Herong's Tutorial Examples

Ethereum Tutorials - Herong's Tutorial Examples
This book is a collection of tutorial examples on Ethereum and blockchain. Topics include include: What is Ethereum; What is blockchain; Ethereum market value; What is Go Ethereum (Geth); Running a private Ethereum network with Geth; What is Ethereum Mist wallet; What is MetaMask wallet; Ethereum mi... 2022-07-10, 3640👍, 4💬

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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. 2022-09-27, 80792👍, 226💬

💬 2022-09-27 Garry Myles: My name is Garry Myles. I love playing the lottery game and I have been buying lottery tickets for the past 20 years, but I have...

💬 2022-09-25 Mike Luciano: Hi everyone... I am Mike Luciano and I’m so addicted to winning the lottery. I’ve just scooped my FOURTH jackpot of $1million –...

💬 2022-09-23 Garry Myles: HOW I WON $22 MILLION: My name is Garry Myles. I love playing the lottery game and I have been buying lottery tickets for the pa...

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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, 118👍, 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, 20266👍, 29💬

💬 2022-09-26 Andrii: 4

💬 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

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Ethereum Public Key and Private Key Example
This section describes examples of public key and private key of an Ethereum account. 2022-09-26, 18687👍, 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...

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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. 2022-09-26, 33721👍, 118💬

💬 2022-09-26 Ralph Turner: I am Ralph Turner, i based in Bristol City in England. I won the EuroMillions Millionaire Raffle prize of £250,000,000 on Septem...

💬 2022-09-23 Daniel: HOW CAN I WIN LOTTERY WITH SPELL CALL/WHATSAPP: +16692213962 I am very happy to share this great testimonies, The best thing tha...

💬 2022-09-21 Margaret Atwood: Hello everyone, I want to use this medium to thank a great spell caster called Dr Graceondu for transforming my life financially...

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Get Free Ether from faucet.metamask.io
This section describes how to get some free Ether form faucet.metamask.io. 2022-09-26, 66000👍, 440💬

💬 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

💬 2022-09-13 oiiii: 0xA93Fb1FB7BEcB4DB425361ba33d63F405E 717A4c

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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, 2813👍, 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, 336👍, 4💬

💬 2022-09-18 Th: Th

💬 2022-09-18 Tha: Hi

💬 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, 1410👍, 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........

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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, 46540👍, 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...

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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, 3491👍, 9💬

💬 2021-06-21 Ashish: thank

💬 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, 19326👍, 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

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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, 437👍, 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, 5497👍, 13💬

💬 2021-05-05 2: alert("hola");

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

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

💬 2021-01-04 ddd: <script>hi()</script>

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

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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 (ä½•æ—¥å›å†æ¥) - 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, 13760👍, 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...

Get Free Ether from faucet.ropsten.be
This section describes how to get some free Ether from faucet.ropsten.be. 2022-08-31, 7514👍, 72💬

💬 2022-08-31 Lzilf: 0x5fc10B6DFBd1cDe13fABaCDCd8cC8458C5 DE13E9

💬 2022-08-15 xxcccc: 0x3BA89B10a8f1A0B2F5738D517C688Fb496 7C01be

💬 2022-06-21 mikz: 0x9A9Db6f0DCd8d78208Bf1727a15b2A4Efd a13D05300 test eth ilove you guys

💬 2022-06-20 0x6a411Be2a84eaf31d9F6092CA08F36: 0x6a411Be2a84eaf31d9F6092CA08F364Fb9 Fe1350

💬 2022-05-28 Herong: Test Ethers sent.

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Bitcoin Core Daemon
This section describes what is Bitcoin Core Daemon. 2022-08-29, 131👍, 1💬

💬 2022-08-29 edward: more info arent there more options? thanks

What Is XML Tools Plugin for Notepad++
This section describes XML Tools Plugin, which provides a small set of useful tools for editing XML documents in Notepad++. 2022-08-28, 20830👍, 13💬

💬 2022-08-28 Andrew E. Cook Cook: Hi there! thanks for this helpful tutorial! With goomaps, adding a location to your WordPress website is easy. The most user-fri...

💬 2018-12-07 David: thanks

💬 2018-11-22 Sac: great

💬 2018-04-11 boy: jo schen donk junger monn

💬 2017-10-10 Froes: valeu

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Android Emulator for 7 Inch Tablet
This section provides a tutorial example on how to create and run an Android Emulator for 7 inch tablets. 2022-08-28, 218👍, 2💬

💬 2022-08-28 Payton: This is amazing! You are awesome!

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