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checking eclipse version

nirjari patel
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Joined: Apr 23, 2009
Posts: 386
I checked the version of eclipse in "About eclipse" link under help tab and it says "Eclipse IDE for Java EE developers"
So is this version 3 or earlier version ? In java 1.2 means Java2 and 1.4 means java 4.
When I check the details of this IDE, eclipse platform version is 3.6.0.I20100608-0911 and Java EE IDE is

1) Does this mean that ecliplse version we are using is 3.6 and Java EE version is 1.3 ? Does eclipse come with java preinstalled or does it require to have Java installed on computer ? If eclipse comes with Java, does it mean that, if I dont have Java installed in my environment, still eclipse will compile and run Java source files and class files ?
2) If I have Java 6 installed on my computer, does eclipse use Java 6 or Java 3 for compilation and running of java classes created within eclipse ?
3) Does it mean that there are two versions of Java running on my computer at same time , one in eclipse and other in laptop ?
4) Can I upgrade java version in eclipse ?

Sagar Rohankar
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Joined: Feb 19, 2008
Posts: 2904

As far as my knowledge is concerned, Eclipse doesn't come up with Java bin/libs. We have to set either JAVA_HOME or explicitly specify the JRE path in Eclipse..

And yes core eclipse platform has different version than JEE IDE version.

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nirjari patel
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Joined: Apr 23, 2009
Posts: 386
Apart from core eclipse, what else is included in JEE IDE ?

When I have already set path for java executable in PATH environment variable, why do I need to set JAVA_HOME ? This variable will contain same information like one I have provided in PATH variable.

Christophe Verré

Joined: Nov 24, 2005
Posts: 14688

1) The number you are seeing is the version number of the EPP package for "Eclipse IDE for Java EE developers". It is not the Eclipse version number, it is not the JDK version number, it is not the J2EE JDK version number either. You need to install a JDK and configure Eclipse to use it. At first start, Eclipse usually looks at JAVA_HOME to set a default JDK.

2) When you create a new project, you can define which JRE to use in the project creation wizard.

3) No

4) Yes. You can install as many JDK as you want, and configure which JRE to use in the Project settings.

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