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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, 1380👍, 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, 139👍, 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, 2395👍, 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.

(More comments ...)

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, 7336👍, 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, 5244👍, 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!

(More comments ...)

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, 6216👍, 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, 153079👍, 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...

(More comments ...)

Creating Connections with DataSource Class
This section describes how to create connection objects with the DataSource class.
2019-04-24, 149👍, 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, 58181👍, 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 #.

(More comments ...)

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, 8100👍, 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, 137👍, 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...

Downloading and Installing JDK 1.8
This section describes how to download and install Java SE Development Kit (JDK) 8u45 on a Windows system.
2019-04-16, 9317👍, 6💬

💬 2019-04-16 yacine: thanks

💬 2017-10-09 Ivan: Thanks!

💬 2017-04-03 prathamesh: greaT

💬 2016-10-24 azeem: thanksa

💬 2016-01-11 hari prasath: collage use

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, 284👍, 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...

Outdated: Windows XP Component "Update Root Certificates"
This section describes the process used by Windows XP component, Update Root Certificates, to communicate to Windows Update Web site to fetch a trusted root certificate and install in on the local computer automatically.
2019-04-13, 369👍, 2💬

💬 2019-04-13 Herong: Leo, can you run the "certmgr" command on your Windows XP? It provides functions to install root certificates to your computer.

💬 2019-04-08 Leo: I know this article is outdated, but I'm still looking for a way to update the 'Root certificates' in Windows XP SP3, by install...

What Is DSA (Digital Signature Algorithm)?
This section describes the DSA (Digital Signature Algorithm) algorithm, which consists of 2 parts: generation of a pair of public key and private key; generation and verification of digital signature.
2019-04-09, 26585👍, 16💬

💬 2018-08-29 Shawn: Thanks for the detailed explanation.

💬 2017-10-29 Abi: Very informative

💬 2017-04-01 Herong: T, A double asterisk ** is the exponentiation operation that raise a base to a power.

💬 2017-03-27 t: What is "**"?

💬 2017-03-10 appalaraju: useful

(More comments ...)

Compilation and Execution Process of C Programs
This section describes steps of the compilation and execution process of C programs: preprocessing, compilation, assembly, linking and loading.
2019-04-08, 60494👍, 25💬

💬 2019-04-08 A compiler is a special program: aler(1);

💬 2018-12-22 Ishika Garg: nice

💬 2018-11-29 manasi chavan: Thanks!!!!!!nice

💬 2018-09-15 hardik bhoraniya: nice understanding

💬 2018-05-17 Khan rahil: Thanks

(More comments ...)

RSA Private Key and Public Key Pair Sample
This section provides a tutorial example on how to run JcaKeyPair.java to generate a RSA private key and public key pair sample. Keys are stored PKCS#8 and X.509 encoding formats.
2019-04-03, 619👍, 2💬

💬 2019-03-31 Herong: Thong, if you lost access to your BTC wallet, or lost your BTC wallet, then you lost your BTC asset. There is no way to get it b...

💬 2019-03-29 Thong Ngo: Hi . I forgot the id wallet btc, is there any way to find the id wallet btc no? Thanks .

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, 197👍, 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, 496👍, 2💬

💬 2019-03-31 Herong: challa, I have no idea why the catalog name is null.

💬 2019-03-26 challa: why is the catalog name null for sys tables..can we retreive that as well?

RsaKeyValidator.java for RSA Key Validation
This section provides a tutorial example on how to validate RSA keys by encrypting and decrypting some random sample messages.
2019-04-02, 102👍, 1💬

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