As with all versions of software a increase of a "digit" means a "change" to the pervious one.
Depending on the protocol used, x.y.z X was a major change, Y was an major change of the "Z" whereas z was a minor change.
Java Enterprise Edition (Java EE).
go to sun.com It is Java's official website and they will have all versions of java for download
No, not necessarily. JDK stands for Java Development Kit and JRE stands for Java Runtime Environment. They can be of the same or different versions each. It is better if we have two compatible or same versions of JDK and JRE installed for ease of use.
Yes. Java supports Windows 8 (including previous versions Windows).
They are different versions. Java 5 is newer than Java 2. Think of it like the difference between the Playstation 1 and the Playstation 3.
newest version is needed
You only need one version of the JRE to run a Java application.
No, you can delete the old one. Java does not remove old versions when it is updated, however I think they have fixed that now.
WebSphere is a server by IBM. It has JAVA applications and is supported by Windows and Linux. There have been different versions and updates with each version.
Check the related links below to various links to get different versions of Java. For the basic user the first link will get you what you need to load web pages using Java.
Just generate the Fibonacci numbers one by one, and print each number's last digit ie number%10.
Check the related link below to find a direct link to the Java.com download page. The second link is for older versions of Java.