Java Constructors
Constructors are special kinds of methods which have the following properties: Constructors don’t have a return type Constructors have the same name as the class Constructors are used to initialize…
Java Inheritance Example
Inheritance is a fantastic feature which simplifies development and facilitates reuse of classes. A class can inherit properties and methods from another class. The inheriting class is called the subclass…
Java Arrays
Java arrays allow use to store multiple values of the same type. Array elements are accessible by their indices. 0 is the first index. arrayname.length gives the length of the…
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…
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…
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…
PHP: How to convert XML to JSON
Converting XML to JSON is very easy in PHP. See the following code. line 1: open an empty file to write JSON line 2: load xml file line 3: convert…
Java: How to pass command line arguments
Following simple code shows how to pass command line arguments to to Java program: Running the program Output of this program Explanation All command line arguments are passed to a…