Java Overview - Java

What is Overview of Java?

Java programming language became originally developed by sun Microsystems which was initiated by James Gosling and released in 1995 as a core component of sun Microsystems' Java platform (Java 1.0 [J2SE]).

The latest release of the Java standard version is Java SE 8. With the development of Java and its full-size reputation, multiple configurations had been built to suit various types of platforms. For instance: J2EE for company programs, J2ME for cell programs.

The new J2 versions were renamed as Java SE, Java EE, and Java ME respectively. Java is guaranteed to be writing as soon as, Run anywhere.

Java is −

Object oriented − In Java, the entirety is an object. Java may be effortlessly extended considering the fact that it is based totally on the item version.

  • Platform independent − in contrast to many different programming languages including C and C++, while Java is compiled, it isn't compiled into platform specific machine, alternatively into platform unbiased byte code. This byte code is sent over the net and interpreted by way of the digital system (JVM) on whichever platform it's miles being run on.
  • Simple − Java is designed to be easy to learn. in case you recognize the fundamental concept of OOP Java, it would be easy to master.
  • Secure − With Java's secure feature it allows increasing virus-free, tamper-free systems. Authentication strategies are primarily based on public-key encryption.
  • Architecture-neutral − Java compiler generates an architecture-neutral item file format, which makes the compiled code executable on many processors, with the presence of Java runtime machine.
  • Portable − Being architecture-neutral and having no implementation established factors of the specification makes Java portable. The compiler in Java is written in ANSI C with a clean portability boundary, which is a POSIX subset.
  • Robust − Java makes an effort to eliminate error-prone situations with the aid of emphasizing especially on bringing together time mistakes checking and runtime checking.
  • Multithreaded −With Java's multithreaded feature it is possible to write applications that may perform many tasks concurrently. This design feature permits the developers to construct interactive packages that could run easily.
  • Interpreted −Java bytecode is translated on the fly to native machine instructions and isn't always saved anywhere. The development method is more rapid and analytical since the linking is an incremental and light-weight system.
  • High-performance −With using just-In-Time compilers, Java enables excessive performance.
  • distributed −Java is designed for the distributed environment of the internet.
  • Dynamic −Java is considered to be extra dynamic than C or C++ since it is designed to adapt to an evolving environment. Java programs can bring an extensive quantity of run-time records that may be used to verify and solve accesses to objects on run-time.

History of Java

James Gosling initiated Java language project in June 1991 for use in one of his many set-top box projects. The language, to begin with, known as ‘Oak’ after an o.k. tree that stood outside Gosling's office, also went by means of the name ‘green’ and ended up later being renamed as Java, from a listing of random phrases.

Sun released the first public implementation as Java 1.0 in 1995. It promised to Write once, Run anywhere (WORA), providing no-cost run-times on popular platforms.

On 13 November 2006, sun launched much of Java as loose and open source software program beneath the terms of the GNU standard Public License (GPL).

On 8 may additionally, 2007, sun completed the system, making all of Java's core code free and open-source, apart from a small part of the code to which sun did now not keep the copyright.

Tools you will need

For performing the examples discussed in this academic, you will need a Pentium 200-MHz computer with at the least 64 MB of RAM (128 MB of RAM recommended).

You’ll also want the following software −

  • Linux 7.1 or home windows xp/7/8 operating system
  • Java JDK 8
  • Microsoft Notepad or some other textual content editor

This educational will offer the vital skills to create GUI, networking, and web applications using Java.

What is Next?

The following chapter will guide you to how you can obtain Java and its documentation. Finally, it instructs you on how to install Java and prepare an environment to develop Java applications.

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