Java technology is both a
programming language and a platform.
The Java Programming Language
The Java programming
language is a high-level language that can be characterized by all of the
following buzzwords:
§
Simple
§
Architecture
neutral
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Object
oriented
§
Portable
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Distributed
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High
performance
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Interpreted
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Multithreaded
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Robust
§
Dynamic
§
Secure
With most programming
languages, you either compile or interpret a program so that you can run it on
your computer. The Java programming language is unusual in that a program is
both compiled and interpreted. With the compiler, first you translate a program
into an intermediate language called Java
byte codes —the platform-independent codes interpreted by the
interpreter on the Java platform. The interpreter parses and runs each Java
byte code instruction on the computer. Compilation happens just once;
interpretation occurs each time the program is executed.
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