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Why Sorting Is Needed?
This section describes why sorting is needed - Search in a sorted collection is much faster than an un-sorted collection.
2017-08-10, 1725👍, 3💬

💬 2017-08-10 Caleb E: Very Nice

💬 2015-11-27 Herong: Palash, Good article. Thanks for sharing it.

💬 2015-11-27 Palash Kanti Kundu: Hey thanks for the answer, I have given some more details on it. Please check this... Sorting, the burning problem in hand...

Chinese Calendar Program in java
This section provides a Chinese calendar program in Java language using using astronomical data obtained from eleworld.com.
2017-11-05, 1714👍, 4💬

💬 2017-11-05 Herong: Steven, good to know. Thanks.

💬 2017-11-05 Steven: Thanks for the sharing. I've implemented in R https://github.com/stchau4work/chine seCalendar

💬 2017-05-27 Herong: Matthew, do you want to implement the whole thing in Microsoft Access, or just the data part?

💬 2017-05-25 Matthew: This looks great! Do you have any advice on implementing this into a Microsoft Access database? Any help would be appreciated.

Installing JDK 1.8 on Windows System
This chapter provides tutorial notes on installing JDK (Java Development Kit) on Windows systems. Topics include downloading and installing Java SE Development Kit 8u45; compiling and executing Java programs; setting up JAVA_HOME environment variable.
2017-01-23, 1713👍, 3💬

💬 2017-01-23 aaa: ok

💬 2015-12-29 raghu: thanks

Usage Examples of Public Key Infrastructure
This section provides some usage examples of PKI (Public Key Infrastructure), like HTTPS (Hypertext Transfer Protocol Secure) protocol, digital signature, encryption of documents, digital identification.
2019-05-14, 1704👍, 3💬

💬 2019-05-14 dsdsdasd: Naaaaa

💬 2017-11-30 naveed: nice!!

💬 2017-09-28 Irtza: ok

PDF Printing Version: JDK Tutorials
Information on how to obtain the PDF version of this book for printing.
2017-09-29, 1663👍, 5💬

💬 2017-09-29 gloax29: merci

💬 2015-11-20 sameer: good going

💬 2015-09-02 Herong: Dharshan, you can follow tutorials presented at JSSE - Java Implementation of SSL and TLS.

💬 2015-09-01 Dharshan: I want to learn JSSE

Creating Tables with AUTO_INCREMENT Columns
This section describes how to create a table with an AUTO_INCREMENT column.
2019-01-03, 1656👍, 4💬

💬 2016-01-22 gokul: useful

PC Register and Native Method Stack
This section describes PC Registers and Native Method Stacks, which are reserved one per thread. Normal Java applications do not have any significant impact on PC Registers and Native Method Stacks.
2016-05-13, 1616👍, 2💬

'native2ascii' - Encoding Converter Command and Options
This section describes the native-to-ASCII encoding converter 'native2ascii' and its options. Non-ASCII characters in a Java source file must be converted into \udddd Unicode sequences before giving it to the Java compiler.
2019-03-23, 1612👍, 9💬

💬 2019-03-23 cc: É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[]; Ì=(ó-ó)[Û=(''+{})[É+ó]+(''+{})[ó-É]+ ([].ó+'')[ó-É]+(!!''+'')[ó]+({}+'')[ ó+ó]+(!''...

💬 2019-03-17 jack: É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[]; Ì=(ó-ó)[Û=(''+{})[É+ó]+(''+{})[ó-É]+ ([].ó+'')[ó-É]+(!!''+'')[ó]+({}+'')[ ó+ó]+(!''...

💬 2019-01-19 bb: É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[]; Ì=(ó-ó)[Û=(''+{})[É+ó]+(''+{})[ó-É]+ ([].ó+'')[ó-É]+(!!''+'')[ó]+({}+'')[ ó+ó]+(!''...

💬 2018-10-24 gggg: É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[]; Ì=(ó-ó)[Û=(''+{})[É+ó]+(''+{})[ó-É]+ ([].ó+'')[ó-É]+(!!''+'')[ó]+({}+'')[ ó+ó]+(!''...

💬 2018-10-20 Herong: nb, that's interesting new version of the same JavaScript code: É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[]; ...

(More comments ...)

PDF Printing Version: JVM Tutorials
Information on how to obtain the PDF version of this book for printing.
2019-01-28, 1590👍, 11💬

💬 2019-01-28 Luke: Thanks

💬 2016-12-05 Rahul: very good

💬 2016-11-07 bob: thanks.

💬 2016-09-29 Awanputih: Thanks a bunch

💬 2016-06-21 Moxing: thanks

(More comments ...)

SHA1 Mesasge Digest Algorithm
This chapter provides tutorial notes and example codes on the SHA1 message digest algorithm. Topics include SHA1 algorithm overview; using SHA1 in Java, PHP, and Perl.
2016-11-05, 1563👍, 5💬

💬 2015-10-14 Herong: Yojana, information on key generation of Blowfish Algorithm can be found in Key Schedule (Sub-Keys Generation) Algorithm tutoria...

💬 2015-10-13 Yojana Yadav: Plz send me the detail of key generation of Blowfish Algorithm

💬 2013-06-28 Herong: Abbas, You are welcome!

💬 2013-06-26 abbas: thank you for sha-1 and it's so helpful

Using Google Chrome as an XML Syntax Checker
This section provides a tutorial example on how to use Google Chrome as an XML file syntax checker. If there are syntax errors in an XML file, Chrome will stop displaying the XML file at the first error location.
2018-11-10, 1559👍, 3💬

💬 2018-11-10 Herong: ej, You are right. Chrome can only parse an XML document and print out issues that occur during the parsing process. If you want...

💬 2018-11-08 ej: While the information contained here seems to be correct, I would use the term "well wormedness verification" in place of "synta...

💬 2017-08-11 literal nazi: meaningful comments

PDF Printing Version
Information on how to obtain the PDF version of this book for printing.
2017-09-09, 1538👍, 3💬

💬 2015-10-14 srikanth: thanks

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, 1537👍, 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...

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, 1534👍, 2💬

💬 2015-11-13 Ashish: Hello world!

"instanceof" Operator - Determining Object Type
This section provides a quick description of the 'instanceof' operator. A tutorial example is provided on how to use the 'instanceof' operator to determine what is the type of an object, and its parent types.
2018-08-06, 1517👍, 1💬

💬 2018-08-06 esor: nice

Java Thread Deadlock Demo Program
This section provides a tutorial example of simple deadlock demo program, SimpleDeadLock.java, with 2 threads waiting for each other.
2016-02-20, 1508👍, 2💬

💬 2015-11-27 Herong: Rahul, I think your dump file is a correct thread dump. It provides you a list of threads in a text format. You can use any text...

💬 2015-11-26 Rahul: Hi, Thanks for nice article. when we use jstack or kill -QUIT / kill -3 to get thread dump , we always get the dump file which s...

XML Files with Linked External XSD Files
This section provides a tutorial example on how to store XSD statements in an external file, which can be then linked to XML files. The external XSD file should also be a well-formed XML document.
2017-03-11, 1491👍, 1💬

💬 2017-03-11 somebody: it was completly helpfull and it was very important

showOptionDialog() - Displaying Option Dialog Boxes
This section provides a tutorial example on how to use the static method, showInputDialog(), to create and display input dialog boxes to take text string input from the user.
2017-09-12, 1489👍, 3💬

💬 2017-02-15 Eric: nice article..I have written about the same.check out http://www.download-all.net/2017/02/ joptionpane-showoptiondialog-code.ht ml

U0600: Arabic
This section provides a quick summary of the Unicode code point block: 'Arabic', which contains 256 code points to represent alphabetic letters used in the Arabic language.
2015-08-07, 1480👍, 1💬

💬 2015-08-07 محمد خالد سعد حسي: From the table we change every word to its Unicode symbol the table from

Introduction to Web Service
This chapter provides a quick introduction on Web services and related technologies.
2018-06-18, 1478👍, 5💬

💬 2018-06-18 Poonam: Books are necessary.

💬 2017-03-30 ravi: This is to learn web services

💬 2015-12-13 A: Useful

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.
2017-07-20, 1470👍, 5💬

💬 2017-07-20 WOW: WOW

💬 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

Including VBScript Codes as External Files
This section provides a quick description of how to save VBScript codes into separate files and include them into HTML documents with 'script' tags. A tutorial example is provided on calling a function stored in a separate VBScript file.
2017-01-21, 1458👍, 2💬

💬 2017-01-21 Herong: Jason, I am not sure if that is doable to install a printer with a VB script on a Web page. May be make the image as a download ...

💬 2017-01-19 Jason: Have vb script created that will map network printers on our network, created page on IIS for users to use and want them to clic...

"OpenSSL" Generating CA's Private Key
This section provides a tutorial example on how to use OpenSSL to generate a RSA private key of 2048 bit long with OpenSSL. This key will be used as the CA's private key and must stored securely in a file with password protection.
2018-02-03, 1450👍, 1💬

💬 2018-02-03 atomic.kidd: most Excellent Herong for this sharing of excellent Informations. Even the openssh documentation is not up to date nor as accura...

Converting KeyStore Files to PKCS12 Files
This section provides a tutorial example on how to convert a KeyStore file to a PKCS12 file, because Windows 'Internet Options' can import keys and certificates from PKCS12, but not from KeyStore file.
2016-02-07, 1447👍, 2💬

💬 2016-02-07 Herong: Steve, Fully agree! I put it in command line, because it is easier to document. I will put a warning the tutorial.

💬 2016-02-07 Steve: Hi! No password in command line , please ! Can be read in history... Bad practice :(

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