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HttpsClient.java - HTTPS Client Test Program
This section provides a tutorial example on how to write a HTTPS client test program, HttpsClient.java. It sends a simple HTTP request page using the HTTPS protocol.
2015-11-20, 3789👍, 6💬

💬 2015-11-20 Herong: Philip, can you run HttpsHello server with SSL debug turned on? My test programs do have issues with newer build of JDK 1.7 and ...

💬 2015-11-19 Philip: java version "1.7.0_80" Java(TM) SE Runtime Environment (build 1.7.0_80-b15) Java HotSpot(TM) 64-Bit Server VM (build 24.80-b11,...

💬 2015-11-19 Herong: Philip, which JDK version are you using?

💬 2015-11-18 Philip: I changed the code, but then reset back to the example. I recreated the jks a few times. The JVM and OS had not changed. It stop...

💬 2015-11-18 Herong: Philip, Was anything changed? Certificates, code, JVM or operating system...

(More comments ...)

GetCurrencies - Get Currencies from All Countries and Territories
This chapter provides a quick introduction of the free Web service, GetCurrencies, returning a list of all countries with their currencies in the world. Topics include usage description of GetCurrencies; request message sample; response message sample.
2015-11-19, 496👍, 1💬

💬 2015-11-19 cliff: more testing

This section provides a quick introduction of FORTRAN language, a general-purpose and procedural programming language.
2015-11-19, 314👍, 3💬

💬 2015-11-19 me: Nice retention of previous examples

💬 2015-11-19 cliff: Hello

💬 2015-11-19 Clifford: This is cool!

Chinese Web Pages with UTF-8 Encoding
This section describes how to create a Chinese HTML document in UTF-8 encoding and publish it on the Apache server.
2015-11-17, 6371👍, 2💬

💬 2015-11-17 Herong: James, display sizes of Chinese characters in Chrome are controlled by CSS font-size properties associated with each HTML elemen...

💬 2015-11-16 james: Hi, At Windows 10, I use notepad++, the Chinese characters typed shows different sizes in title, a, p... However the result from...

"aapt" - Android Asset Packaging Tool
This section describes 'aapt', the Android Asset Packaging Tool, which can be used to list, add and remove files in an APK file, package resources, crunching PNG files, etc.
2015-11-16, 1738👍, 1💬

Synchronization Technique and Synchronized Code Blocks
This chapter provides tutorial notes and tutorial examples on synchronization technique and synchronized code blocks. Topics include what is the synchronization technique; synchronized class methods, instance methods, statement blocks; synchronized banking application sample.
2015-11-13, 214👍, 1💬

What is OFB (Output FeedBack) Operation Mode?
This section describes what is OFB (Output FeedBack) Operation Mode - each plaintext block is XORed with the current output block to be the ciphertext block. The current output block is the encrypted version of the previous output block.
2015-11-13, 989👍, 2💬

💬 2015-11-13 Ashish: Hello world!

GenerateBarCode - Usage Description
This section describes the free Web service GenerateBarCode provided by WebserviceX.NET. GenerateBarCode allows you to generate bar code images in formats of Code 128, Code 39, Code 93, EAN13, Supp2, UPC A, and more.
2015-11-11, 440👍, 1💬

💬 2015-11-11 javier: thanksss

XML Messages over Socket Connections
This section describes the XML message communication model - where client and server send and receive XML messages over socket communication connections.
2015-11-11, 1103👍, 4💬

💬 2015-11-11 Herong: Thai, you are welcome!

💬 2015-11-10 Thai Khang: Thanks

💬 2015-11-10 Khang: thanks

💬 2015-10-06 Thai Khang: Thank you so much

setMnemonic() - Setting Keyboard Mnemonics on Menu Items
This section provides a tutorial example on how to use setMnemonic() method to associate mnemonics to menu items. Mnemonics allows user to interact with menu items using keys on keyboard.
2015-11-10, 371👍, 1💬

Installing and Running Java DB - Derby
This chapter provides tutorial notes on downloading, installing and setting up Java DB (Derby) server. Topics include downloading and installing Java DB 10.5.3; verifying Java DB execution environment; running Java DB in Network Server mode; using 'ij' to create database and tables.
2015-11-08, 1361👍, 3💬

💬 2015-08-09 a: g

Using "Process" Class to Show Memory Usages
This section provides a tutorial example on how to retrieve memory usage statistics of your application using methods and properties of the System.Diagnostics.Process class.
2015-11-06, 1099👍, 1💬

Create Tables with CLOB Columns
This section describes how to create tables with CLOB (LONGTEXT) columns in MySQL server.
2015-11-05, 619👍, 2💬

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, 4229👍, 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 ...)

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, 3965👍, 1💬

💬 2015-11-03 cpp: hello

Generating New RSA Key Pairs
This section provides a tutorial example on how to generate a new pair of RSA priviate key and public key using the OpenSSL command line tool.
2015-11-03, 628👍, 1💬

💬 2015-11-03 Juli: Thanks

Option Dialog Boxes
This chapter provides tutorial notes and example codes on option dialog box. Topics include creating and displaying message, confirmation, input and option dialog boxes; receiving input values from option dialog boxes; creating and display internal dialog boxes; creating option dialog box directly.
2015-11-02, 239👍, 1💬

Main Features of XML
This section provides a quick description of XML features and advantages. The power of XML comes from its simplicity and extensibility.
2015-11-01, 406👍, 1💬

UTF-32, UTF-32BE and UTF-32LE Encodings
This chapter provides notes and tutorial examples on UTF-32, UTF-32BE and UTF-32LE encodings. Topics including encoding and decoding logics of UTF-32, UTF-32BE and UTF-32LE encodings; explanation of the use of BOM (Byte Order Mark).
2015-11-01, 250👍, 1💬

Sending and Receiving Cookies - Example
This section provides a tutorial example on how to set and send a cookie with the setcookie() function, and how to receive a cookie with the $_COOKIE array.
2015-10-31, 1069👍, 1💬

💬 2015-10-31 asbak hussain: very useful thnks

Input Text Data from Web Forms
This chapter provides tutorial notes on input text data from Web forms. Topics include creating Web form; receiving input text data with PHP the $_REQUEST array; input text data in ASCII, Latin1 and UTF-8 encoding; entering Latin1 characters with Alt keycodes.
2015-10-29, 232👍, 2💬

SslContextTest.java - javax.net.ssl.SSLContext Class Test
This section provides a tutorial example on how to write a simple program to test the java.net.ssl.SSLContext class.
2015-10-28, 299👍, 1💬

JDBC-ODBC Bridge Driver - Flat Text Files
This chapter provides tutorial notes on using JDBC-ODBC Bridge to access data stored in flat text files. Topics include creating tab delimited data files; creating and configuring DSN for flat data files; running queries on flat files.
2015-10-27, 813👍, 1💬

💬 2015-10-27 Budiyanto: Thank's

This section describes what is QUERY_STRING and how to use to receive information from the HTTP request URL.
2015-10-26, 1742👍, 1💬

💬 2015-10-26 jimmy: hello

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