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"Head State Missing" Error on Restarting "geth"
This section describes the issue with 'Head State Missing' error on restarting 'geth' on a private network.
2020-07-22, 671👍, 5💬

💬 2020-07-15 Herong: lhq, it might be resolved in newer versions. But I haven't get any chance to verify this.

💬 2020-07-11 lhq: How was it resolved? consult

💬 2020-07-11 lhq: 最后怎么解决的?请教

💬 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...

XSLT Transformation
This section provides a tutorial example on how to perform XSLT (Extensible Stylesheet Language Transformations) using XML Tools Plugin in Notepad++.
2020-07-22, 24448👍, 20💬

💬 2020-07-15 Herong: Does anybody have suggestions for CC?

💬 2020-07-10 CC: Hi, Does notepad++ doesn't support XSLT 2.0? I have my XSL file working perfectly in Oxygen ( though going to be expired ) and I...

💬 2018-11-23 Robert: Super, Thank you very much.

💬 2018-11-22 Herong: Shu, The "dictionary.xsl" listed above is a valid XSLT file. Can you double check the steps on how you performs the transformati...

💬 2018-11-13 Shu: I used the sample and then got an error "Unable to apply transformation on current source. Make sure that XSL is valid". What's ...

(More comments ...)

GetQuote - Usage Description
This section describes the free Web service GetQuote provided by WebserviceX.NET. GetQuote allows you to obtain the stock quote of a given stock symbol.
2020-07-17, 157👍, 1💬

💬 2020-07-17 Avery: Beaver says I also have such interest, you can read my profile here: iMessage Download

Downloading and Installing Android SDK R24
This section provides a tutorial example on how to download and install Android SDK (Software Development Kit) Revision 24 on Windows systems.
2020-07-05, 130👍, 1💬

References Used in Notes on Physics
List of reference materials used in this book.
2020-07-02, 135👍, 1💬

💬 2020-07-02 Mangala: Important information

Installing JDK 1.8 on Windows System
This chapter provides tutorial notes on installing JDK (Java Development Kit) on Windows systems. Topics include downloading and installing Java SE Development Kit 8u45; compiling and executing Java programs; setting up JAVA_HOME environment variable.
2020-07-02, 2140👍, 4💬

💬 2017-01-23 aaa: ok

💬 2015-12-29 raghu: thanks

Visiting a "https" Web Site with Chrome
This section describes how Google Chrome 24 shows a lock icon when you visit an 'https' Web site to provide you more security related information.
2020-07-02, 363👍, 2💬

💬 2020-07-02 Koshal Pravin jangale: Nice

"sc.exe query type= service" - All Application Program Services
This section provides a tutorial example on how to list all application program services with 'sc.exe' Service Controller command tool.
2020-07-01, 202👍, 1💬

💬 2020-07-01 Richard Djeniko: you are wonderful with information, but i have not solve my problem of green color to enable local host to run fully. in wamp st...

HTTP Request and Response Raw Data
This section provides a tutorial example on how to view HTTP request and response raw data which includes HTTP header lines.
2020-06-28, 311👍, 1💬

💬 2020-06-28 Rozak: Hello

Performance of Inserting Rows with a ResultSet
This section describes how to measure the performance of inserting rows using a ResultSet object.
2020-06-28, 138👍, 1💬

💬 2020-06-28 manohar: same problem came to me

Reciprocity of Time Dilation
This section introduces the reciprocity of time dilation. Elapsed time of a moving clock is slower when measured by a stationary observer; and elapsed time of a stationary clock is slower when measured by a moving observer.
2020-06-26, 1132👍, 3💬

💬 2020-06-26 Don Pedro: Time dilation as an observer in special relativity...

💬 2017-12-09 Herong: Hanan, this is just a thought experiment. Actually, Amy and Bob will never be able to measure the other's clock.

💬 2017-12-05 Hanan Abid: And who is right Amy or Bob?? If they could see each other's clock. One clock would definitely be ahead of other or not its just...

Java Swing Tutorials - Herong's Tutorial Examples
This free Java Swing tutorial book is a collection of notes and sample codes written by the author while he was learning Java Swing himself. It can be used as a tutorial guide for beginners or a reference book for experienced developers. Topics include AWT, button, Chinese, component, event, frame, ...
2020-06-23, 7000👍, 7💬

💬 2020-06-23 Syahfiqah: done

💬 2020-06-23 Nurul ammar hani: Done

💬 2020-06-23 shahmir: done

💬 2020-06-23 Raizul Razali: Can gain more knowledge from this. So meaningful.

💬 2020-06-23 Zachary: Done

(More comments ...)

SwingHello.java - My First Swing Program
This section provides a tutorial example on how to a simple Java Swing program. SwingHello.java is my first Swing program that displays a blank window with 'Hello world!' in the window title bar.
2020-06-23, 15565👍, 6💬

💬 2020-06-23 Najwa Khairina: Very helpful..thank you so much

💬 2020-01-21 samso: Thanks for this wonderful blog that you have designed in this page. Very informative and effective article. Ver inspired article...

💬 2017-09-05 jack: good

💬 2016-01-27 Herong: Neha, you can just put the following line into your batch file and run it: java -cp . SwingHello

💬 2016-01-26 neha: how to run above program through windows batch files

About This Book: EC Cryptography Tutorials
This section provides some detailed information about this book - EC Cryptography Tutorials - Herong's Tutorial Examples.
2020-06-23, 148👍, 1💬

💬 2020-06-23 chris: Thank so much ! All Crypto printed books in cart !! Very well done. Most useful books i've seen in quite some time.

SwingWorker - The Background Task Worker
This chapter provides tutorial notes and example codes on the java.swing.SwingWorker class. Topics include quick introduction of java.swing.SwingWorker; Example programs for catching final result, publishing intermediate values, updating progress property value, and connecting to JProgressBar compon...
2020-06-23, 168👍, 1💬

💬 2020-06-23 Husna hanis: Done :)

EC Cryptography Tutorials - Herong's Tutorial Examples
This EC (Elliptic Curve) cryptography tutorial book is a collection of notes and sample codes written by the author while he was learning cryptography technologies himself. Topics include rule of chord and point addition on elliptic curves; Abelian groups with additive and multiplicative notations; ...
2020-06-23, 1680👍, 4💬

💬 2020-06-23 Herong: Chris, contact me by email. I will send you a PDF copy. Thanks for your comment.

💬 2020-06-22 chris: Sorry for fuss. Bought this ebook on google. bad idea. Should have not done that and just got the physical book or maybe ebook o...

💬 2019-07-02 Eleftheria Drosopoulou: Hello Herong, Nice blog! I am editor at Java Code Geeks (www.javacodegeeks.com). We have the JCG program (see www.javacodegeeks....

💬 2019-01-01 Yale: Thank you!

What Is "line-height" Attribute?
This section describes 'line-height' attribute for 'inline' formatting object. It is used to control the line height of the output inline area.
2020-06-22, 327👍, 1💬

💬 2020-06-22 Susy: thanks so much for the info!

Examples of Expressions
This section provides a tutorial example showing you different types of expressions.
2020-06-20, 132👍, 2💬

💬 2020-06-20 Herong: Ekko, Thanks for the interesting example. So the statement, "Operations of the same precedence value must be evaluated from left...

💬 2020-06-17 Ekko: There is another special precedence: Dim b, c, d b = c = d will be interpreted like b = (c = d)

JIMAGE - Java Image File Format
This section describes the Java image, JIMAGE, a special file format used to store class and resource files of multiple Java modules to support custom JRE.
2020-06-17, 130👍, 1💬

embedSWF() Function and Arguments
This section describes the embedWF() function provided in SWFObject 2 and its 5 required arguments and 5 optional arguments.
2020-06-15, 110👍, 1💬

"jshell> /edit" - Editing Code Snippet
This section provides a tutorial example on how to start the editor to enter and change a long code snippet in 'jshell'.
2020-06-11, 197👍, 2💬

💬 2020-06-11 Herong: Tarun, what platform are you using?

💬 2020-06-11 Tarun Teja: unable to edit my snippet

Retrieving CLOB Values with getString() Method
This section describes how to retrieve CLOB values with the ResultSet.getString() method.
2020-06-11, 349👍, 2💬

💬 2020-06-11 Herong: Connor, thanks for sharing your comment and the link. I will review and update accordingly.

💬 2020-06-10 Connor: This won't always work. If the Clob value is too large then the jdbc driver will truncate the value when using getString(). You ...

Winsock 2 SPI and LSP Layers
This section describes the Winsock 2 SPI (Service Provider Interface) architecture and LSP (Layered Service Provider) layers.
2020-06-10, 107👍, 1💬

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.
2020-06-08, 3190👍, 4💬

💬 2020-06-08 Herong: Onur, If the error is cause by IE auto-updating root certificate, you can download and install the missing root certificate manu...

💬 2020-06-01 Onur: Hi there, Since last a few weeks, although I have XP SP3 and the most recent crypt32.dll versioned 5.131.2600.6459, I get numero...

💬 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...

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