What is Java
Java is a programming language and computing platform first released by Sun Microsystems in 1995.
Java is designed to be simple, object oriented and similar to C++ while removing the unnecessary complexities of C++. It is also said to be a Robust, Architecturally Neutral, Portable, Interpreted, Threaded, Dynamic and High Performance Language.
The Java platform has attracted more than 6.5 million software developers. It's used in every major industry segment and has a presence in a wide range of devices, computers, and networks.
Java technology's versatility, efficiency, platform portability and security make it the ideal technology for network computing.
Why Java
Java is used mainly on the Internet and uses a virtual machine which has been implemented in most browsers to translate Java into a specific application on different computer system.
The Java programming language is a high-level language that can be described as
- Architecture neutral
- Object oriented
- Portable
- Distributed
- High performance
- Multithreaded
- Dynamic
- Secure
Ones the program is written in Java we can run it anywhere means that application developed through Java is platform independent. Java based enterprise applications perform well because stable Java standards help developers to create multilevel applications with a component based approach.
What Java Does
Java technology enables the development of secure, high performance and highly robust applications on multiple platforms in heterogeneous, distributed networks.
- Development Tools: The development tools provide everything you'll need for compiling, running, monitoring, debugging and documenting your applications.
- User Interface Toolkit: The Swing and Java 2D toolkit make it possible to create sophisticated Graphical User Interfaces (GUI).
- (API): The API provides the core functionality of the Java programming language. It offers a wide array of useful classes ready for use in your own applications.
- Deployment Technologies: The JDK software provides standard mechanisms such as the Java Web Start software and Java Plug-In software for deploying your applications to end users.
- Integration Libraries: Integration libraries such as the Java IDL API, JDBC API, Java Naming and Directory Interface API, Java RMI and Java Remote Method Invocation over Internet Inter-ORB Protocol Technology (Java RMI-IIOP Technology) enable database access and manipulation of remote objects.
Java Advantage
Java is an object oriented programming language and it was intended to serve as a new way to manage software complexity.
Java is nearly everywhere in Mobile Phones, Web servers and Enterprise Applications and while less common on desktop computers. Java applets are often used to provide improved functionality while browsing the World Wide Web.
Java programming enables secure and high performance software development on multiple platforms. Java is designed to make distributed computing easy with the networking capability that is inherently integrated into it.
Security
Security features — cryptography, authentication and authorization, public key infrastructure, and more — are built in. The Java security model is based on a customizable "sandbox" in which Java software programs can run safely, without potential risk to systems or users.
- The Java compiler catches more compile-time errors; other languages (like C++) will compile programs that produce unpredictable results.
- Java does not allocate direct pointers to memory. This makes it impossible to accidentally reference memory that belongs to other programs or the kernel.
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PHP is now officially known as "PHP: HyperText Preprocessor". It is a server-side scripting language usually written in an HTML context. Unlike an ordinary HTML page, a PHP script is not sent directly to a client by the server; instead, it is parsed by the PHP binary or module, which is server-side installed.
