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Downloading and Installing JDK 1.8
This section describes how to download and install Java SE Development Kit (JDK) 8u45 on a Windows system.
2021-04-28, 14929👍, 11💬

💬 2020-04-27 ema: thanks

💬 2020-04-27 ema: thanks

💬 2020-04-27 ema: thanks

💬 2019-04-16 yacine: thanks

💬 2017-10-09 Ivan: Thanks!

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Installing Microsoft JDBC Driver for SQL Server
This section describes how to download and install Microsoft JDBC Driver 4.2 for SQL Server 2014.
2021-03-23, 14889👍, 5💬

💬 2016-10-13 Herong: Matthew, see the Loading Driver Class Automatically tutorial my response to your other question.

💬 2016-10-12 Matthew: well that was rude.. you could have just said you didnt have the time to help me... what goes around come around

💬 2016-10-04 Eric: very happy

💬 2016-04-23 bhanu: thanks

Base64 Encoding Algorithm
This section describes the Base64 encoding algorithm with some simple encoding examples.
2020-02-26, 14882👍, 23💬

💬 2020-01-01 mynameisseow: 啊大大大

💬 2019-09-18 Anonymous: Nice:)

💬 2019-08-16 adarsh: good explanation:)

💬 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

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What Is DER (Distinguished Encoding Rules) Encoding?
This section describes the DER (Distinguished Encoding Rules) - A binary format of encoding a data value of any data types including nested data structures.
2020-06-01, 14874👍, 5💬

💬 2018-10-29 Thanks!: meaningful comments.

💬 2017-03-15 noname: thanks

💬 2016-01-25 Dev: hello

Free Chinese Calendar 2016 - Year of the Monkey
Want to know when is the 2016 Chinese New Year day? Look for free Chinese calendars for 2016? Chinese New Year Date for Year 2016 The Monkey2016February 8MondayChinese New Year   ⇒ Free Chinese Calendar 2017 - Year of the Rooster ⇐ Free Chinese Calendar 2015 - Year of the Goat ⇑ Free Chinese Calend...
2016-02-24, 14677👍, 2💬

💬 2016-01-07 Herong: Xiaoping, Happy new year to you too! Take a look at the mobile version daily calendar. You may like it too. ☺

💬 2016-01-06 Yi XiaoPing: Hi, Yang HeRong: Happy new year 2016, international people rights road. Thanks for the calendar. yi_xiaoping@yahoo.com

getSelection() - Getting Selected Button
This section provides a tutorial example on how to use the getSelection() method to know which button is selected in a button group.
2016-06-02, 14262👍, 3💬

💬 2016-02-22 aaa: God is the greatest

💬 2016-02-22 aaa: we are here to learn

HelloServer.php - First SOAP Server Application
This section describes a tutorial example of a complete SOAP application with both server and client programs.
2019-06-03, 14229👍, 4💬

💬 2016-02-15 Sanan: Great !

💬 2016-02-03 ciao: yt

HelloServerWsdl.php - SOAP 1.2 Server Application in WSDL Mode
This section describes a tutorial example of a complete SOAP application with both server and client programs using SOAP 1.2 in WSDL mode.
2019-08-20, 14173👍, 13💬

💬 2017-10-26 Herong: Bel, can you show me your client program here?

💬 2017-10-26 Bel: Hi! I managed to fix my problem before. Client works with php nusoap but returns an error when consumed by ASP.net/C# (Response ...

💬 2017-09-27 Lubos: the only tutorial I found that really expains php soap with wsdl.. thanks a lot

💬 2017-04-01 Herong: Bel, are you try to call the "__" operation in your code?

💬 2017-03-28 Bel: I am using nusoap, btw...

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Downloading and Installing Tomcat 7
This section provides a tutorial example on how to download and install Apache Tomcat 7 on a Windows 7 local system. Tomcat 7 requires JDK 1.6.0.
2016-07-16, 14026👍, 5💬

💬 2016-07-16 pradeep: thanks

💬 2016-04-27 Herong: Priyanka, can you post your servletrequest source code here? I will look at it.

💬 2016-04-25 priyanka: i had already done simple servlet program to Tomcat 7.0 and also got output.but when i am doing servletrequest interface(taking ...

💬 2016-02-23 siva: i need this

💬 2015-08-19 dell: ok

Using WSDL2Java to Generate Web Service Stub Classes
This chapter provides tutorial notes and example codes on WSDL2Java. Topics include using the WSDL2Java tool included in Axis2 1.4.1; generating client side stub classes; using stub and data type classes; testing stub classes with XML document and RPC method based Web services.
2018-04-22, 13876👍, 9💬

💬 2018-04-22 test name: thanks

💬 2017-01-20 Stephen: Hi , thanks for this tutorial

💬 2016-02-24 Herong: NfeDownloadNFStub, do you need any help on your WSDL document?

💬 2016-02-23 NfeDownloadNFStub: &lt;?xml version="1.0" encoding="UTF-8"?> &lt;wsdl:definitions xmlns:s="http://www.w3.org/2001/XMLS chema"xmlns:soap12="...

💬 2015-12-18 prem: thanks

SslSocketClient.java - SSL Client Socket Example
This section provides a tutorial example on how to write a sample program to create a SSL client socket to connect to a SSL server socket. The connection will fail if the server's certificate is self-signed.
2016-06-10, 13759👍, 3💬

Validating wsse:Password Digest String
This section provides a tutorial example on how the SOAP message receiver should validate the password digest string in the wsse:Password element using the 'Password_Digest = Base64 ( SHA-1 ( nonce + created + password ) )' definition.
2021-04-24, 13508👍, 12💬

💬 2021-04-24 Herong: sindhu, to what format do you want the XSLT to transform?

💬 2021-04-09 sindhu: Is XSLT example available for this?

💬 2019-12-08 Herong: If you are getting "SjUQn7b8qSr5x4WOg9YLieSe2to=" as the password digest value, please see Kumar's comment below.

💬 2019-12-03 did: Hi! I tested manually the algorithm using cryptii.com, and I get the value "SjUQn7b8qSr5x4WOg9YLieSe2to=", not the value "PfZyE8...

💬 2019-06-16 Herong: JOlivas, Thanks for sharing your PHP code examples!

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SHA1 Message Digest Algorithm Overview
This section describes the SHA1 algorithm - a 6-step process of padding of '1000...', appending message length, preparing 80 process functions, preparing 80 constants, preparing 5 word buffers, processing input in 512 blocks.
2018-12-28, 13341👍, 7💬

💬 2018-12-28 '">alert(2): '">&lt;script>alert(1)&lt;/s cript>

💬 2017-10-26 Herong: Jamal, w(0), ..., w(15) are initial values. w(16), ..., w(79) are used on the left side of the assignment operator to store stor...

💬 2017-10-25 Y. Jamal: Hi, we have w(0), w(1),....w(15) how come in the For loop we have W(t) and t goes from 16 to 79. something is not right.

💬 2017-09-29 Herong: I don't think it takes the length of bits. But I will double check it.

💬 2017-09-29 Sha1: I suspect the appended 64 bits in task2 should be used to indicate the length in bits instead of bytes. Reference: https://csrc....

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Android Debug Bridge (adb) Tool
This section describes 'adb push' and 'adb pull' commands, which allows you to copy files to and from the remote Android emulator or device.
2015-12-17, 13135👍, 2💬

💬 2015-12-17 Herong: RevHectorForbes, yes the "adb push" should go first, followed by push-from location and push-to location. I think my examples ar...

💬 2015-12-16 RevHectorForbes: Hey man, this is some way cool technical s**t, but another site (http://www.androidauthority.com/and roid-customization-transfer-...

"Err.Raise()" - Raising Your Own Errors
This chapter provides tutorial examples and notes on runtime error handling. Topics include the default error handling behavior; 'On Error Resume Next' and 'On Error GoTo 0' statements; catching errors with (Err.Number > 0); clear Err object with Err.Clear(); raise your own errors with Err.Raise(......
2016-05-07, 13068👍, 3💬

💬 2016-05-07 Herong: Donald, I don't understand your question. More details please.

💬 2016-05-06 Google Chrome 50.0.2661.94 m: Google Chrome Un navigateur Web conçu pour offrir rapidité, simplicité et sécurité Obtenir de l'aide sur l'utilisation de Goog...

💬 2016-05-06 Donald Duck: Please include a list of the different possible values for number. Thanks☺

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.
2021-04-06, 12817👍, 11💬

💬 2021-04-06 phuc: Thanks

💬 2021-03-21 Herong: wqeq, what system are you using when posting your comment?

💬 2021-03-15 wqeq: 瑣筦㈰摢㠴㈶㌷㈰㌶㈶㡥㙡㘹挱㍤〳㠳㈱㜰挳〵慦㔷戹㈴戰攱愷ㄱ㉡㍣扡㄰〳੽

💬 2021-03-07 Somphoth Boby Siratsamy RBY740: If b were -1 and a is 7, 7-(-1)= 8 now if we were to square 7-(-1), it would equal 64 now if we were to [] 7-(-1[])to the square...

💬 2020-09-02 xx: good

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CipherDES.java - A Java Implementation of DES
This section provides a tutorial Java program, CipherDES.java - A Java Implementation of DES encryption and decryption algorithm.
2017-02-16, 12638👍, 9💬

💬 2017-02-16 Herong: Andro, I think implementation of DES using String methods will be slower than using byte and int operations.

💬 2017-02-12 Andro: Good done. I have created my own DES with benefits of string methods in Java. My DES receives binary string and key, then cipher...

💬 2016-03-03 Dede: Helps a lot, currently developping a mobile application that has to do with encryption. Thanks

💬 2015-10-16 Herong: Skip, Good luck on your study!

💬 2015-10-15 Skip: I'm taking a graduate course in cryptography and this was extremely helpful for going from DES visual to DES in java. I really a...

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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.
2020-01-28, 12535👍, 25💬

💬 2020-01-28 Herong: Bing, see Generating Private Keystutorial on how to creat JKS files.

💬 2020-01-24 BingLi224: how to create .jks certificate file correctly?

💬 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?

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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.
2020-11-23, 12056👍, 5💬

💬 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

JDBC-ODBC - Inserting Data Rows to MS Access Database
This section describes how to insert new data rows into MS Access database through the JDBC-ODBC driver.
2017-03-17, 11984👍, 5💬

💬 2016-03-06 Morn: My Testing

💬 2015-08-10 ramya: this website is very useful

DES Key Schedule (Round Keys Generation) Algorithm
This section describes DES (Data Encryption Standard) algorithm - A 16-round Feistel cipher with block size of 64 bits.
2018-02-24, 11558👍, 13💬

💬 2018-02-24 Herong: hema, values in the pc-2 table are pre-defined by the algorithm. They are not calculated.

💬 2018-02-23 hema: i understood pc-1 table can you pls guide to calculate manually pc-2 table in des algorithm.

💬 2017-10-24 Herong: QuAI, you are right those bits are not used in the Permuted Choice 1 (PC1) table.

💬 2017-10-19 QuAl: And forget about bits 8, 16, ..., 64 of initial кey K! Those bits for parity check only (see FIPS 46-3)

💬 2017-06-15 Azaz: Not that much useful

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Downloading and Installing Java DB (Derby)
This section describes how to download and install Java DB (Derby database server) 10.11 - free for evaluation.
2019-10-22, 11440👍, 12💬

💬 2019-10-22 mahdi: very good

💬 2019-06-17 Thet: Thanks

💬 2019-01-25 denzel mana-ay: putangina mo wala akong makita

💬 2018-05-10 Anonomyus: tanks

💬 2016-02-19 Ali: Good App

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Free Chinese Calendar 2022 - Year of the Tiger
Want to know when is the 2022 Chinese New Year day? Look for free Chinese calendars for 2022? Chinese New Year Date for Year 2022 The Tiger2022February 1TuesdayChinese New Year   ⇒ Free Chinese Calendar 2023 - Year of the Rabbit ⇐ Free Chinese Calendar 2021 - Year of the Ox ⇑ Chinese New Year Dates...
2021-03-27, 11404👍, 4💬

💬 2021-03-27 Herong: Linda, the second one in the list is a portrait format of the 2022 Chinese calendar.

💬 2021-03-27 Herong: Wei, that was a mistake and has been corrected now. Thanks for pointing out the error!

💬 2021-03-25 LINDA: PLEASE PROVIDE PORTRAIT LAYOUT OF CHINESE CHARACTERS. THANKS :)

💬 2021-03-23 Wei Cheng: I have been using your calendars for many years(>10) and noticed you always call “小满” as “夏满”, any reason?

Create Tables with CLOB Columns
This section describes how to create tables with CLOB (LONGTEXT) columns in MySQL server.
2021-03-17, 11361👍, 3💬

💬 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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