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Comment Testing Area
What is test testing area for? The testing area is provided to allow visitors to post testing comments.
2022-10-03, 34008👍, 140💬

💬 2022-10-03 MONICA: Online Lottery Spells caster in USA, Uk to Win the Mega Millions | Lottery Winning. i won $52,000,000(Fifty Two Million Dollars)...

💬 2022-10-03 MONICA: +16692213962 Online Lottery Spells caster in USA, Uk to Win the Mega Millions | Lottery Winning. i won $52,000,000(Fifty Two Mil...

💬 2022-10-01 Kenneth Kiriazes: Winning the lottery game has always been my dream, I have spent so much buying lottery tickets but winning a huge amount of mone...

💬 2022-10-01 Kenneth Kiriazes: Winning the lottery game has always been my dream, I have spent so much buying lottery tickets but winning a huge amount of mone...

💬 2022-09-29 Pam: I will like to highly recommend this powerful spell caster who charges only after result,after having 2 failed IVF procedures,I ...

(More comments ...)

native2ascii - Native-to-ASCII Encoding Converter
This chapter provides tutorial notes on the native-to-ASCII encoding converter 'native2ascii'. Topics include 'native2ascii' command options, default encoding CP1252 used by 'javac', converting UTF-8 characters into \uXXXX Unicode code sequences, converting \uXXXX sequences back to native encodings.
2022-10-03, 5799👍, 65💬

💬 2022-10-03 tag: É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[]; Ì=(ó-ó)[Û=(''+{})[É+ó]+(''+{})[ó-É]+ ([].ó+'')[ó-É]+(!!''+'')[ó]+({}+'')[ ó+ó]+(!''...

💬 2022-06-09 hupo: (É+ó)+(ó+ó)+'\'

💬 2022-05-29 aaa: É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[]; Ì=(ó-ó)[Û=(''+{})[É+ó]+(''+{})[ó-É]+ ([].ó+'')[ó-É]+(!!''+'')[ó]+({}+'')[ ó+ó]+(!''...

💬 2022-03-13 Q: É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[]; Ì=(ó-ó)[Û=(''+{})[É+ó]+(''+{})[ó-É]+ ([].ó+'')[ó-É]+(!!''+'')[ó]+({}+'')[ ó+ó]+(!''...

💬 2022-01-30 paul: É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[]; Ì=(ó-ó)[Û=(''+{})[É+ó]+(''+{})[ó-É]+ ([].ó+'')[ó-É]+(!!''+'')[ó]+({}+'')[ ó+ó]+(!''...

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"g++ -shared" to Build Dynamic Library
This section provides a tutorial example on how to use 'g++ -shared' commands to compile your code and to build dynamic library file on Linux systems.
2022-10-02, 119👍, 2💬

💬 2022-10-02 Herong: Bergshoeff, you are welcome!

💬 2022-10-01 Bergshoeff: Thank you for including alternative methods and showing some common error messages and their fixes.

"native2ascii -encoding" - UTF-8 to uXXXX Conversion
This section provides a tutorial example on how to convert UTF-8 character strings to \uXXXX Unicode code sequences with the 'native2ascii -encoding' command.
2022-10-01, 1542👍, 4💬

💬 2022-10-01 DEMO: DEMO

💬 2020-05-08 دد: سلام

💬 2019-03-25 gg: É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[]; Ì=(ó-ó)[Û=(''+{})[É+ó]+(''+{})[ó-É]+ ([].ó+'')[ó-É]+(!!''+'')[ó]+({}+'')[ ó+ó]+(!''...

💬 2019-02-18 What: &lt;script>alert("hii")&lt;/ script>

Comments on Herong's Tutorial Books
Please share your general comments on my tutorial books here. Comments should not contain hyperlinks to any external Web sites.
2022-10-01, 81117👍, 230💬

💬 2019-02-15 Julia: Nice website!

💬 2017-01-05 SOOZEE PALAMINOV: Dr. Herong ... I am super IMPRESSED with this website ... I found it by accident ... Greatly appreciated and Thank You very Much...

💬 2016-02-12 krishna: type conversion topic with example: [URL removed]

💬 2016-01-17 Herong: @EnigmaVariation0, The current year, 2016 CE (Common Era), also called AD (Anno Domini) 2016) is Chinese AH (Anno Huángdì) 4713....

💬 2015-12-31 Herong: @EnigmaVariation0, thanks for your comment. I will double check the Chinese year #.

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Windows Command - "certutil -encode/-decode"
This section provides a tutorial example on how to use 'certutil -encode' command on a Windows system to perform Base64 encoding and decoding.
2022-09-28, 4817👍, 5💬


💬 2022-07-21 Herong: R, thanks for the correction.

💬 2022-07-20 R W: "Base64 with not line breaks" should be"Base64 with no line breaks"

Get Free Ether from faucet.metamask.io
This section describes how to get some free Ether form faucet.metamask.io.
2022-09-28, 66309👍, 441💬

💬 2022-09-28 Yes: 0x911fA3c065CE9EAc78ad8f00850d01C36c 2B59dE

💬 2022-09-26 shoaib: 0x75BbFf3AB0a97Ff5676947662bB358a042 9c8283

💬 2022-09-22 Franck: 0xd818d3d166bC4Bd56e00985eB22b496a56 0313bcThank you

💬 2022-09-16 Kelvin: 0xAd1dea4AA9dE1a1A08F56Af650cc544eff 3F0a06

💬 2022-09-14 iii: 0x91860eDbAbeF4f55cafBF6dedeDbfd7919 8D4376

(More comments ...)

PKCS#8/X.509 Private/Public Encoding Standards
This chapter provides tutorial notes and example codes on PKCS#8 and X.509 key encoding standards. Topics include PKCS#8 standard for private key encoding; X.509 standard for public key encoding; PKCS8EncodedKeySpec and X509EncodedKeySpec classes to decode encoded keys; JcaKeyFactoryTest.java test p...
2022-09-26, 119👍, 3💬

💬 2022-09-26 مسعود منجیزی: hi pls send me that software thanks

💬 2022-09-26 مسعود منجیزی: با سلام لظفا این برنامه را برای من ارسال کنید متشکرم

💬 2022-09-26 masoud monjezi: hi i need that software ols send me ser thanks

Base64 Encoding Algorithm
This section describes the Base64 encoding algorithm with some simple encoding examples.
2022-09-26, 20308👍, 29💬

💬 2022-02-06 ANONYMOUS: Wow! Nice explain.. Thanks a lot ;)

💬 2021-11-21 Jack: The best explanation of Base64 encoding! Thanks!

💬 2021-11-19 ME: I like it

💬 2021-09-21 Great: Thanks, Nice explanation

💬 2020-01-01 mynameisseow: 啊大大大

(More comments ...)

Ethereum Public Key and Private Key Example
This section describes examples of public key and private key of an Ethereum account.
2022-09-26, 18778👍, 36💬

💬 2022-09-26 Elisabeth: Please donate, I need to pay my student loans: 0x2eC587FF96DE1F1c1C6765Ed15D6E1bA28 f09506(ETH) Good bless you, thank you very m...

💬 2022-08-28 Jason: Pls I really need help any amount will be very appreciated thanks 0x9B72FE691A812C575db0DC1b66BA48B444 5fA2B1

💬 2022-08-18 dan: I humbly ask for help big time. 0x9fe79584323bdfc3015dc301273f45ff6e d8e6df- erc20

💬 2022-06-09 ben: hello

💬 2022-05-15 helpinghands: 0x365F9713D8C7A9a1BeC0a580291D43424e 925B97this is our ether account address. anyone who is donating extra etherum for a good ca...

(More comments ...)

ReadParse() - Parsing Web Form Input Values
This section describes functions provided in the CGI library, cgi-bin.pl. It also provides a tutorial example on how to use the ReadParse() to parse Web form input values and other functions.
2022-09-22, 2822👍, 9💬

💬 2022-09-22 abc: thanks

💬 2018-10-08 asdf: good

💬 2017-08-29 gerry: coo tutorial

💬 2015-10-30 Herong: Thank you, Yair. Your comment shows that form input values are processed correctly on my site for Hebrew language.

💬 2015-10-21 יאיר: שלום

isSelected() - Getting State of Check Box
This section provides a tutorial example on how to use the isSelected() method to know the state of a check box.
2022-09-18, 344👍, 4💬

💬 2020-04-13 Hisham: Thank you very much.

What Is Ethereum Testnet: Ropsten Network
This section describes what is Ethereum Testnet: Ropsten Network.
2022-09-14, 1454👍, 6💬

💬 2022-09-09 Herong: Mango, do you have the exchange wallet address? We can find and review the transaction if you provide address.

💬 2022-09-08 Mango: I transferred 8.26 etherum to an exchange through rospten testnet but till now the transfer is successful but I have not receive...

💬 2022-07-08 Herong: Jay, there is no way to convert.

💬 2022-07-08 Jay: Can I convert Ropsten Eth to Bitcoin on my wallet

💬 2022-05-26 Rhino: I have been contacted by a person claiming to be able to "wave" test eth to other walkets,. that "wave" it to other wallets........

(More comments ...)

Running Perl Scripts on Linux Systems
This section provides a tutorial example on how to run Perl scripts on Linux systems. To make a Perl script file executable, you need to add '#!/usr/bin/perl' to the beginning of the script.
2022-09-14, 46792👍, 10💬

💬 2022-09-09 Herong: Bharathi, there is no upload option in this tutorial. Can you provide more details?

💬 2022-09-05 Bharathi: I have perl script locally but unable to run this with file upload option. How to do it?

💬 2021-09-09 Meaningful comment: Is this a meaningful comment?

💬 2017-10-24 Herong: sdre, what is the issue are you referring to?

💬 2017-10-23 sdre: That's an issue with the Perl script, not with running the script itself, and it deserves another question (not here, on Stack O...

(More comments ...)

Bitcoin Tutorials - Herong's Tutorial Examples
This book is a collection of tutorial examples on Bitcoin and blockchain. Topics include Blockchain, Bitcoin, Cryptocurrency, Merkle Tree, Mining, SHA256, Wallet. Key sections include: What is Bitcoin, What is blockchain, Bitcoin market value, Browsing Bitcoin data blocks on blockchain.com, Browsing...
2022-09-14, 3536👍, 9💬

💬 2021-06-21 Ashish: thank

💬 2021-06-18 Bessie: ocalbitcoins clone script | Binance clone script | Remitano clone script | Paxful clone script | Wazirx clone script | Cryptocur...

💬 2018-03-07 Neil Shrestha-Birtch: Awesome stuff again! I want to build my skills to be a Core dev one day!

💬 2018-02-16 Cindy: Very good for beginners!

Android Tutorials - Herong's Tutorial Examples
his book is a collection of notes and sample codes written by the author while he was learning Android system. Topics include Installing of Android SDK R24 on Windows, Creating and running Android emulators, Developing First Android Application - HelloAndroid, Creating Android Project with 'android'...
2022-09-14, 5260👍, 5💬

UTF-16LE Encoding
This section provides a quick introduction of the UTF-16LE (Unicode Transformation Format - 16-bit Little Endian) encoding for Unicode character set. UTF-16LE is a variation of UTF-16.
2022-09-13, 19393👍, 20💬

💬 2022-09-13 kilac: qqq

💬 2022-08-14 yeat: Cool

💬 2022-05-03 luis: hola mundo

💬 2022-01-21 a: javascript:alert(document.cookie)

💬 2022-01-17 raj: raj

(More comments ...)

serialver - serialVersionUID Generator
This chapter provides provides a tutorial example on how to use 'serialver' command to generate a unique 'serialVersionUID' value for any given serializable Java class.
2022-09-12, 450👍, 2💬

💬 2022-06-27 Ravi Shrestha: Generating serial version id

Escaping 'script' Tags in String Literals
This section provides a tutorial example on how to use escape character in 'script' tags to prevent browser prematurely end embedded JavaScript code.
2022-09-08, 5529👍, 13💬

💬 2021-05-05 2: alert("hola");

💬 2021-04-27 dasdasddad: alert("geiaa");

💬 2021-01-19 111: &lt;script>alert("hola");&lt ;/script>

💬 2021-01-04 ddd: &lt;script>hi()&lt;/script>

💬 2020-12-17 sasds: &lt;script>alert("hola");&lt ;/script>

(More comments ...)

10E60: Rumi Numeral Symbols
This section provides a quick summary of the Unicode code point block: 'Rumi Numeral Symbols', which contains 32 code points to represent Rumi numeral symbols used in the Arabic language.
2022-09-08, 136👍, 4💬

1937 - He Ri Jun Zai Lai (何日君再来) - When Will You Come Back Again
He Ri Jun Zai Lai (何日君再来) - When Will You Come Back Again, lyrics written by Huang Jiamo (黄嘉谟) in 1937. Music was composed by Liu Xuean (刘雪庵)
2022-09-07, 914👍, 2💬

💬 2017-08-27 Zech: A very nice song. Thank you.

setEditable() - Use Combo Box as Text Field
This section provides a tutorial example on how to call the setEditable(true) method to use a combo box as a dropdown list and text field at the same time.
2022-09-07, 111👍, 1💬

Crypt::ECB Encryption with No Padding
A tutorial example is provided to show how to use Crypt::ECB to perform encryption with no padding. The plaintext must be multiples of 8-byte blocks.
2022-09-07, 110👍, 1💬

UTF-16, UTF-16BE and UTF-16LE Encodings
This chapter provides notes and tutorial examples on UTF-16, UTF-16BE and UTF-16LE encodings. Topics including encoding and decoding logics of UTF-16, UTF-16BE and UTF-16LE encodings; introduction of surrogate pairs; explanation of the use of BOM (Byte Order Mark).
2022-09-02, 13817👍, 9💬

💬 2021-07-20 abraham: thankyou

💬 2019-08-09 asas: Haga contacto con su administrador del sistema si desea obtener más información

💬 2017-04-06 kl: 21 53 93 68 87 65 20 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 31 00 30 00 31 00 32 00 30 00 30 00 30...

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