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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.
2017-03-30, 5634👍, 3💬

💬 2017-03-15 noname: thanks

💬 2016-01-25 Dev: hello

Create Tables with CLOB Columns
This section describes how to create tables with CLOB columns in Oracle server.
2017-08-22, 5614👍, 3💬

💬 2016-12-14 morgane: dhzeujf zihf zeiuhfzehf ezhf zoiehfqiejfcksbfhjre fnr jcrh vrf

DES Algorithm Java Implementation
This chapter provides tutorial examples and notes about DES algorithm implementation in Java language. Topics include an example Java implementation of DES encryption and decryption algorithm; test cases of single block cleartext and ciphertext.
2017-10-15, 5558👍, 15💬

💬 2017-10-15 Herong: CipherDES.java also works as a decryption program. Try it by running "java DesCipher decrypt keyFile input output".

💬 2017-10-09 aa: thanks, but where i can find DES decryption

💬 2017-10-09 Denys: thx

💬 2017-04-23 aa: thanks

💬 2017-02-15 gg: lolol

(More comments ...)

Generating Client Side Stub Java Code
This section provides a tutorial example on how to run WSDL2Java to generate client side stub Java code from an existing WSDL document. The generated stub class will have a package name borrowed from the target namespace of the Web service.
2015-11-25, 5427👍, 1💬

💬 2015-11-25 thakur: nice

BankingThread.java - Synchronization Sample Program
This section provides a tutorial example on how to solve the banking synchronization issue with Java synchronized methods.
2017-01-21, 5395👍, 5💬

💬 2017-01-21 Herong: Abhishek, I think this is the simplest example to demonstrate multi-threading and synchronization.

💬 2017-01-18 Abhishek: This is too complex for a beginner. Please write a simpler one.

💬 2016-09-17 Herong: dot.g, really? please give details.

💬 2016-09-15 dot.g: worst kind of programming

💬 2015-07-24 tintin: hi

PDF Printing Version: Cryptography Tutorials
Information on how to obtain the PDF version of this book for printing.
2017-08-18, 5321👍, 30💬

💬 2017-08-18 yamai: how can I design a java program

💬 2017-08-15 James Deam: Thanks! Amazing..

💬 2017-06-26 sunil: Good material

💬 2017-02-17 xiaoxiaoyuanzi: the one i'm looking for, Thanks!

💬 2017-02-14 kiki: thanks, great book

(More comments ...)

PKI Tutorials - Herong's Tutorial Examples
This PKI (Public Key Infrastructure) tutorial book is a collection of notes and sample codes written by the author while he was learning PKI technologies himself. Topics include CA, Certificate, Crypt::SSLeay, C#, Digital Signature, Firefox, HTTPS, IE, Java, JSSE, KeyStore, keytool, MMC, .NET, OpenS...
2016-02-07, 4946👍, 1💬

💬 2016-02-07 john: thanks!

Java Compilation and Execution Processes
This section provides a quick introduction of Java compilation and execution process.
2016-12-04, 4879👍, 9💬

💬 2016-12-04 ak: Thx

💬 2016-09-22 rodriguesss: thanks

💬 2016-03-05 Shohel: THanks lot

💬 2016-01-05 Rishika: THANK U

💬 2015-11-28 Herong: Naveen, you are welcome! If you have other questions/problems, post them here. We will be happy to help you out. ☺

(More comments ...)

Installing LG USB Device Driver on Windows
This section provides a tutorial example on how to install the LG USB device driver for LG-P925g Android phone on Windows system. This is needed to test your Android application developed on Windows on LG phones via a USB connection.
2016-03-24, 4871👍, 7💬

💬 2016-03-24 vamshi: hi hi hi

💬 2015-08-27 Herong: Renee, did you double-click on the downloaded file to actually install the driver to your computer?

💬 2015-08-26 Renee' Flory: Even after I download the program, the Driver Software Installation box does not come up. Even as the phone receives a charge fr...

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.
2015-11-03, 4770👍, 1💬

💬 2015-11-03 cpp: hello

Inserting BLOB Values with setBinaryStream() Method
This section describes how to insert BLOB values with the PreparedStatement.setBinaryStr eam()method.
2016-04-08, 4711👍, 2💬

💬 2016-04-08 Herong: Saqib, you are welcome!

💬 2016-04-06 Saqib Ayub: Just want to thank you so much. You made my day.

Saving Images in BMP (Windows Bitmap) Format
This section provides a tutorial example on how to save an image in BMP (Windows Bitmap) format with 24-bit colors.
2015-08-22, 4703👍, 2💬

💬 2015-08-22 Herong: Gordon, the "Windows BMP image" format is actually the Windows BGR pixel format. You test it by create an image with RGB="3377ff...

💬 2015-08-19 gordon: But a real Windows bitmap file is BGR pixel format. Where is that option in Gimp?

JDBC Tutorials - Herong's Tutorial Examples
This JDBC tutorial book is a collection of notes and sample codes written by the author while he was learning JDBC technology himself. It can be used as a tutorial guide for beginners. Topics include Java, Database, JDBC, Driver, ODBC, Connection, DataSource, SQL, ResultSet, Metadata, Derby, MySQL, ...
2017-06-26, 4674👍, 10💬

💬 2017-06-26 NIRMAL PUDASAINI: how cani get it?

💬 2015-12-15 hassan: nice, can i get it please?

💬 2015-09-20 Alan: Nice

💬 2011-01-21 Herong: Agree. The driver class must be loaded as shown in this tutorial: Loading Driver Class with Class.forName().

💬 2011-01-18 John: For the JDBC tutorials, you must add: Class.forName with newInstance before making connection.

(More comments ...)

Downloading and Installing JDK 1.7.0 on Windows
This section provides a tutorial example on how to download and install JDK 1.7.0 (Java SE 7) on a Windows XP system. A simple Java program was entered, compiled, and executed with the new JDK installation.
2017-01-02, 4606👍, 3💬

💬 2017-01-02 sudhanshu: no comments

💬 2016-12-17 tangxy: thk, i just want to learn java

💬 2016-11-22 ankit: THANKS

META-INF Files - Digests, Signature and Certificate
This section describes META-INF files in an .apk package file: MANIFEST.MF - manifest file, CERT.SF - signature file and CERT.RSA - the real signature file with certificate.
2015-09-04, 4601👍, 2💬

💬 2015-09-04 Herong: KariK, thanks for sharing your comments.

💬 2015-08-28 KariK: Step 5. CERT.RSA is not the only file type. There can also be CERT.DSA and CERT.EC files.

java.util.Locale - Localization and Internationalization
This section provides a tutorial example on how to use java.util.Locale class to verify the default locale and list all supported locales. A locale is an identification of a combination of human language and country.
2016-12-19, 4598👍, 3💬

💬 2016-12-19 jfseb: Note that java locales do not correspond in all versions to ISO 639. e.g. hebrew is now he, not iw. https://en.wikipedia.org/wik...

💬 2016-05-06 Scrijna: P.S. It's also useful for Java, iOS and Windows localization, as it supports most popular localization formats.

💬 2016-05-06 Scrijna: For Android app localization, you could try using the localization tool https://poeditor.com It's useful for collaborative trans...

"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, 4536👍, 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?

"soap:address" - Location of Service
This section describes 'soap:address', a SOAP extension element that specifies an address where Web service is located.
2016-10-03, 4516👍, 5💬

💬 2016-10-03 666: 6666

💬 2016-05-18 Nasir Peraiz: Nice work by your team

DES (Data Encryption Standard) Cipher Algorithm
This section describes DES (Data Encryption Standard) algorithm - A 16-round Feistel cipher with block size of 64 bits.
2015-11-05, 4497👍, 8💬

💬 2015-11-05 Herong: The Anh, good question. If your key is less than 64 bits, you can pad it with 0 or 1. Or use a hash algorithm to produce 64 bits...

💬 2015-11-04 The Anh: what if my key don't have enough bit?

💬 2015-11-04 Herong: Zaeem, take a look at the source code at Simple Cryptographer - Simple DES/AES Implementation in C#

💬 2015-11-03 zaeem: how to implement on windows form in c#

💬 2015-10-03 Herong: Mihir, what type of algorithm are you looking for?

(More comments ...)

Java Tools Tutorials - Herong's Tutorial Notes
This free book is an excellent tutorial book for beginners. It is a collection of notes and sample codes written by the author while he was learning Java tools himself. Topics include java, javac, jar, jdb, jar, javap, keytool, jconsole, jps, jstatd, jstat, jinfo, jmap, jhat, jstack.
2016-01-12, 4491👍, 1💬

💬 2016-01-12 ASHIS BEHERA: IT IS VERY GOOD

Downloading and Installing Java DB (Derby)
This section describes how to download and install Java DB (Derby database server) 10.11 - free for evaluation.
2016-02-19, 4470👍, 9💬

💬 2016-02-19 Ali: Good App

💬 2016-02-02 kotyba: very nice

💬 2016-02-02 kotyba: thanks

💬 2015-10-30 govind: super

💬 2015-08-29 memo: thanks

(More comments ...)

Listing of Trusted Root CA in Chrome 40
This section provides a tutorial example on how to see the list of trusted root CA (PKI Authorities) pre-installed in Chrome 40.
2016-09-16, 4434👍, 1💬

💬 2016-09-16 Pooja Shukla: good

Installing NMake 1.5
This section provides a tutorial example on how to install the 'make' utility on Windows, NMake 1.5, to help installing the RPC::XML Perl module.
2017-12-06, 4321👍, 17💬

💬 2017-12-06 sdfgsdf: fdgsfg

💬 2017-11-16 Ye Hongshaui: Very good

💬 2017-11-02 lxddd: thank you very much!

💬 2017-08-18 zhaogt: verry good!

💬 2017-05-20 qws: Very good

(More comments ...)

Using openConnection() Method in java.net.URL Class
This section provides a tutorial example on how to use the openConnection() method in the java.net.URL class to perform a GET method on an HTTPS server. Java Secure Socket Extension (JSSE) works quietly behind the java.net.URL class to provide HTTPS support.
2015-08-05, 4318👍, 2💬

💬 2015-08-05 ashkart: doesnt work indeed. Connection type got, connection object got too. But then there is an exception "java.net.ConnectException: C...

💬 2015-08-05 ashkart: sorry, works fine, i forgot i'm behind the proxy...

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