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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.
2019-10-22, 28275👍, 17💬

💬 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 ...)

Installing JSTL 1.2 API JAR File
This section provides a tutorial example on how to install JSTL 1.2 API JAR file on Tomcat 7 server to support JSTL loop and other tags.
2019-10-22, 302👍, 3💬

💬 2019-06-21 koushik: asc

JDBC-ODBC Bridge Driver - sun.jdbc.odbc.JdbcOdbcDriver
This chapter provides tutorial notes on the JDBC-ODBC Bridge driver produced by Sun and DataDirect. Topics include loading JDBC-ODBC Bridge driver; creating a DSN (Data Source Name) with a ODBC driver; Connecting to SQL Server with JDBC-ODBC Bridge.
2019-10-22, 21102👍, 26💬

💬 2019-10-15 felipe: um teste de mensagem

💬 2017-09-12 tilahun bekele: good site

💬 2017-08-27 Herong: Can you try to the 32-bit 1.7JDK?

💬 2017-08-24 jaime: Hi I have created a DSN and the test is Ok. I have this program: import java.sql.*; public class OdbcDsnConnection { public stat...

💬 2017-06-27 Herong: Shubhankar, you can download JDK 1.7. It has JDBC-ODBC bridge included.

(More comments ...)

Audio CD (Compact Disc Digital Audio or CD-DA) Players
This chapter provides notes and tutorials on playing audio CD (Compact Disc Digital Audio or CD-DA). Topics include audio CD player devices, audio CD player software, like Windows Media Player.
2019-10-16, 154👍, 2💬

💬 2019-10-10 Herong: Patricia, you can just insert the CD into the computer. It will play automatically.

💬 2019-10-07 Patricia: How do I get the CD to play. I know nothing about a ripper. I need to listen to the Spanish lessons.

Connect MetaMask to Local "geth" Node
This section describes how to connect MetaMask to the 'geth' on the local host.
2019-10-05, 473👍, 2💬

💬 2019-10-05 Herong: I am in the process of rebuild my local Ethereum node. Can anyone provide help to kbhar?

💬 2019-09-30 kbhar: I am not able to connect to metamask after selecting the localhost 8545 network. I am getting "something went wrong" error. Can ...

"OpenSSL" Viewing Certificates in DER and PEM
This section provides a tutorial example on how to use 'OpenSSL' to view certificates in DER and PEM formats generated by the 'keytool -exportcert' command.
2019-10-05, 38673👍, 7💬

💬 2019-10-05 Herong: Fatin, what are you getting from the output?

💬 2019-09-27 Fatin: Please help me, i cannot get it that way

💬 2017-05-27 Herong: Yes, asn1parse is a nice tool. I will add some examples later.

💬 2017-05-23 poshak: MIIC8DCCAIGgAwIBAgIJAM/+E5HIKoWGMAoG ...

💬 2017-05-23 Herong: Poshak, do you need any help with your certificate?

(More comments ...)

Outdated: Accessing Oracle Server through Web Interface
This section describes how to access an Oracle Server through its Web interface.
2019-10-03, 118👍, 1💬

Creating Procedures with Multiple Queries
This section describes how to create a procedure with multiple queries.
2019-09-27, 3680👍, 2💬

💬 2019-09-27 shubham: very nice

💬 2016-01-12 svr: Really a great article

UTF-8 Encoding Algorithm
This section provides a tutorial example on how to write a programming algorithm to encode characters with UTF-8 encoding.
2019-09-27, 3900👍, 3💬

💬 2019-09-27 Andrew Dillon: This was very useful. It really helped clarify the explanation in the Unicode Specification. Thank you!

💬 2016-03-30 Herong: Deniz, you are welcome!

💬 2016-03-24 Deniz Aktas: Simple and clear, thanks a lot !

Digital Signature Algorithm and Sample Program
This chapter provides tutorial notes and example codes on digital signature. Topics include algorithm and steps of signing a document; algorithm and steps of verifying a signature; digital signature generation and verification sample programs; sample signatures of SHA1withRSA and SHA1withDSA algorit...
2019-09-24, 884👍, 3💬

💬 2016-12-15 vijay: thanks

Microsoft JDBC Driver for SQL Server - sqljdbc42.jar
This chapter provides tutorial notes on sqljdbc42.jar, JDBC Driver 4.2 produced by Microsoft for SQL Server 2014. Topics include downloading and installing Microsoft JDBC Driver 4.2; loading sqljdbc42.jar; creating a connection to SQL Server with port number, instance name and database name; closing...
2019-09-21, 12550👍, 24💬

💬 2019-09-13 rohit: thanks

💬 2018-06-06 khui: thanks

💬 2018-01-07 jesse: thx

💬 2017-11-30 lebronjames: curry good

💬 2017-10-17 suku: hi

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Validating XML Documents with Assigned XSD
This section describes a tutorial example on how to validate an XML document with the assigned XML Schema file (XSD) using XMLPad.
2019-09-19, 125👍, 1💬

Request Differences between SOAP 1.1 and SOAP 1.2
This section describes differences between a SOAP 1.1 request and SOAP 1.2 request for GetSpeech Web service provided by xmlme.com.
2019-09-19, 22192👍, 4💬

💬 2017-04-06 Syed Mohammad: Very Nice Diffrence highlighter in brief

Examples of Unicode Characters
This chapter provides notes and tutorial examples on the Unicode character set. Topics including introduction of Unicode standard, example characters, history of releases, blocks of code points.
2019-09-18, 3557👍, 7💬

💬 2019-06-24 abcd: It's a rainy night

💬 2017-01-20 anynomous: he ha ha

💬 2017-01-05 danish: that is great

Installing Adobe Flash Player Plugin for Chrome
This section provides a tutorial example on how to download and install Adobe Flash Player 13 for Chrome with Adobe Flash Player Installer on a Windows 7 system.
2019-09-18, 152👍, 2💬

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.
2019-09-16, 331👍, 2💬

Checking FTP Server Log File
This section provides a tutorial example on how to check FTP server log file.
2019-09-15, 6971👍, 5💬

💬 2019-09-15 Herong: Steve, Yes. This is from IIS 5.1. I will update it, when I get a chance.

💬 2019-09-12 SteveC: IIS 5.1 was released on Windows XP. Tis information is obsolete (which is why the date has been removed from the #Date line). II...

💬 2018-04-28 Herong: Scott, the IIS settings.

💬 2018-04-27 Scott: if you look at setting...... what settings?

💬 2016-09-25 Humphrey Bogart: meaningful comments

Downloading and Editing WSDL Document
This section provides a tutorial example on how to download the WSDL document from the Web service provider. You can change port.address[@location] to a localhost URL to local testing.
2019-09-15, 25930👍, 15💬

💬 2019-09-15 Herong: Any more information about this Web service?

💬 2019-09-10 previsualizacion: s/view?wsdl

💬 2019-08-23 kaushal: nice

💬 2019-08-09 Mahesh: perfect

💬 2017-12-18 maria de los angeles: thanks, :)

(More comments ...)

Outdated: Downloading and Installing Android SDK R17
This section provides a tutorial example on how to download and install Android SDK (Software Development Kit) Revision 17 on Windows systems.
2019-09-13, 177👍, 2💬

💬 2019-09-13 Carlos: tnx

Differences between "Object" and "Array"
This section provides a quick description of similarities and differences of 'Array' and 'Object'. A tutorial example is provided on how to compare an 'Array' object to an 'Object' object.
2019-09-12, 936👍, 4💬

💬 2019-09-12 jagdish: test

Compiling Multiple Source Code Files Together
This section provides a tutorial example on how to compile multiple C# source code files together.
2019-09-10, 349👍, 1💬

💬 2019-09-10 Tamas: Thank you! It works!

XML Tools Plugin for Notepad++
This chapter provides notes and tutorial examples on XML Tools Plugin for Notepad++. Topics include downloading and installing Notepad++ and XML Tools Plugin; generating pretty print XML format; XSD validation; XSLT transformation.
2019-09-10, 137060👍, 66💬

💬 2019-09-10 xiaolu: Great tool

💬 2019-08-06 Took: Great

💬 2019-08-01 Thanh: nice

💬 2019-02-11 aaa: correcto...

💬 2019-02-07 Ralph Stålberg: Need to format xml to be able to read it

(More comments ...)

Java 8 GC Tutorials - Herong's Tutorial Examples
This book is a collection of tutorial notes and sample codes written by the author while he was learning JVM GC (Garbage Collection) processes. Topics include Java Garbage Collectors, STW (Stop-The-World), Serial Collector, Parallel Collector, Concurrent Collector, G1 Collector, GC Algorithms, Gener...
2019-09-07, 212👍, 1💬

💬 2019-09-07 Venmo: Very helpful. Thanks!

Calculate Double-SHA256 Hash with Python
This section describes how to calculate Double-SHA256 hash with Python.
2019-09-05, 144👍, 1💬

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