The Internet is here to stay. Java is still the "write once, run anywhere platform" which scores over other languages in more ways than one. Originally called Oak and developed by Sun Microsystems, this object oriented language is portable, bug-free and has become synonymous with the Internet. Java bears striking similarities to C++, but it is more evolved and efficient. It reduces development time and cost, while offering security and scalability.
Java programs also known as Applets are available on a web page. They are small, secure and appear embedded in the page. Applets can be downloaded and executed locally on your system.
The most important aspect of Java that endears it to the Net is the flexibility of cross-platform execution of code. This is made possible through its Interpreter - The Java Virtual Machine (JVM). Java programs are first compiled into byte code format, after which they are executable on any platform through the JVM which loads, verifies, links and interprets java byte code on the fly. The JVM is a layer above the operating system. Java programs deal only with the JVM and not the operating system, and the JVM in turn converts it into a form that the operating system can understand. This is what makes Java programs platform (operating system) independent.
Java also optimises server-client interaction, thereby reducing the load on the server considerably. Other than server-side computing, Java is also used to create e-commerce and enterprise applications. It is now positioned to enter the wireless, Bluetooth and non-PC world in a way that will make it indispensable to the industry. Wireless Java has already been pioneered by Digital Mobility that is touted to have launched the world's first wireless Java service.
Java is used by web programmers and developers not only to provide animation and interactivity to a website, but also to create products and services that are available through the Net. Brick and mortar establishments, which have now upgraded themselves to click and mortar businesses, require Java programmers to develop their online business solutions, e- commerce and messaging. Java developers also form a major part of the workforce for companies, which specialise in web solutions.
Hardware and software design and requirements, and the services that will leverage business are devised, created and implemented by developers. Services that need programming may include forums, chats, discussion boards, and tools like market value meter, time calculator, currency converter and games.