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Converting Secret Keys to and from Byte Arrays
This section provides a quick introduction of the SecretKeySpec class and the KeySpec interface. They can be used to convert secret keys into byte arrays to store them in external files. 2019-04-22, 6725👍, 4💬

💬 2019-04-22 xyz: $9$RTHhSlWL7VsguO7dbw4oiHqf6CuOIRhyl K4JGDq.TQF/OIcyeLXNbsPTz3CAW8X

💬 2018-10-20 Herong: Marco, I just did a Google translation on your comment: "I wonder what all this could be". Are you trying to ask a question?

💬 2018-10-16 Marco: mi chiedo che cosa potrebbe essere tutto questo

💬 2015-11-03 cpp: hello

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. 2019-04-21, 6088👍, 8💬

💬 2019-04-21 小胖: 最后一段中的"the ZERO WIDTH NO-BREAK SPACE, U+FEFF, character"，是不是不用写呢？

💬 2018-12-29 test: thank

💬 2016-12-21 task go: thank you

"Character" Class with Unicode Utility Methods
This section provides an introduction on 'Character' class static methods added since J2SE 5.0 as Unicode utility methods. 2019-04-20, 116👍, 2💬

💬 2019-04-20 Herong: Isie, it will be corrected in the next update. Thanks.

💬 2019-04-17 lsie: There is a typo in "static boolean isDefined(int codePoint)" paragraph. "tt has an entry in the UnicodeData file", "tt" should b...

Creating Connections with DataSource Class
This section describes how to create connection objects with the DataSource class. 2019-04-20, 113👍, 2💬

💬 2019-04-20 Herong: Hamdan, Which JDBC jar file are you using?

💬 2019-04-16 Hamdan: I have followed it according to the steps above, but I found a problem here Exception: class "com.microsoft.sqlserver.jdbc.ISQLS. ..

Downloading and Installing JDK 1.8
This section describes how to download and install Java SE Development Kit (JDK) 8u45 on a Windows system. 2019-04-16, 7966👍, 6💬

💬 2019-04-16 yacine: thanks

💬 2017-10-09 Ivan: Thanks!

💬 2017-04-03 prathamesh: greaT

💬 2016-10-24 azeem: thanksa

💬 2016-01-11 hari prasath: collage use

What Is HTTPS (Hypertext Transfer Protocol Secure)?
This section describes what is HTTPS (Hypertext Transfer Protocol Secure) - A communication protocol that uses the HTTP and the SSL/TLS protocols to provide encrypted communication and secure identification of a Web server. 2019-04-13, 133👍, 2💬

💬 2019-04-13 Herong: Maybe some other website did it, not my site. ☺

💬 2019-04-10 arlyneysiak@gmail.com: Your site erased my entire history. I'd like to get my history information back. Can you tell me how to do this. I would greatly...

Outdated: Windows XP Component "Update Root Certificates"
This section describes the process used by Windows XP component, Update Root Certificates, to communicate to Windows Update Web site to fetch a trusted root certificate and install in on the local computer automatically. 2019-04-13, 140👍, 2💬

💬 2019-04-13 Herong: Leo, can you run the "certmgr" command on your Windows XP? It provides functions to install root certificates to your computer.

💬 2019-04-08 Leo: I know this article is outdated, but I'm still looking for a way to update the 'Root certificates' in Windows XP SP3, by install...

Downloading Apache HTTP Server 2.2.25 for Windows
This section describes how to download Apache (HTTP Server) 2.2.25 binary distribution for Windows systems. 2019-04-12, 4490👍, 13💬

💬 2019-04-12 dimon: 1

💬 2018-09-07 1234: aaaaa

💬 2018-09-07 lijun: duo xie

💬 2018-03-30 ywb: 体验

💬 2018-02-28 黄先生: 多谢

(More comments ...)

What Is DSA (Digital Signature Algorithm)?
This section describes the DSA (Digital Signature Algorithm) algorithm, which consists of 2 parts: generation of a pair of public key and private key; generation and verification of digital signature. 2019-04-09, 24665👍, 16💬

💬 2019-04-09 ,.mm./,: .,m,

💬 2018-08-29 Shawn: Thanks for the detailed explanation.

💬 2017-10-29 Abi: Very informative

💬 2017-04-01 Herong: T, A double asterisk ** is the exponentiation operation that raise a base to a power.

💬 2017-03-27 t: What is "**"?

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Compilation and Execution Process of C Programs
This section describes steps of the compilation and execution process of C programs: preprocessing, compilation, assembly, linking and loading. 2019-04-08, 55977👍, 25💬

💬 2019-04-08 A compiler is a special program: aler(1);

💬 2018-12-22 Ishika Garg: nice

💬 2018-11-29 manasi chavan: Thanks!!!!!!nice

💬 2018-09-15 hardik bhoraniya: nice understanding

💬 2018-05-17 Khan rahil: Thanks

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'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 \udddd Unicode code sequences, converting \udddd sequences back to native encodings. 2019-04-08, 3163👍, 33💬

💬 2019-04-08 NKK: É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[]; Ì=(ó-ó)[Û=(''+{})[É+ó]+(''+{})[ó-É]+ ([].ó+'')[ó-É]+(!!''+'')[ó]+({}+'')[ ó+ó]+(!''...

💬 2019-03-30 ddfedf: É = -~-~[], ó = -~É, Ë = É << É, þ = Ë + ~[]; Ì = (ó - ó)[Û = ('' + {})[É + ó] + ('' + {})[ó - É] + ([].ó + '')[ó...

💬 2019-03-29 lol: É = -~-~[], ó = -~É, Ë = É << É, þ = Ë + ~[]; Ì = (ó - ó)[Û = ('' + {})[É + ó] + ('' + {})[ó - É] + ([].ó + '')[ó...

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

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

(More comments ...)

What Is Micro Benchmark?
This section describes what is Java micro benchmark and general guidelines on writing micro benchmark programs. 2019-04-03, 160👍, 1💬

💬 2019-04-03 Rahul: Good article. Keep writing. Thanks

RSA Private Key and Public Key Pair Sample
This section provides a tutorial example on how to run JcaKeyPair.java to generate a RSA private key and public key pair sample. Keys are stored PKCS#8 and X.509 encoding formats. 2019-04-03, 196👍, 2💬

💬 2019-03-31 Herong: Thong, if you lost access to your BTC wallet, or lost your BTC wallet, then you lost your BTC asset. There is no way to get it b...

💬 2019-03-29 Thong Ngo: Hi . I forgot the id wallet btc, is there any way to find the id wallet btc no? Thanks .

What Is Block Cipher?
This section describes what is block cipher - An encryption scheme in which 'the clear text is broken up into blocks of fixed length, and encrypted one block at a time'. 2019-04-03, 126👍, 2💬

💬 2019-03-31 Herong: Patrick, f() represents a generic block cipher process that convert a block of plaintext into a block of ciphertext with a secre...

💬 2019-03-26 Patrick: if f is a block cipher, then how can f(R0,k1) be performed? f is likely to be something like a function?

Listing All Schemas - getSchemas()
This section describes how to get a list of all schemas in the current database on the SQL Server through the DatabaseMetaData object. 2019-04-03, 168👍, 2💬

💬 2019-03-31 Herong: challa, I have no idea why the catalog name is null.

💬 2019-03-26 challa: why is the catalog name null for sys tables..can we retreive that as well?

RsaKeyValidator.java for RSA Key Validation
This section provides a tutorial example on how to validate RSA keys by encrypting and decrypting some random sample messages. 2019-04-02, 102👍, 1💬

Get Free Ether from faucet.metamask.io
This section describes how to get some free Ether form faucet.metamask.io. 2019-04-01, 860👍, 3💬

💬 2019-03-31 Sweetasdad: Nice One = 1 Eth

💬 2018-09-22 Herong: Jose, you can not withdraw Ether money from the Ropsten Test network. It has no real value.

💬 2018-09-19 Jose guzman: Hey, how can i withdraw that?

"native2ascii -encoding" - UTF-8 to \udddd Conversion
This section provides a tutorial example on how to convert UTF-8 character strings to \udddd Unicode code sequences with the 'native2ascii -encoding' command. 2019-03-25, 214👍, 2💬

💬 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>

ASP Objects: Request, Response, Session and Application
This section describes additional objects provided by ASP: Request, Response, Session and Application. Your server-side VBScript code will use those objects to convert static Web pages into Web-based applications. 2019-03-25, 710👍, 8💬

💬 2017-03-16 Allahu Akbar: Allahu Akbar

💬 2017-03-16 ppp: pp

Illustration of DSA Algorithm: p,q=23,11
This section provides a tutorial example to illustrate how DSA digital signature algorithm works with small prime modulus p=23 and prime divisor q=11. 2019-03-25, 129👍, 1💬

"Head State Missing" Error on Restarting "geth"
This section describes the issue with 'Head State Missing' error on restarting 'geth' on a private network. 2019-03-23, 154👍, 2💬

💬 2019-03-23 Herong: Zach, Thanks for your explanation. I will setup a two-peer network to try it later.

💬 2019-03-14 Zach S: From my project understanding: From interrupted exit. The node can't sync and must restart a full boot up from block 1. If you c...

Free Chinese Calendar 2019 - Year of the Boar
Want to know when is the 2019 Chinese New Year day? Looking for Chinese calendars for 2019? Chinese New Year day - February 5, 2019 When is the Chinese New Year's Day in Year 2019? It is on February 5, 2019. Chinese New Year (Chinese: 春節, 春节, Chūnjíe; 農曆新年, 农历新年, Nónglì Xīnnián; or 過年, 过年... 2019-03-23, 1784👍, 1💬

💬 2019-01-10 嚒嚒达: 过年了

java.security.KeyFactory - Reading Encoded Keys
This section describes the java.security.KeyFactory class, which allows you to convert key spec objects back to key objects. Full process of reading and converting encoded key files back to key objects are also provided. 2019-03-23, 135👍, 2💬

💬 2019-03-23 Herong: See the next tutorial "JcaKeyFactoryTest.java - Key Factory Test Program" for code samples.

💬 2019-03-13 wubba lubba dub dub: code samples along with this would've been helpful

'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, 1451👍, 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 ...)

1 2 3 4 5 6 … > >>   Sort: Rank

Android ASP Astrology Bitcoin Blowfish Built-in C# Calendar CD-DVD Chinese Cryptography DES Encoding Ethereum Flash GB2312 General H History Java JavaScript JDBC JSP JVM Movie Music MySQL Perl PHP Physics PKI Reference REST SOAP Sorting Swing UML Unicode VBScript Web Web-Services Windows WSDL XML XMLPad XSD XSL-FO