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, 414👍, 1💬

💬 2019-01-01 Yale: Thank you!

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The Celestial Meridian and Zenith
This section describes the celestial meridian and zenith. 2017-11-13, 542👍, 1💬

💬 2017-11-13 Kudz: Very Helpful!

How Secure Is RSA Algorithm?
This section discusses the security of RSA public key encryption algorithm. RSA private key is not 100% secure. But if the private key uses larger value of n = p*q, it will take a very long time to crack the private key. 2017-11-10, 970👍, 2💬

💬 2017-11-10 Anonymous: LOLZZZ

"base64Binary" Datatype Values and Representations
This section describes the built-in primitive datatype, 'base64Binary' that represents binary data represented in Base64 encoding. Whitespaces are allowed and removed. 2017-11-08, 6499👍, 3💬

💬 2015-10-01 Herong: Harsh, if you are getting an image as a Base64Binary element in an XML file, you need to save it in a file, run Base64 decode on...

💬 2015-09-30 Harsh: I am getting output in base64binary now i want to print that image to the printer how can i do it?

DSA 512-bit and 1024-bit Key Pair Examples
This section provides 2 DSA key pair examples, 512-bit and 1024-bit, using DsaKeyGenerator.java running JDK 1.6. 2017-11-08, 472👍, 1💬

💬 2017-11-08 abc: ok

PDF Printing Version: XML Tutorials
Information on how to obtain the PDF version of this book for printing. 2017-11-07, 1177👍, 3💬

💬 2017-11-07 amarendra: thanks for xml tutorials

💬 2017-04-09 Rajesh: Very nice..Thanks

💬 2016-02-10 Sanjay Kumar: This books looks very helpful for XML editing and validation against XSDs.

$instance Statement - Define Instance Template
This section describes the $instance statement for defining instance template. 2017-11-06, 137👍, 1💬

💬 2017-11-06 Vincent: Concept is good!

Building Your Own Web Browser
This section provides a tutorial example on how to use the saveWebArchive() method to save Web page content in WebView to Web archive files in the application's files folder. 2017-11-05, 1001👍, 2💬

💬 2017-11-05 Herong: Igor, the API document is not very clear if saveWebArchive() is asynchronous method or not. But you can write some print stateme...

💬 2017-11-02 Igor Ganapolsky: Does `saveWebArchive()` have to be done asynchronously on a non-ui thread?

Chinese Calendar Program in java
This section provides a Chinese calendar program in Java language using using astronomical data obtained from eleworld.com. 2017-11-05, 1674👍, 4💬

💬 2017-11-05 Herong: Steven, good to know. Thanks.

💬 2017-11-05 Steven: Thanks for the sharing. I've implemented in R https://github.com/stchau4work/chine seCalendar

💬 2017-05-27 Herong: Matthew, do you want to implement the whole thing in Microsoft Access, or just the data part?

💬 2017-05-25 Matthew: This looks great! Do you have any advice on implementing this into a Microsoft Access database? Any help would be appreciated.

Installing OpenSSL on Windows
This section provides a tutorial example on how to install OpenSSL on a Windows system. 2017-10-29, 43839👍, 18💬

💬 2017-10-29 Max: Te possino! How I obtain the .o, .h files to use like include in my .c mail file?

💬 2017-02-03 Jim: Now run along...

💬 2017-02-03 Jim: If I did this just once we would not be even, cause you did it once when you put it up here..

💬 2016-12-19 red: Please write meaningful comments. Thanks!

💬 2016-12-19 Thank: Thanks!

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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, 2132👍, 4💬

Conditional "elseif" Statement
This section describes what is a conditional 'elseif' statement in H language. 2017-10-24, 125👍, 2💬

💬 2017-10-24 Herong: Vijay, $elsif is an option. But I strongly suggest we use full words, no abbreviations. So we don't have to guess.

💬 2017-10-18 Vijay: Why not using "elsif" as the keyword?

Running Perl Scripts on Linux Systems
This section provides a tutorial example on how to run Perl scripts on Linux systems. To make a Perl script file executable, you need to add '#!/usr/bin/perl' to the beginning of the script. 2017-10-24, 14413👍, 15💬

💬 2017-10-24 Herong: sdre, what is the issue are you referring to?

💬 2017-10-23 sdre: That's an issue with the Perl script, not with running the script itself, and it deserves another question (not here, on Stack O...

💬 2017-09-20 Herong: >perl hello.prg should work.

💬 2017-09-15 Purushottam: >perl hello.prg in the above line .prg is correct or it is .pl ??

💬 2017-04-03 john honaii.....: heeeeeheeeee

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XML Tutorials - Herong's Tutorial Examples
This free XML tutorial book is a collection of notes and sample codes written by the author while he was learning XML himself, an ideal tutorial guide for beginners. Topics include DOM, DTD, J2SDK, Java, SAX, Syntax, Templates, XML, XPath, XSD, XSL, XSLT, XSL-FO. 2017-10-15, 7001👍, 2💬

💬 2016-05-07 mehari: this tutorials helps many trainers through out the world, thanks!

💬 2015-07-19 Jay: What about JSON format?

JSP Document - JSP Page in XML Format
This section describes the syntax of a JSP Document, which is a JSP page written in XML format. Tomcat 7 server can process both JSP Page format and JSP Document format. 2017-10-10, 104👍, 1💬

Meter Based on Earth's Meridian
This section introduces an old definition of 'meter' which uses the Paris meridian line. A 'meter' is about one ten-millionth of the length of a quadrant of the Paris meridian. 2017-10-08, 523👍, 2💬

💬 2017-10-08 Herong: Peter, what's the difference between inaccurate and miscalculated?

💬 2017-10-07 Peter: This explanation is incorrect. You are inferring from speed of light definition and assuming a broader sense of “correct” and wo...

GetSunSetRiseTime - Usage Description
This section describes the free Web service GetSunSetRiseTime provided by WebserviceX.NET. GetSunSetRiseTime allows you to retrieve sunrise and sunset times for any given location and date. 2017-10-08, 498👍, 4💬

💬 2017-10-08 Herong: Eduardo, do you need Java code to connect to the server to use the service, or to setup a new sun rise and sun set service?

💬 2017-10-02 Eduardo: Please, I need the code of sunsetriseservice for java netbeans. Thanks...

💬 2016-10-12 Herong: Vassilis, Good question. Can you try the following: return_value = 17.9877033 hour = floor(return_value) minute = floor((return_...

💬 2016-10-10 Vassilis V: Hi, how can we convert the float return to time?

Perl Tutorials - Herong's Tutorial Examples
This Perl tutorial book is a collection of notes and sample codes written by the author while he was learning Perl language himself. Topics include ActivePerl, data types, subroutines, debug, references, objects, open, binary, file, directory, DBM, MySQL, regular expression, RPC::XML, XML::Simple, S... 2017-10-06, 5462👍, 5💬

💬 2017-10-23 guru: That's an issue with the Perl script, not with running the script itself, and it deserves another question (not here, on Stack O...

💬 2017-10-06 drhvr: mysql I added root as user and password.in singlequotes. It works great

💬 2014-03-17 Steven Klotz: Hi Herong, I found this web site while looking for PERL examples. Your knowledge and the amount of work you done (docu, tutorial...

💬 2010-11-22 Herong: Kim, Yes, you can prompt the user for a path name, open directory with opendir(), loop through each files, use the -s operator t...

💬 2010-11-19 Kim: Thank you Herong. I am a beginner and teaching myself how to use PERL. I found your tutorials very interesting. I am building a ...

PDF Printing Version: JDK Tutorials
Information on how to obtain the PDF version of this book for printing. 2017-09-29, 1626👍, 5💬

💬 2017-09-29 gloax29: merci

💬 2015-11-20 sameer: good going

💬 2015-09-02 Herong: Dharshan, you can follow tutorials presented at JSSE - Java Implementation of SSL and TLS.

💬 2015-09-01 Dharshan: I want to learn JSSE

Galilean Diagram of Moving Frames
This section presents a single diagram that represents a moving frame overlaid on a stationary frame. The time axis of the moving frame is rotated towards the moving direction. 2017-09-27, 323👍, 1💬

💬 2017-09-27 Salih Kırcalar: John David Best has his web site Vida İnstitute. He put my articles page in 'Timeflow Theory' 'http://vidainstitute.org/?page_id.. .

What Is Lorentz Factor?
This section introduces Lorentz Factor, which is the factor used in the time dilation and other formulas in special relativity. 2017-09-24, 1107👍, 2💬

💬 2017-09-24 Shuvojit khan: There is anothere equation ΔE=PΔT

💬 2017-04-30 Abhishek Dogra: Thanks

HttpsHello.java - HTTPS Server Test Program
This section provides a tutorial example on how to write a HTTPS server test program, HttpsHello.java. It writes back a simple Web page using the HTTPS protocol. 2017-09-20, 10681👍, 23💬

💬 2017-09-20 Herong: Sandeep, you need to create a server certificate in a .jks file first.

💬 2017-09-08 sandeep kumar shukla: I am getting following error while I run the servier program. java.io.FileNotFoundException: herong.jks (The system cannot find ...

💬 2016-09-21 Test: Hello. How are you?

💬 2016-05-21 Herong: Anthony, this example program is missing a logic for communication start and stop conditions on both server and client sides. Ad...

💬 2016-05-19 Anthony: P.S. If you want to claim copyright then you should give permission to use the fragments in applications, which is the point, I ...

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中国年历 - 2018 年年历 - 狗年 2017-09-13, 3489👍, 1💬

💬 2017-09-13 tom kelly: thank you

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. 2017-09-12, 17846👍, 25💬

💬 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.

💬 2017-06-25 Shubhankar: I want Sun.jdbc.odbc.jdbcodbcdriver

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showOptionDialog() - Displaying Option Dialog Boxes
This section provides a tutorial example on how to use the static method, showInputDialog(), to create and display input dialog boxes to take text string input from the user. 2017-09-12, 1451👍, 3💬

💬 2017-02-15 Eric: nice article..I have written about the same.check out http://www.download-all.net/2017/02/ joptionpane-showoptiondialog-code.ht ml

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