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Java is a computer programming language that is concurrent, class-based, object-oriented, and 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. Java applications are typically compiled to bytecode (class
file) that can run on any Java virtual machine (JVM) regardless of computer architecture. Java
is, as of 2014, one of the most popular programming languages in use,
particularly for client-server web applications, with a reported 9
million developers.[10][11] Java was originally developed by James
Gosling at Sun
Microsystems(which
has since merged into Oracle Corporation) and
released in 1995 as a core component of Sun Microsystems' Java platform. The language derives much of its syntax from C and C++, but
it has fewer low-level facilities
than either of them.
The original and reference implementation Java compilers,
virtual machines, and class
libraries were
developed by Sun from 1991 and first released in 1995. As of May 2007,
in compliance with the specifications of the Java Community Process, Sun
relicensed most of its Java technologies under the
GNU General Public License.
Others have also developed alternative implementations of these Sun
technologies, such as the GNU Compiler for Java(bytecode
compiler), GNU
Classpath (standard libraries), and IcedTea-Web
(browser plugin for applets). Principles There were five primary goals in the creation of the Java language
1.
It should be
"simple, object-oriented and familiar"
2.
It should be
"robust and secure"
3.
It should be
"architecture-neutral and portable"
4.
It should execute
with "high performance"
5.
It should be
"interpreted, threaded, and dynamic"
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Rona V.
Leyba [email protected] |