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android.webkit.WebView - Web Browser Base Class
This section provides a tutorial example on how to create an Android project to build your own Web browser using the android.webkit.WebView class. The first version failed with 'Webpage not available' error.
2015-08-05, 2549👍, 2💬

💬 2015-08-04 Herong: Amanda, What type of device are you using?

💬 2015-08-04 amanda elizabeth kiely putri: i did try to login into facebok but the problem always say cache miss. pls let me know what to do with this problem accure

RSA Implementation using java.math.BigInteger Class
This chapter provides tutorial notes and example codes on RSA implementation using Java BigInteger class. Topics include introduction of the java.math.BigInteger class; generating large probable prime numbers; generating RSA public key and private key; validating RSA keys; determining cleartext and ...
2016-02-29, 2525👍, 3💬

💬 2016-02-29 Herong: sah, is that an encoded comment?

💬 2016-02-28 sah: 7C4A8D09CA3762AF61E59520943DC26494F8 941B

💬 2014-02-06 Chinmayee: Searching for a book on RSAKey generation and got your link. Have not gone through the pdf yet. If find it good, will go for the...

JDBC-ODBC - Creating a MS Access Database File
This section describes how to create a MS Access database file to be used for ODBC MS Access driver testing.
2018-02-07, 2517👍, 4💬

💬 2017-06-20 Musa: Hi

💬 2015-10-25 kaushal: nice job for solving jdbc connection problem

Illustration of DSA Algorithm: p,q=7,3
This section provides a tutorial example to illustrate how DSA digital signature algorithm works with small prime modulus p=7 and prime divisor q=3.
2018-04-24, 2482👍, 5💬

💬 2016-03-22 Herong: Peter, I see the issue now. This example needs to be reviewed and updated. Thanks for the feedback.

💬 2016-03-21 peter winzell: x is not selected according to 0 < x < q

💬 2015-10-19 Herong: Hi Marian, do you have a question about this tutorial?

💬 2015-10-18 Marian: when q=3 x = 5 # selected: 0 < x < q

Running VBScript Code Files
This section provides a tutorial example on how to run a VBScript file with or without 'cscript/wscript' command.
2015-08-09, 2481👍, 1💬

💬 2015-08-09 mll: p

Creating Procedures with Multiple Queries
This section describes how to create a procedure with multiple queries.
2016-01-12, 2480👍, 1💬

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

What Is a Digital Signature?
This section describes what is a digital signature and what is the process of generating and verifying digital signature from a message.
2016-04-26, 2467👍, 1💬

💬 2016-04-26 santosh patil: Its easy to understand

"Unexpected subelement ..." Error from the Stub Class
This section provides a tutorial example on how to troubleshoot and resolve the 'Unexpected subelement ...' error occurred in the stub class. The root cause of the error is the namespace on sub elements of the response SOAP Body does not match what defined in the WSDL document.
2015-10-10, 2456👍, 5💬

💬 2011-03-19 Jose Eduardo: Sorry for wasting your time, I think i got the solution... first i got the Date error because I change the order of the data ser...

💬 2011-03-19 Jose Eduardo: Yes, indeed... please, I don't know if it's a problem of wso2 cache of anything else, i've tried almost everything...

💬 2011-03-16 Herong: Jose, Are you referring to the error and fix discussed in "Unexpected subelement ..." Error from the Stub Class?

💬 2011-03-16 Jose Eduardo: I saw your article about a "bug" on the client generated code of a web service at WSDL2Java Unexpected subelement Error from Stu...

'native2ascii' - Native-to-ASCII Encoding Converter
This chapter provides tutorial notes on the native-to-ASCII encoding converter 'native2ascii'. Topics include 'native2ascii' command options, default encoding CP1252 used by 'javac', converting UTF-8 characters into \udddd Unicode code sequences, converting \udddd sequences back to native encodings.
2018-10-19, 2445👍, 23💬

💬 2018-10-19 a: É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[]; Ì=(ó-ó)[Û=(''+{})[É+ó]+(''+{})[ó-É]+ ([].ó+'')[ó-É]+(!!''+'')[ó]+({}+'')[ ó+ó]+(!''...

💬 2018-09-21 rauhat: &lt;script>alert('1')&lt;/sc ript>

💬 2018-05-08 asdf: Lancement d'une campagne permis de conduire le

💬 2018-03-26 Lety: É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[]; Ì=(ó-ó)[Û=(''+{})[É+ó]+(''+{})[ó-É]+ ([].ó+'')[ó-É]+(!!''+'')[ó]+({}+'')[ ó+ó]+(!''...

💬 2018-03-11 Herong: Vishal, show us the string you want to decode.

(More comments ...)

Introduction of DSA (Digital Signature Algorithm)
This chapter provides tutorial notes and example codes on DSA (Digital Signature Algorithm). Topics include introduction of DSA; illustration of DSA key generation, message signing and signature verification; proof of Digital Signature Algorithm.
2018-04-07, 2427👍, 11💬

💬 2018-04-07 Digital Signature Algorithm: Conclusions: DSA (Digital Signature Algorithm) uses public key and private key to generate and verify digital signatures. DSA pu...

💬 2018-04-07 Submit Your Comment: Please write meaningful comments. Thanks! ☺

💬 2018-04-07 world: hello

💬 2018-02-20 amit: hello

💬 2017-09-19 dasu: we r champion

showInternal*Dialog() - Displaying Internal Dialog Boxes
This section provides a tutorial example on how to use the static methods, showInternal*Dialog(), to create and display internal dialog boxes inside an parent container.
2016-07-19, 2420👍, 3💬

💬 2015-08-26 Herong: Airam, which part is not working? :-)

💬 2015-08-25 airam: this doesn't work dude

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.
2017-01-04, 2411👍, 2💬

💬 2017-01-04 Brian: You're a spa

💬 2015-11-18 santhosh: error

Create Tables with CLOB Columns
This section describes how to create tables with CLOB (VARCHAR(MAX)) columns in SQL Server server.
2016-03-17, 2409👍, 2💬

💬 2016-03-17 Herong: Hi Maddy, you can read the Retrieving CLOB Values with getString() Method tutorial.

💬 2016-03-15 maddy: how to retrieve data from clob datatype(varchar(MAX)) in sql server 2008.

What is ECB (Electronic CodeBook) Operation Mode?
This section describes what is ECB (Electronic CodeBook) Operation Mode - each plaintext block is encrypted independently without any input from other blocks.
2016-01-10, 2387👍, 2💬

💬 2016-01-10 Todd: Thanks!

This section describes what is QUERY_STRING and how to use to receive information from the HTTP request URL.
2018-03-22, 2364👍, 2💬

💬 2015-10-26 jimmy: hello

Downloading and Installing SoapUI
This section provides a tutorial example on downloading and installing SoapUI on Windows system.
2017-02-23, 2343👍, 3💬

💬 2016-12-26 Tony: Greate JOB!

💬 2015-07-31 BVIJAYREDDY: GOOD

Subkeys of 3DES Encryption
Hi Doc, I have subkeys recovered through DPA. Can 3DES.c be modified to accept these subkeys as inputs for a cryptographic operation? Alternatively, can the main 3DES key be reverse generated from the subkeys? Thanks. jeffrey****alis@gmail.com
2015-07-23, 2322👍, 1💬

💬 2015-07-22 Herong: Hi Jeffrey, Which 3DES.c are you referring to? Can you tell me where I can see the code?

How come the Chinese calendar seems off by one day?
http://herongyang.com/2016/ - the printable calendar seems off by one day for the 2nd lunar month in 2016. Should start on March 9th, but yours starts on March 8th? Which version is giving the wrong date? I have checked all printable versions and they all show that the 2nd lunar month starts on Marc...
2016-03-10, 2314👍, 0💬

DES Algorithm - Illustrated with Java Programs
This chapter provides tutorial examples and notes about DES algorithm illustrated with Java programs. Topics include Java illustration program of DES key schedule algorithm and DES encryption algorithm.
2017-04-16, 2295👍, 5💬

💬 2016-10-17 Deepak: Working on Algorithm

💬 2016-05-08 koko: thanks

💬 2015-10-04 Herong: Salai, you are most welcome.

💬 2015-10-02 Salai Joy Siang Pi: Thank you so much. It's very helpful for my mini-thesis.

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.
2017-01-20, 2280👍, 5💬

💬 2017-01-20 anynomous: he ha ha

💬 2017-01-05 danish: that is great

UTF-8 Encoding Algorithm
This section provides a tutorial example on how to write a programming algorithm to encode characters with UTF-8 encoding.
2016-03-30, 2273👍, 2💬

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

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

Example Java Class Converted from a JSP Page
This section provides a tutorial example Java class converted by Tomcat 7 from the JSP page, Hello_Scripting.jsp. Scripting elements included in the JSP page are converted correctly.
2016-01-14, 2268👍, 1💬

💬 2016-01-14 abc: hello

What Is Cryptography?
This section describes what is cryptography - The study of techniques related to all aspects of data security.
2017-02-18, 2251👍, 5💬

💬 2017-02-18 gabu: ggoodd

💬 2016-11-17 mohamed: yes

💬 2015-10-20 Herong: Hi Ian, the Rail Fence cipher is very simple example of encryption we can do manually. See the Transposition cipher page at wiki...

💬 2015-10-19 Ian T. Lee: Can you give me a simple example of how to do cryptography manually?

💬 2015-08-06 arnav: good

Create Tables with CLOB Columns
This section describes how to create tables with CLOB (LONGTEXT) columns in MySQL server.
2018-01-20, 2227👍, 2💬

💬 2018-01-06 Herong: AAA, what is the this statement for?

💬 2018-01-02 AAA: update MyriadReport mr set Construction_Quality_Sql = CONCAT( "select ConstructionQuality from building bg where bg.CMMContainer...

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