well, Java was introduced by Sun Microsystems in 1995 and instantly created a new sense of the interactive possibilities of the Web. Both of the major Web browsers include a Java virtual machine. Almost all major operating system developers (IBM, Microsoft, and others) have added Java compilers as part of their product offerings.

The Java virtual machine includes an optional just-in-time compiler that dynamically compiles bytecode into executable code as an alternative to interpreting one bytecode instruction at a time. In many cases, the dynamic JIT compilation is faster than the virtual machine interpretation.

Java covers different version from different framework.
Java version start from

1 JDK 1.0 (January 23, 1996) (Unsupported)
2 JDK 1.1 (February 19, 1997) (Unsupported)
3 J2SE 1.2 (December 8, 1998) (Unsupported)
4 J2SE 1.3 (May 8, 2000) (Unsupported)
5 J2SE 1.4 (February 6, 2002) (EOL)
6 J2SE 5.0 (September 30, 2004) (EOL)
7 Java SE 6 (December 11, 2006) (Supported)
7.1 Java SE 6 Update 10

J2me covers api for mobile technology.

J2EE covers framework to develop secure webpages using framework sturts,turbine, springs and so on.

Answered by Nidhi Singh , an ibibo Master, at 11:29 AM on August 25, 2008

Java covers different version from different framework.
Java version start from

1 JDK 1.0 (January 23, 1996) (Unsupported)
2 JDK 1.1 (February 19, 1997) (Unsupported)
3 J2SE 1.2 (December 8, 1998) (Unsupported)
4 J2SE 1.3 (May 8, 2000) (Unsupported)
5 J2SE 1.4 (February 6, 2002) (EOL)
6 J2SE 5.0 (September 30, 2004) (EOL)
7 Java SE 6 (December 11, 2006) (Supported)
7.1 Java SE 6 Update 10

Answered by Ashish Yadav , an ibibo Wizard, at 1:02 PM on August 20, 2008

ava covers different version from different framework.
Java version start from

1 JDK 1.0 (January 23, 1996) (Unsupported)
2 JDK 1.1 (February 19, 1997) (Unsupported)
3 J2SE 1.2 (December 8, 1998) (Unsupported)
4 J2SE 1.3 (May 8, 2000) (Unsupported)
5 J2SE 1.4 (February 6, 2002) (EOL)
6 J2SE 5.0 (September 30, 2004) (EOL)
7 Java SE 6 (December 11, 2006) (Supported)
7.1 Java SE 6 Update 10

Answered by Shobhit , an ibibo Master, at 1:08 PM on August 18, 2008

Java covers different version from different framework.
Java version start from

1 JDK 1.0 (January 23, 1996) (Unsupported)
2 JDK 1.1 (February 19, 1997) (Unsupported)
3 J2SE 1.2 (December 8, 1998) (Unsupported)
4 J2SE 1.3 (May 8, 2000) (Unsupported)
5 J2SE 1.4 (February 6, 2002) (EOL)
6 J2SE 5.0 (September 30, 2004) (EOL)
7 Java SE 6 (December 11, 2006) (Supported)
7.1 Java SE 6 Update 10

Answered by Reeta K , an ibibo Master, at 4:37 PM on August 05, 2008

Sequently release of java is identify by version.

Since its introduction, Sun has released a new version of the Java language every two years or so. These new versions brought enhancements, new capabilities and fixes to bugs. Until recently, the versions were numbered 1.x, where x reached up till 4.

Answered by Nagendra , an ibibo Master, at 5:42 AM on August 04, 2008

well aswini Since its introduction, Sun has released a new version of the Java language every two years or so. These new versions brought enhancements, new capabilities and fixes to bugs. Until recently, the versions were numbered 1.x, where x reached up till 4. (Intermediate revisions were labeled with a third number - 1.x.y - as in 1.4.2.) The newest version, however, is called Java 5.0 rather than Java 1.5.

Below is a timeline of the different versions of the basic, or Standard Edition (SE), of Java along with some of the new features that each one introduced. This edition contains the core language packages (the name for code libraries in Java) and is aimed for desktop programming.


1995: Version 1.0 of the Java Development Kit (JDK) was released for free by Sun.

8 packages with 212 classes
Netscape 2.0-4.0 included Java 1.0.
Microsoft and other companies licensed Java.


1997: Version 1.1:
23 packages - 504 classes
Improvements include better event handling, inner classes, improved JVM.
Microsoft developed its own 1.1. compatible Java Virtual Machine for the Internet Explorer.
Many browsers in use are still compatible only with 1.1.
Swing packages of greatly improved graphics became available during this time but not included with the core language.


1999: Version 1.2, also called the Java 2 Platform
59 packages - 1520 classes
Code and tools distributed as The Software Development Kit (SDK)
Java Foundation Classes (JFC), based on Swing, for improved graphics and user interfaces, now included with the core language.
Collections API included support for various lists, sets, and hash maps.


2000: Version 1.3:
76 packages - 1842 classes
Performance enhancements including the Hotspot virtual machine.


2002: Version 1.4:
135 packages - 2991 classes
Improved IO, XML support, etc.


2004: Version 5.0 (previously numbered 1.5):
165 packages, over 3000 classes
Faster startup and smaller memory footprint
Metadata
Formatted output
Generics
Improved multithreading features
for more inf check http://www.particle.kth.se/~lindsey /JavaCourse/Book/Part1/Java/Chapter 01/versions.html

Answered by raj u , an ibibo Master, at 12:09 PM on August 01, 2008

Java covers different version from different framework.
Java version start from

1 JDK 1.0 (January 23, 1996) (Unsupported)
2 JDK 1.1 (February 19, 1997) (Unsupported)
3 J2SE 1.2 (December 8, 1998) (Unsupported)
4 J2SE 1.3 (May 8, 2000) (Unsupported)
5 J2SE 1.4 (February 6, 2002) (EOL)
6 J2SE 5.0 (September 30, 2004) (EOL)
7 Java SE 6 (December 11, 2006) (Supported)
7.1 Java SE 6 Update 10

Answered by Om Prakash , an ibibo Master, at 6:23 PM on July 31, 2008

Java is an object-oriented language similar to C++, but simplified to eliminate language features that cause common programming errors. Java source code files (files with a .java extension) are compiled into a format called bytecode (files with a .class extension), which can then be executed by a Java interpreter. Compiled Java code can run on most computers because Java interpreters and runtime environments, known as Java Virtual Machines (VMs), exist for most operating systems, including UNIX, the Macintosh OS, and Windows. Bytecode can also be converted directly into machine language instructions by a just-in-time compiler (JIT).

Java was introduced by Sun Microsystems in 1995 and instantly created a new sense of the interactive possibilities of the Web. Both of the major Web browsers include a Java virtual machine. Almost all major operating system developers (IBM, Microsoft, and others) have added Java compilers as part of their product offerings.

The Java virtual machine includes an optional just-in-time compiler that dynamically compiles bytecode into executable code as an alternative to interpreting one bytecode instruction at a time. In many cases, the dynamic JIT compilation is faster than the virtual machine interpretation.

Java covers different version from different framework.
Java version start from

1 JDK 1.0 (January 23, 1996) (Unsupported)
2 JDK 1.1 (February 19, 1997) (Unsupported)
3 J2SE 1.2 (December 8, 1998) (Unsupported)
4 J2SE 1.3 (May 8, 2000) (Unsupported)
5 J2SE 1.4 (February 6, 2002) (EOL)
6 J2SE 5.0 (September 30, 2004) (EOL)
7 Java SE 6 (December 11, 2006) (Supported)
7.1 Java SE 6 Update 10

J2me covers api for mobile technology.

J2EE covers framework to develop secure webpages using framework sturts,turbine, springs and so on.

Answered by Madhurima , an ibibo Master, at 5:45 PM on July 31, 2008

RECENT JAVA VERSIONS
Version 1.6.x.

* As of July 2008, the latest version of Java is 1.6.0_07
* As of May 2008, the latest version of Java is 1.6.0_06
* As of March 2008, the latest version of Java is 1.6.0_05
* In January 2008, version 1.6.0_04 was half-released (blame Sun, not me).
Version 1.6 update 4 shows up at java.sun.com/javase/downloads/
but update 3 shows up at java.com/en/download/windows_m anual.jsp.
See Massive Java Update Includes Security Fixes and
Sun's Java sloppiness for more.
* As of October 2007, the latest version of Java from Sun was 1.6.0_03
* As of June 2007, the latest version of Java from Sun was 1.6.0_2.
* As of March 2007 the latest version of Java from Sun was 1.6.0_1.
* As of December 2006 the first version of Java 1.6 from Sun was 1.6.0.0.

Version 1.5.x

* As of March 2008 the latest version of Java 1.5.x from Sun is 1.5.0_15
(last verified May 7, 2008)
* As of November 2007 the latest version of Java 1.5.x from Sun was 1.5.0_14
* As of October 2007 the latest version of Java from Sun was 1.5.0_13
* As of June 2007 the latest version of Java from Sun was 1.5.0_12
* As of February 2007 the latest version of Java from Sun was 1.5.0_11.
* As of December 2006 the latest version of Java from Sun was 1.5.0_10.
* As of October 2006 the latest version of Java from Sun was 1.5.0_09.
* As of August 2006 the latest version of Java from Sun was 1.5.0_08.
* As of December 2005 the latest version of Java from Sun was 1.5.0_06.
* As of October 2005 the latest version of Java from Sun was 1.5.0_05.
* As of July 2005, the latest version from Sun was 1_5_0_04.
* As of February 2005 the latest version from Sun was 1_5_0_01.

SECURE JAVA VERSIONS
Apple Mac users are often stuck with buggy versions of Java. For whatever reason, Java on the Mac comes from Apple. Java on Windows, Linux and Solaris comes from Sun. Apple is always behind the curve, that is, they are late in releasing the latest versions of Java for the Mac OSX.
Microsoft JVM: If your browser is using a JVM from Microsoft, you should replace it with a newer one from Sun. To un-install the Microsoft JVM see the installing page. There is a patch for bugs discovered back in 2005 in the Microsoft JVM (Microsoft Security Advisory (903144) and Secunia Advisory SA15891) but un-installing it is best.

Since, for all practical purposes Sun Microsystems owns Java, you'd think they would tell you the latest version. But, like any large organization it seems as if the left hand does not know what the right hand is doing. They have multiple Java Testers and neither has reliably reported the latest version (for more see the Other Testers page). This dedicated Java download page has also been offering old versions (in October 2006, it was three releases back, though in March 2007 it was current). Then again according to this posting at Ed Foster's GripeLog: Sun Never Sets on Java Security Updates, the situation is even worse with Sun withdrawing new versions for being buggy all the time.

The most reliable page from Sun for downloading the latest version of Java is java.sun.com/javase/downloads/ index.jsp. The intended audience for this page however is computer nerds, so don't expect to understand most of it. Look for the "Java Runtime Environment (JRE)" download.

Answered by jaivir , an ibibo Master, at 5:32 PM on July 31, 2008

1 JDK 1.0 (January 23, 1996) (Unsupported)
2 JDK 1.1 (February 19, 1997) (Unsupported)
3 J2SE 1.2 (December 8, 1998) (Unsupported)
4 J2SE 1.3 (May 8, 2000) (Unsupported)
5 J2SE 1.4 (February 6, 2002) (EOL)
6 J2SE 5.0 (September 30, 2004) (EOL)
7 Java SE 6 (December 11, 2006) (Supported)
7.1 Java SE 6 Update 10
8 Java SE 7

Answered by msg4hk , an ibibo Master, at 5:09 PM on July 31, 2008