JDBC Tutorials - Herong's Tutorial Examples
This JDBC tutorial book is a collection of notes and sample codes written by the author while he was learning JDBC technology himself. It can be used as a tutorial guide for beginners. Topics include Java, Database, JDBC, Driver, ODBC, Connection, DataSource, SQL, ResultSet, Metadata, Derby, MySQL, ... 2020-03-07, 6797👍, 10💬
ActivityLog - Application to Create Log File
This section provides a tutorial example on how to create application, ActivityLog, to create a log file to monitor activity lifecycle using the android.content.Context.openFi leOutput()method. 2015-09-01, 283👍, 1💬
GetGeoIP - Get Country by IP Address
This chapter provides a quick introduction of the free Web service, GetGeoIP, returning the country information with a given IP address. Topics include usage description of GetGeoIP; request message sample; response message sample. 2019-01-29, 280👍, 1💬
Insertion Sort Algorithm and Implementation
This chapter provides tutorial notes and codes on the Insertion Sort algorithm. Topics include introduction of the Insertion Sort algorithm, Java implementation and performance of the Insertion Sort algorithm. 2016-03-30, 280👍, 0💬
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. 2017-05-10, 277👍, 1💬
What Is SOAP?
This section provides a quick summary of SOAP protocol. 2016-02-07, 276👍, 0💬
Input Text Data from Web Forms
This chapter provides tutorial notes on input text data from Web forms. Topics include creating Web form; receiving input text data with PHP the $_REQUEST array; input text data in ASCII, Latin1 and UTF-8 encoding; entering Latin1 characters with Alt keycodes. 2015-10-29, 276👍, 2💬
UTF-8 (Unicode Transformation Format - 8-Bit)
This chapter provides notes and tutorial examples on UTF-8 encoding. Topics including introduction of UTF-8 encoding; examples of encoded byte stream; UTF-8 encoding algorithm. 2015-08-10, 276👍, 1💬
JSP Custom Tags
This chapter provides tutorial notes and example codes on JSP custom tags. Topics include what is custom tag; steps of creating and using custom tags; first custom tag, hy:hello. 2016-07-12, 273👍, 1💬
Two Types of "import" Statements
This section describes two types of 'import' statements: Single Type Import and On-Demand Type Import. 4 sample Java source files are provided to test 'import' statements. 2020-02-06, 272👍, 2💬
RFC 1867 - Form-based File Upload in HTML
This section describes the file upload specification, 'RFC 1867 - Form-based File Upload in HTML', proposed by E. Nebel and L. Masinter in 1995. 2019-08-09, 266👍, 2💬
JSP Tutorials - Herong's Tutorial Examples
This free book is a collection of notes and sample codes written by the author while he was learning JSP. Topics include attachment, content-disposition, cookie, custom tag, debugging, expression language, file upload, header lines, HTTP, JavaBeen, JavaSever Page, JSP, JSTL, JSTL-EL, localization, M... 2015-07-21, 266👍, 0💬
Storing FORTRAN Program Code on Punch Cards
This section provides a quick introduction of syntax rules of early versions of FORTRAN language related to punch cards used to store FORTRAN program codes. 2020-03-07, 263👍, 3💬
XSD Tutorials - Herong's Tutorial Examples
This free book is a collection of tutorial examples and notes written by the author while he was learning XSD (XML Schema Definition). Topics include XSD, XML, Schema, simpleType, complexType, simpleContent, complexContent, dataTime, dateTimeStamp, gYear, gMonth, gDay, duration, yearMonthDuration, d... 2015-07-21, 262👍, 0💬
The Constancy of the Speed of Light
This section provides a thought experiment to help understanding the second assumption of the special theory of relativity: The constancy of the speed of light. 2020-03-19, 261👍, 4💬
Outdated: IE 8 Displaying Certificate Error Page
This section provides a tutorial example showing that IE 8 fails to validate an HTTPS server certificate and displays a certificate error page. 2018-10-06, 254👍, 2💬
中國年歷 - 2017 年年歷 - 雞年
This section describes what is PKCS5Padding - a schema to pad cleartext to be multiples of 8-byte bl...
This section describes the MD5 algorithm - a 5-step process of padding of '1000...', appending messa...
This section provides a tutorial example on how to use the 'keytool -export' command to export certi...
This section provides a tutorial example on how to turn on Windows Defender for real-time protection...