Java Tutorial

Java is a general-purpose object-oriented programming language. It is originally developed by James Gosling (Sun Microsystems) of USA in 1991. Java designs to develop software for consumer electronic devices like TVs, VCRs and other electronic machines. It enables browsers on the Internet and requires a variety of support systems. This Java tutorial will help you learn Java Programming for beginners and experienced.

1. Internet Connection: Local computer should be connected to the Internet.
2. Web Server: A program that accepts requests for information and sends the required documents.
3. Web Browser: A program that provides access to www and runs Java applets.
4. HTML: A language for creating hypertext for the Web.
5. Applet Tag: For placing Java applets in HTML document.
6. Java Code: Java code uses for defining Java applets.
7. Bytecode: It compiles the Java code that refers to the Applet tag and transfers it to the user’s computer.
8. Proxy Server: An intermediate server between the requesting client workstation and the original server. It is typically implemented to ensure security.
9. Mail Server: A computer system that facilitates the exchange (sending and receiving) of electronic mail across networks.

Java Environment:

It includes a large number of development tools and hundreds of classes and methods. The development tools are part of the system that says Java Development Kit (JDK) and the classes and methods are part of the Java Standard Library (JSL). It is also known as the Application Program Interface (API).

Java Development Kit:

The Java Development Kit is a collection of tools that uses for developing and running programs. It includes:

(i) appletviewer (for viewing Java Applets)
(ii) javac (Java Compiler)
(iii) java (Java Interpreter)
(iv) javap (Java Disassembler)
(v) javah (for C header files)
(vi) javadoc (for creating HTML documents)
(vii) jdb (Java Debugger)