What does Foobar mean?

Foobar is a slang term used in the IT world as a placeholder to refer to generic examples or temporary files or programs that are to be deleted. The technical term for a word like foobar is a metasyntactic variable*. These types of terms are used to name variables, programs or other parts of code [1].

It cames from the use of foo in a programming context is generally credited to the Tech Model Railroad Club (TMRC) of MIT.

For instance, a computer science professor may be discussing different file formats. In this case, he would call the generic-example file foo or foobar, then list the extensions associated with the file formats (e.g. foobar.txt, foobar.gif, foobar.exe, foobar.tar).
When foo or foobar is used, everyone understands that these are just examples, and they don't really exist [2].

*A metasyntactic variable is a placeholder name used in computer science, a word without meaning intended to be substituted by some objects pertaining to the context where it is used. Example, the word foo. Read more

References:

Comments

Retrieve Data from Database and Compare it with user input using Java

In this Lesson we will create a form page " form.jsp " that takes the user email. After that we will check the user existence in our DB. If the user email stored in the DB, a welcoming page will be opened to him/her. If the user is a new user then a message will be displayed that tells him/her this email is not stored in our DB. Note: I use access 2013 database and Eclipse Juno Basic step, Create a new project: Open Eclipse then click on File > New > Other > Web > Dynamic Web Project. First, Load the DB class: In this step we will connect with database so we will gather all its code in a java class named " DBConnection.java " under a package called " code ". Expand your project then right click on java resources > New > Package . After-that Give a name for your package ex, code Right click on your created new package that called code > New > Class. After-that Give a name for your Class ex, DBConnection.

An attempt was made to insert a node where it is not permitted

Do you face this Error while you are writing code to generate xml file from java? Exception in thread "main" org.w3c.dom.DOMException : HIERARCHY_REQUEST_ERR: An attempt was made to insert a node where it is not permitted. at com.sun.org.apache.xerces.internal.dom.CoreDocumentImpl.insertBefore(Unknown Source) at com.sun.org.apache.xerces.internal.dom.NodeImpl.appendChild(Unknown Source) at generatexml.WriteXMLFile.main( WriteXMLFile.java:30 ) Well the answer is: Don't insert the node where it isn't permitted. Change your generated directory file path from 'C' to other directory ex, D or to any directory you have. Make sure the ‘appendChild’ is referring to the right element. Don’t appending twice, only make it once. Ex, //Writetoxml.java Element rootElement = doc . createElement ( " Company " ); doc . appendChild ( rootElement ); Element subElement = doc . cre

Do you want to know about your computer in one window screen?

System Toolbox (Sys Toolbox) If you want to know information about your computer from processor, drivers, motherboard, memory, operating system,...and more, you can depend on this software. Sys Toolbox (see screen shoot from the software) provides a software and hardware information for windows operating system. It is a simple software that you can use it to know about your PC. To run the software, you need to: Extract the zipped software. After that, right click on the software icon and choose "Run as administrator". Finally, you will find a pop up screen telling you information about you PC. To go to the software site: http://sys-toolbox-pro.soft112.com/ To Download the software: Download

Technology

Search This Blog