Tag: Java

.ear, .war, and .jar files are simply files zipped using Java jar tool. Each file is created for a different purpose: .jar files Jar (Java Archive) files contain libraries, resources…

The Internet is full of code examples on how you can create your own LinkedList class. Java provides and very easy to use class LinkedList. Following is an example on…

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…

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 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…

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…

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…

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…

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 String…

The following code would remove enclosing quotes from Java Strings With this regular expression, if Java sees an opening double quote (^\”) or | a closing double quote (\”$) then…