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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💬

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💬

Base64 Encoding Algorithm
This section describes the Base64 encoding algorithm with some simple encoding examples.
2022-09-26, 20265👍, 29💬

Ethereum Public Key and Private Key Example
This section describes examples of public key and private key of an Ethereum account.
2022-09-26, 18684👍, 36💬

Comment Testing Area
What is test testing area for? The testing area is provided to allow visitors to post testing comments.
2022-09-26, 33714👍, 118💬

Get Free Ether from faucet.metamask.io
This section describes how to get some free Ether form faucet.metamask.io.
2022-09-26, 65997👍, 440💬

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💬

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💬

What Is Ethereum Testnet: Ropsten Network
This section describes what is Ethereum Testnet: Ropsten Network.
2022-09-14, 1410👍, 6💬

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, 46536👍, 10💬

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, 3486👍, 9💬

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💬

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💬

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💬

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💬

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💬

Get Free Ether from faucet.ropsten.be
This section describes how to get some free Ether from faucet.ropsten.be.
2022-08-31, 7513👍, 72💬

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

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💬

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💬

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