Herong's Tutorial Examples

Free Chinese Calendar 2024 - Year of the Dragon
Want to know when is the 2024 Chinese New Year day? Look for free Chinese calendars for 2024? Chinese New Year Date for Year 2024 The Dragon 2024 February 10 Saturday Chinese New Year ⇒ Free Chinese Calendar 2025 - Year of the Snake ⇐ Free Chinese Calendar 2023 - Year of the Rabbit ⇑ Chinese New ... 2023-11-28, 129460🔥, 1💬

💬 2023-02-03 Agnes Kim: Hey my mom and dad only celebrate their birthday following the lunar calendar, so all 3 of the kids end up missing their birthda...

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Steps of Using DES Algorithm in JDK JCE
This section describes how to use DES algorithm provided in the JDK JCE package. Steps include building a secret key object from key material; creating and initializing a cipher object. 2016-01-24, 967🔥, 1💬

💬 2016-01-24 Joe: Very nice

Where Is Session Data Stored
This section provides a tutorial example on how to find out where the PHP engine stores session data. The session.save_path setting specifies the directory name for session data. 2016-01-23, 3351🔥, 3💬

💬 2016-01-23 Herong: Venki, PHP engine only provides mechanism to cache session data. You need an application server to manage userid and user profil...

💬 2016-01-21 venki: how to get current session userid

💬 2015-11-18 ' OR '1'='1' ({: ' OR '1'='1' ({

Sun Implementation of Base64 in Java
This section provides the source code for the Java implementation of Base64 by Sun. 2016-01-23, 3216🔥, 2💬

💬 2016-01-23 Herong: Ashish, Finally Base64 encoding is included in JDK now. Thanks for sharing the tutorials;

💬 2016-01-22 Ashish: Nice Article you can read more about base 64 encoding using Java 8 at Modern Pathshala

Horoscope Moon and Other Planet Signs
This section provides introduction of planet zodiac signs: the Moon sign, the Mercury sign, the Venue sign, the Mars sign, and more. 2016-01-23, 527🔥, 1💬

💬 2016-01-23 Troy: Hi

Opening UTF-16 Text Files
This section provides a tutorial example on how to open a UTF-16 (Little-Endian with BOM) text file with Excel correctly by selecting the 'Windows (ANSI)' encoding option on the Text Import Wizard dialog box. 2016-01-19, 837🔥, 2💬

Connect tablet to Computer using Bluetooth
This section provides a tutorial example on how to connect an Android tablet to a Windows computer using Bluetooth radio. Once connected, you can transfer files between the tablet and computer. 2016-01-16, 1472🔥, 2💬

💬 2016-01-16 Herong: Trudy, I am planning to upgrade my Windows 8 to 10. Once upgraded, I will test the Bluetooth connection again and let you know t...

💬 2016-01-14 Trudy Dishmon: That would be great if it worked. My new 2 in 1 windows 10 is asking for a code number that my Android 10.1 has never needed a c...

Content-Disposition: - Sending Files for Downloading
This section provides a tutorial example on how to insert the 'Content-Disposition:' header line in a HTTP response to tell the browser to prompt the user the download and save the response entity body as a file. 2016-01-16, 875🔥, 2💬

💬 2016-01-16 Herong: James, that's an interesting question. I will try to search for an answer.

💬 2016-01-14 James: Hello, I generate PDF files on the fly. I have the option to use Content-Disposition: attachment; in the http header in order to...

SOAP PHP Implementations
This chapter provides notes and tutorials on SOAP PHP implementations: PEAR SOAP, NuSOAP, and PHP Group SOAP. 2016-01-13, 1631🔥, 1💬

💬 2016-01-13 Jhon: very good tutorials

com.sun.management.jmxremote.port - JMX Agent for Remote Connection
This section provides a tutorial example on how to turn on the out-of-the-box JMX agent on Sun JVM for monitoring tool 'jconsole' to connect from remote machines. 2016-01-13, 4808🔥, 1💬

💬 2016-01-13 vetri: Good

Using Perl LWP Package for Debugging
This section provides a tutorial example on how to use the Perl LWP package to debug JSP applications. The LWP package allows to dump HTTP request and response. It also allows you to control how to manage page redirect. 2016-01-09, 1151🔥, 1💬

💬 2016-01-09 Ilya Evseev: Thank you for useful article!

"gYear", "gMonth" and "gDay" Datatypes
This section describes the built-in primitive datatype, 'gYear', 'gMonth' and 'gDay', that represents years, months and days in Gregorian calendar. Leading and trailing whitespaces are allowed and trimmed. Timezone offset is optional. 2016-01-08, 6544🔥, 2💬

💬 2016-01-08 Herong: Ashok, you are welcome!

💬 2016-01-07 Ashok: Thanks for this descriptive tutorial on Gregorian calendar. I was looking for gDay and could know more about it here.

JMenuItemActionListenerTest.java - Menu Item Action Listener Test
This section provides a tutorial example on how to use java.awt.event.ActionListener, button action listener interface, to catch events fired by JMenuItem objects. 2016-01-07, 567🔥, 1💬

JDBC-ODBC - Creating New Tables in MS Access Database
This section describes how to create a new table in a MS Access database through the JDBC-ODBC driver. 2016-01-07, 2883🔥, 2💬

💬 2016-01-07 Herong: Bertus, what type query do you want to update?

💬 2016-01-06 bertus: How to update a query???

javax.swing.JFileChooser - File Chooser Dialog Box
This section provides a tutorial example on how to use the javax.swing.JFileChooser class to create a file chooser dialog box for the Open command and the Save command. 2016-01-03, 3008🔥, 8💬

💬 2016-01-03 Travis: Hello thanks, Yea I fixed the problem with the forgotten import I should have known better just having a problem with the filein...

💬 2015-12-31 Herong: Travis, May be you forget to import the IO package. The "underline in red" means class definition is missing. Try to add the fol...

💬 2015-12-31 Travis: Missing import.java.io was the problem thanks everyone

💬 2015-12-30 Travis: Value is just a string , String rootDir; still have been playing around with it and can't seem to get it going , very odd:(

💬 2015-12-30 Ken: @Travis, what is the value of "rootDir"? Looks like you are trying to get an inputstream on a directory, not a file.

(More comments ...)

"Repeatable Read" Isolation Level
This section provides a tutorial example on the 'Repeatable Read' isolation level, where reads are guarantied to be repeatable. 2015-12-28, 669🔥, 4💬

💬 2015-12-28 Herong: SqLoveNian, thanks for the additional information. I guess the "phantom read" is just concept defined in the SQL 92 specificatio...

💬 2015-12-24 SqLoveNian: Actually I gave a bad answer. MySql and same goes of course for MariaDB, do not enable generating a phantom read, by running two...

💬 2015-12-23 Herong: SqLoveNian, I will test it with your suggestion. Thanks.

💬 2015-12-21 SqLoveNian: You would get a phantom read if the second query would be SELECT * FROM User

Drawing Graphics - Using paint() on Content Pane
This section provides a tutorial example on how to override the paint() method in the javax.swing.Component class to draw graphics (a rectangle) and use it as the content pane of the frame window. 2015-12-28, 2666🔥, 2💬

💬 2015-12-28 Herong: Kenny, I agree with you. We should be able to draw directly on the default content pane. But we need to find a way to override i...

💬 2015-12-27 Kenny: But I see that this replaces the JFrame's default content pane with a new component? :/ I thought I *could* draw directly unto a...

Testing OpenSSL with file_get_contents()
This section provides a tutorial example on how to test the PHP OpenSSL module with the file_get_contents() function to run a GET request on an HTTPS server. 2015-12-26, 260🔥, 1💬

Create Tables with CLOB Columns
This section describes how to create tables with BLOB (LONGBLOB) columns in Oracle server. 2015-12-24, 942🔥, 1💬

Discontinued: ConversionRate - Get Currency Exchange Rate
This chapter provides a quick introduction of the free Web service, ConversionRate. Topics include usage description of ConversionRate; request message sample; response message sample. 2015-12-23, 791🔥, 1💬

💬 2015-12-23 Jonny: Thanks

ConversionRate - Usage Description
This section describes the free Web service ConversionRate provided by WebserviceX.NET. ConversionRate allows you to obtain the current exchange rate between two given currencies. 2015-12-23, 720🔥, 2💬

💬 2015-12-23 Herong: Marie, I don't know what happened to the webservicex.net server. Hope they will fix the issue soon.

💬 2015-12-22 Marie: Hi, I have been using http://www.webservicex.net/CurrencyC onvertor.asmx?WSDLfor a long time to convert currencies on my web sit...

Crypt::CBC Encryption with Salted Keys
A tutorial Perl example is provided to show how to use Crypt::CBC to perform encryption with a passphrase and a salt, which will be used to derive the secret key and the IV. 2015-12-20, 958🔥, 1💬

💬 2015-12-20 Ed: Great tutorial. It helped me solving my problem. Many thanks!

Integrating PHP with Apache Web Server
This chapter provides tutorial notes on installing Apache Web server on Windows systems. Topics include downloading and installing Apache 2.2.4 binary distribution; configuring Apache to run PHP as CGI scripts; testing PHP scripts on Apache server. 2015-12-17, 776🔥, 2💬

💬 2015-12-17 xen hue: tutorial is very useful

💬 2015-12-17 john doe: this tutorial is very useful.

"adb push" and "adb pull" Commands
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, 14424🔥, 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-...

LookAndFeel and UIManager
This chapter provides tutorial notes and example codes on UI look and feel. Topics include introduction of javax.swing.LookAndFeel and javax.swing.UIManager classes; example programs on how to manage UI look and feel. 2015-12-12, 2082🔥, 1💬

💬 2015-12-12 Adil: Good work

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