Java recursion example
Recursion is when a function calls itself repeatedly. The classical example of recursion the factorial function. To create a recursive definition of this function, we need to define a recursive…
What is XML
Extensible Markup Language (XML) is a markup language which allows users to structure, describe, and interchange data on the Internet in clearly defined way. Markup can be used to give…
Introduction to Java Programming
Java is one of the most popular and widely used programming languages in the world. Lets begin with a simple program before getting into any details: Open your IDE or…
Installing and using phpDocumentor on Ubuntu
phpDocumentor is a tool which creates complete documentation like Javadocs for PHP code. Installing phpDocumentor Install libraries. Restart Apache. Install PEAR. PEAR is a repository of php extensions: Tell PEAR…
Calling a nonstatic method from main
A static method is a class method, rather than an object method. So static methods cannot access not static methods without instantiating their objects. This code would generate the following…
What is MVC – Model View Controller
MVC, short for Model View Controller, was invented a Xerox in the 1970s. It has had profound impact on web development and GUI software development in general. Many variant implementations…
Installing VirtualBox
A virtual machine is a a software that allows users to install multiple operating systems within an operating system. For example, if you are running Mac OS, you can install…
Node.js
Node is an open source runtime environment for server-side applications. It allows you to run JavaScript on the server in addition to the browser. Almost all of the new and…
What you need to know about Data Science
A chemist studies chemical properties of objects. A biologist studies living beings. A data scientist studies data. Data is real. It has real properties. Study of data leads to information…
Linux symbolic links
A symbolic link is a link which points to another file. In Microsoft windows, this is referred to as a shortcut and in Macintosh, an alias. To create a symbolic…