Freelancer Acquires vWorker in 2012. vWorker is an online portal and virtual employment agency that enables companies to outsource projects and independent contractors to find work. Together with Elance, Freelancer, Guru, and oDesk it is one of the largest global freelance marketplaces of its kind.
Java is a general-purpose, concurrent, class-based, object-oriented computer programming language that is specifically designed to have as few implementation dependencies as possible. It is intended to let application developers "write once, run anywhere" (WORA), meaning that code that runs on one platform does not need to be recompiled to run on another.
An open source license is a copyright license for computer software that allows the source code to be freely, that is by anyone for any purpose, used, modified and shared. This allows end users to review and modify the source code for their own customization, curiosity or troubleshooting needs.