Introduction to Java
Java may be a programming language created by James goose from Sun Microsystems (Sun) in 1991. The target of Java is to write down a program once then run this program on multiple operating systems. the primary in the public obtainable version of Java (Java one.0) was free in 1995. Sun Microsystems was noninheritable by the Oracle Corporation in 2010. Oracle has currently the seamanship for Java. In 2006 Sun began to create Java obtainable underneath the wildebeest General Public License (GPL). Oracle continues this project referred to as OpenJDK.
Over time new increased versions of Java are free. the present version of Java is Java one.8 which is additionally called Java eight.
Java is outlined by a specification and consists of a programming language, a compiler, core libraries, and a runtime (Java virtual machine) The Java runtime permits package developers to write down program code in alternative languages than the Java programming language that still runs on the Java virtual machine. The Java platform is typically related to the Java virtual machine and therefore the Java core libraries.
The Java language was designed with the subsequent properties:
Platform independent: Java programs use the Java virtual machine as abstraction and don't access the OS directly. This makes Java programs extremely moveable. A Java program (which is standard-compliant and follows bound rules) will run unrestricted on all supported platforms, e.g., Windows or UNIX operating system.
Object-orientated programming language: Except for the primitive knowledge sorts, all parts in Java square measure objects.
Strongly-typed programming language: Java is strongly-typed, e.g., the kinds of the used variables should be pre-defined and conversion to alternative objects is comparatively strict, e.g., should be exhausted in most cases by the coder.
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