Selenium in Liferay

1. Selenium IDE is an intergrated development environment for Selenium. It works as a FireFox extension that allows you to record and edit...

Create your own exception class in java

1.To create our own Exception class in java we need to extend our ExceptionClass to "Exception" class. 2.Create any of the con...

Heap memory in java

Java objects created in an area called the heap memory.The heap memory is created when the JVM starts up, heap memory is increased or decr...

Singleton class example program

A singleton class having a single object or Instance of a class for entire lifetime of the application. Singleton class restricts the inst...

Javascript popup boxes

1.Displaying an alert box: An alert box can be displayed using Javascript's alert() function. Syntax: alert("Text to display in...

Installation of ant and RabbitVCS in ubuntu

Installation of ant in ubuntu: Open the terminal just type the following command: sudo apt-get -u install ant How to check ant is ...

Ubuntu basics for Java developer

sudo command: In order to do administrative tasks like install, remove or upgrade applications/software in the Ubuntu machine, the logge...