Java is very well known
and famous programming utilized by
software developers today. To develop Android apps and for back end web
development , Java is the base language. One who is new to programming and wants
to buil their career in this field then Java is good option to start.
What is JAVA source code?
Java source code files (files with a .java extension) are assembled into a format called bytecode Bytecodes are the files with a .class extension. And this can be which can then be accomplished by a Java interpreter. Compiled Java code can run on most computers because Java interpreters and runtime environments, known as Java Virtual Machines (VMs), remian for most operating systems, including UNIX, the Macintosh OS, and Windows. JIT is used to convert the bytecode directly into machine language instructions .
Java on the Web
Java has got a lot more number of
characteristics which makes its use worldwide . Java applets are the small Java applications and they can be downloaded from a Web server and run on your computer by a Java-compatible Web browser.
Unless Java is installed on user’s device, the applications and websites which use Java will not run . To run in a web browser , the software needs JRE when you download Java. Java plug in software permits the Java applets to run in browsers It is a component of the JRE.
Java is developed by Sun Microsystems. It is a kind of scripting language developed by Netscape to able the Web authors to create
interactive sites. Development of Java
language was executed on its own, not dependent on anything and shares
charactersitics of entire Java. Javascript can interact with HTML source code, enabling Web
authors to spice up their sites with dynamic content. Use of Java
is open as the user need not to purchase a license for using Java. It is
endorsed by a number of Software companies.
What is an applet?
An applet is a minute program
based on the Internet and is written in Java . The applet has the capability to run on
HTML. The applet is usually embedded in an HTML page on a Web site and can be accomplished
from within a browser.
Java IDL adds Common Object Request Broker Architecture ability to the Java platform, providing standards-based
interoperability and connectivity. Java IDL allows distributed Web-enabled Java
applications to transparently invoke operations on remote network services using the
industry standard Object Management Group Interface Definition Language and ORB
Protocol.
JVM is short for Java Virtual Machine. JVM is an abstract
computing machine, or virtual machine. It is a
platform-independent execution environment that converts Java bytecode into machine
language and executes it. Most programming
languages compile source code directly into machine code . Machine code is
prepared to run on a predefined microprocessor architecture or operating system, such as Windows or UNIX.