Download Java :

Java Introduction

Below are all the links to download java software for your machine and few issues/frequently asked questions during java download/installation are also listed below. Java is most widely used language which provides features of portability and security. Every one needs to download Java for his personal system or laptop some time or other.

What to Download? JRE vs. JDK

JDK i.e. Java Development Kit is basically used to develop java based programs. So if you want to create java programs and compile and execute them then you need to download JDK.

Where as JRE Java Runtime Environment is required java software to execute java based application. JRE is an implementation of JVM (java virtual machine).

Each JDK contain JRE with it. All JDKs contains one (or more) JRE’s along with the various development tools like the Java compiler, bundling and deployment tools, debugger, libraries, etc.

So if you are not doing java development as java coder you just need to download JRE for your system to work java application properly.

Systems on which java application runs require JRE which is basically a JVM to work those java applications properly.

JRE = JVM + Java Packages Classes(like util, math, lang, awt,swing etc)+runtime libraries.(For common people)

JDK = JREs +Java compiler + bundling + deployment tools+ debuggers + libraries (For Java Developers)

All Java download link

Java version to download for Solaris, windows and Linux

http://www.java.com/en/download/manual.jsp

Java for windows Version 6 Update 17 (file size: ~ 10 MB)

URL: http://java.com/en/download/inc/windows_upgrade_xpi.jsp

Java is available for

Windows 7, Vista, XP, 2000, 2003 and 2008 Server

Requirement for this JAVA version

1. Intel and 100% compatible processors are supported.

2. A Pentium 166MHz or faster processor with at least 64MB of physical RAM is recommended.

3. A minimum of 98MB of free disk space.

Java downloads archive for old java version downloads.

Below is the place where you can get old java versions for your machine for free download.

http://java.sun.com/products/archive/