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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, 1530👍, 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 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, 1529👍, 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

Introduction to Web Service
This chapter provides a quick introduction on Web services and related technologies.
2018-06-18, 1524👍, 5💬

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

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

💬 2015-12-13 A: Useful

Removing IE Addon "PDF Link Helper"
This section provides a tutorial example on how to disable and remove 'PDF Link Helper' addon from Internet Explorer.
2016-10-25, 1506👍, 2💬

💬 2016-10-25 Herong: Paul, can you share your solution?

💬 2016-10-24 Paul-H: This is stupid solution.

"openssl enc" Converting Keys from Binary to PEM
This section provides a tutorial example on how to convert a private and public key pair stored in binary PKCS#8 format into PEM (Privacy Enhanced Mail) format with the 'openssl enc' command.
2018-01-20, 1501👍, 2💬

💬 2018-01-20 Herong: Dan, Thanks for comment. The "-inform" and "-outform" options are definitely better options. This tutorial will be updated.

💬 2018-01-17 Dan Lukes: openssl dsa understands binary key's format as well. Just claim it using option '-inform DER'. Moreover, 'openssl dsa -inform DE...

Installing MySQL 4.0.18
This section provides a tutorial example on how to install MySQL 4.0.18 on a Windows system.
2015-07-30, 1475👍, 2💬

💬 2015-07-29 Herong: Stanley, what version of MySQL Control Center are you using?

💬 2015-07-28 stanley: hi, I need help, I downloaded the MySQL server, but it gives me an error on MySQL control center, "client does not support authe...

Using Microsoft Excel as a Unicode Text Editor
This chapter provides notes and tutorial examples on using Microsoft Excel as a Unicode text editor. Topics including testing to open text files in 3 encodings: UTF-8, UTF-16BE, and UTF-16LE; saving and opening Unicode text files in UTF-16 (Little-Endian with BOM) format.
2016-10-03, 1472👍, 1💬

💬 2016-10-03 zoltan: useful

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, 1471👍, 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 :(

binmode() - Opening Files for Binary Input
This section describes steps on how to open file for binary input using open(), binmode() and read() functions.
2019-05-19, 1401👍, 3💬

💬 2019-05-18 Herong: Anuj, Yes, you can read file without binmode, even if the file is binary. But the input byte stream will be interpreted as encod...

💬 2019-05-15 Anuj Jain: can we read file without binmode if a file is binary

💬 2016-01-13 Bin: The quick brown fox jumps over the lazy dog

Saving Files in "Unicode (UTF-8)" Option
This section provides a tutorial example on how to save text files with Nodepad by selecting the 'Unicode (UTF-8)' encoding option on the file conversion dialog box.
2018-07-17, 1400👍, 2💬

💬 2018-07-17 Me: Very good, but Unicode (nothing else) worked for me!

💬 2016-10-08 shital p: it's works fine for me thank u

Chinese Character String with Big5 Encoding
This section providing information on handling Chinese character string literals in Big5 encoding.
2015-09-29, 1400👍, 1💬

💬 2015-09-29 你好: 你好

'javascript:' Pseudo-URL Addresses
This section describes what is a 'javascript:' pseudo-URL address and provides several interesting examples of 'javascript:' URLs.
2017-01-25, 1393👍, 3💬

💬 2016-03-01 Anuag Dobade: thanks really helpful blog

Converting Perl Script to Executable Binary
This chapter provides tutorial examples and notes about converting Perl script files to executable binary files. Topics include Perl script conversion tools: PerlApp and Perl2Exe; installing Perl Dev Kit with PerlApp, running PerlApp to convert DirGrep.pl to DirGrep.exe.
2016-02-18, 1384👍, 2💬

💬 2016-02-18 Herong: Edgar, Thanks for sharing your script. I will test it and may include it in the next version of this book.

💬 2016-02-16 Edgar: # program to remove a leading UTF-8 BOM from a file # works both STDIN -> STDOUT and on the spot (with filename as argument) if ...

Downloading and Installing JDK 1.8.0 on Windows
This section provides a tutorial example on how to download and install JDK 1.8.0 (Java SE 8) on a Windows 7 system. A simple Java program was entered, compiled, and executed with the new JDK installation.
2019-05-13, 1378👍, 3💬

💬 2019-05-13 Myo Nyein: thanks

💬 2016-03-10 sudha: thanks

💬 2015-09-22 ram: no

Managing JAR Files with WinZIP
This section provides a tutorial example on how to manage a JAR file as a ZIP file with the ZIP tool, WinZIP.
2016-06-10, 1377👍, 2💬

💬 2016-06-10 Herong: Jordyn, can you try to follow Test #1 mentioned in the tutorial to open a .jar file with WinZIP?

💬 2016-06-10 Jordyn: This still doesn't quite help with opening the files for me. How do you open a .jar file? :/

Listing All Databases - getCatalogs()
This section describes how to get a list of all databases on the SQL Server through the DatabaseMetaData object.
2017-08-21, 1372👍, 2💬

💬 2017-08-18 Herong: Rahui, run this program on MySQL, you will get the answer.

💬 2017-08-15 Rahul Hajare: Can this example usefull for mayql database please tell me fast... Thanks...

UUEnccode Algorithm
This section describes the UUEncode algorithm with some simple encoding examples.
2016-09-12, 1342👍, 4💬

💬 2016-06-08 Herong: Neel, can you post an example of the uuencoded string that failed? May be we can figure the root cause of the issue.

💬 2016-06-01 Neel: Hi, we are using this uudecoder since long time in our code but recently we are facing issue like "Index out of range" and that ...

💬 2015-09-16 Mark Sitkowski: Excellent! Just what I was looking for

What Is Lorentz Factor?
This section introduces Lorentz Factor, which is the factor used in the time dilation and other formulas in special relativity.
2019-08-29, 1316👍, 3💬

💬 2019-08-29 Carl Burrnett: This was immensely helpful in my pursuit of trying to understand theoretical physics.

💬 2017-09-24 Shuvojit khan: There is anothere equation ΔE=PΔT

💬 2017-04-30 Abhishek Dogra: Thanks

Configuring Crossover Cable Network
This section provides a tutorial example on how to configure a crossover cable network.
2016-10-06, 1309👍, 2💬

💬 2016-10-06 Herong: John, good question, and I don't know the answer. Maybe someone else can help to answer.

💬 2016-09-29 John Wboson: Two computers, one headless - no keyboard, no mouse, no monitor would be a welcome example through a cross-over or IPV6 connecti...

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, 1300👍, 1💬

💬 2015-10-27 Budiyanto: Thank's

SslReverseEchoer.java - SSL Server Socket Example
This section provides a tutorial example on how to write a sample program to create a SSL server socket to listen for incoming SSL socket connection requests from client machines.
2017-11-27, 1295👍, 1💬

Perl Script Conversion Tools
This section describes why and how to convert Perl script files to executable binary files. ActivePerl Dev Kit and Perl2Exe are two popular conversion tools for Windows systems.
2019-07-21, 1294👍, 5💬

💬 2019-07-21 Herong: rrr, Thanks for sharing your Perl script. But I don't see any benefit of removing BOM from a Unicode text file. Without BOM, the...

💬 2019-07-20 rrr: # program to remove a leading UTF-8 BOM from a file # works both STDIN -> STDOUT and on the spot (with filename as argument) if ...

💬 2016-03-28 de: ~ m/^p(\d+)_.*\

💬 2016-01-27 Herong: Ram, can you tell us what is the purpose of your Perl script?

💬 2016-01-26 ram: open(FEATURE, $ARGV[0]); while(&lt;FEATURE>) { chomp; if(/^\s*$/) { next; } elsif(/^Enter word or sentence/) { next; } elsif...

Outdated: Downloading and Installing JDK 1.3.1 on Windows
This section provides a tutorial example on how to download and install JDK (or J2SE) 1.3.1 on a Windows 2000 system. A simple Java program was entered, compiled, and executed with the new JDK installation.
2018-11-13, 1293👍, 3💬

💬 2017-08-07 anurag tiwari: i 'm not satisfied with your features

Downloading and Installing GNU Unifont
A tutorial example is provided on how to download and install GNU Unifont font family on Windows 7 systems.
2019-07-28, 1282👍, 3💬

💬 2019-07-28 dipen: thank you.

💬 2015-12-06 Herong: D, maybe you can start with What Is Unicode?.

💬 2015-12-05 d gayen: i want to understand what is unicode

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