322👍, 3💬

💬 2019-05-13 Myo Nyein: thanks

💬 2016-03-10 sudha: thanks

💬 2015-09-22 ram: no

What Is Bitcoin Blockchain
This section describes what is Bitcoin Wallet. 2019-05-12, 123👍, 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, 115👍, 1💬

PDF Printing Version: JDBC Tutorials
Information on how to obtain the PDF version of this book for printing. 2019-05-10, 2302👍, 19💬

💬 2019-05-10 Raed: nice to gut Ducument about JDBC thanks alot.

💬 2018-04-21 Herong: Tony, you are welcome!

💬 2018-04-20 Tony Ekpo: I appreciate your work because it has help me so much connecting to the database, more grace n ur work.

💬 2016-12-16 Herong: Dzung, check your email. You should have it now.

💬 2016-12-16 Dzung Nguyen: I donated $10 through paypal, but I still can't download this book.

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tinyec - Python Library for ECC
This chapter provides tutorial notes on 'tinyec' Python library for ECC. Topics include installing 'tinyec'; creating ec.Curve objects, performing point addition and scalar multiplication. 2019-05-10, 106👍, 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, 117👍, 1💬

Passing Values between JSP Pages
This section provides a tutorial example on how to use different ways to pass values between JSP pages: putting values in 'session' or 'application' objects, or putting values at the end of redirect URL. 2019-05-05, 793👍, 5💬

Inserting BLOB Values with SQL INSERT Statements
This section describes how to insert BLOB values as normal strings using INSERT statements. 2019-04-29, 7332👍, 2💬

First 8336 Hex Digits of PI
This section provides first 8336 hex digits of constant PI, 3.1415927..., needed for Blowfish encryption algorithm. 2019-04-29, 5132👍, 10💬

💬 2019-04-28 Herong: 8336 Hex Digits. Thanks.

💬 2019-04-26 Harry: Do you mean 8336 digits

💬 2016-10-31 Andres: cool

💬 2016-04-07 Tamas Losonczi: This is great

💬 2016-03-15 Bogdan: Thanks!

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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, 5738👍, 5💬

💬 2019-04-28 M1001101: Meaningful comments. Thanks!

💬 2018-09-20 raj: hatt budbak aisa kuch nahin hota bakwas hai ye program

💬 2017-09-16 vivek sharma: good

💬 2017-01-14 Herong: Thanks for the nice comment! ☺

💬 2017-01-13 jasonts2000: Thank you, this is the best example of how to test a JDBC connection to mysql that I have seen posted

Downloading and Installing Notepad++ with XML Tools
This section provides a tutorial example on how to download and install Notepadd++ on Windows system; and how to add the XML Tools Plugin in Notepadd++. 2019-04-25, 141029👍, 64💬

💬 2019-04-25 Thierry: thanks a lot, it helps me a lot.

💬 2019-01-26 Herong: HG, Thanks for sharing the download link!

💬 2019-01-22 HG: For anyone who doesn't want to use Plugin Manager, you can also download files directly from: https://sourceforge.net/projects/n.. .

💬 2018-11-28 Herong: Priya, can you follow instructions provided by Steve Chambers in the "How to install a Notepad++ plugin offline?" stackoverflow ...

💬 2018-11-22 Priya: Downloaded XML tools plugin since the server proxy didnt allow me to install it thru notepad++. Is there a way that I can instal...

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Creating Connections with DataSource Class
This section describes how to create connection objects with the DataSource class. 2019-04-24, 134👍, 3💬

💬 2019-04-24 Hamdan: iam using jdbc 6

💬 2019-04-20 Herong: Hamdan, Which JDBC jar file are you using?

💬 2019-04-16 Hamdan: I have followed it according to the steps above, but I found a problem here Exception: class "com.microsoft.sqlserver.jdbc.ISQLS. ..

Comments on Herong's Tutorial Books
Please share your general comments on my tutorial books here. Comments should not contain hyperlinks to any external Web sites. 2019-04-22, 57521👍, 188💬

💬 2019-02-15 Julia: Nice website!

💬 2017-01-05 SOOZEE PALAMINOV: Dr. Herong ... I am super IMPRESSED with this website ... I found it by accident ... Greatly appreciated and Thank You very Much...

💬 2016-02-12 krishna: type conversion topic with example: [URL removed]

💬 2016-01-17 Herong: @EnigmaVariation0, The current year, 2016 CE (Common Era), also called AD (Anno Domini) 2016) is Chinese AH (Anno Huángdì) 4713....

💬 2015-12-31 Herong: @EnigmaVariation0, thanks for your comment. I will double check the Chinese year #.

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Converting Secret Keys to and from Byte Arrays
This section provides a quick introduction of the SecretKeySpec class and the KeySpec interface. They can be used to convert secret keys into byte arrays to store them in external files. 2019-04-22, 7259👍, 4💬

💬 2019-04-22 xyz: $9$RTHhSlWL7VsguO7dbw4oiHqf6CuOIRhyl K4JGDq.TQF/OIcyeLXNbsPTz3CAW8X

💬 2018-10-20 Herong: Marco, I just did a Google translation on your comment: "I wonder what all this could be". Are you trying to ask a question?

💬 2018-10-16 Marco: mi chiedo che cosa potrebbe essere tutto questo

💬 2015-11-03 cpp: hello

"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, 122👍, 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...

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