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Java Forum / First Aid / November 2005Query regarding the Java SDKs, SE and EE
I just uninstalled the j2sdk 1.4.2 and downloaded and installed the j2eesdk 1.4 on my machine. I just tested my programs, and they compile fine. I wanted to confirm if having only the j2eesdk on my machine, does not need jdk also to be installed. As far as I know, this seems to be the case. Either j2sdk or j2eesdk needs to be installed. J2eesdk includes the jdk with it. It seems to be fine, and eclipse works cool ( means everything should be all right, eclipse immediately asks for a jre if you dont have it installed). Just wanted to confirm. "HalcyonWild" wrote... > I just uninstalled the j2sdk 1.4.2 and downloaded and > installed the j2eesdk 1.4 on my machine. I just tested [quoted text clipped - 3 lines] > machine, does not need jdk also to be installed. As far > as I know, this seems to be the case. Well, that's not what I would call it... The "complete j2eesdk" install has the "jdk" bundled with it... J2EE as such is an "enterprise extension" to J2SE. When you develop J2EE applications it relies on the jdk, but makes use of additional libraries. So there will definitely be a "jdk-installation" on your machine, otherwise it wouldn't work to develop Java applications for you. // Bjorn A > "HalcyonWild" wrote... > [quoted text clipped - 19 lines] > > // Bjorn A Thanks Bjorn, I have the complete install of j2eeSdk, that one that is over 100 MB. It states on the java site that jdk is bundled, but it never stated explicitly, whether you need a separate j2sdk installation or not. I had never tried j2eesdk and so I was not sure. Normally, jboss/tomcat has the j2ee impl, but depends on an existing j2sdk install, for running. Also, I have seen different software carrying their own Jre, like Oracle. So, I was wondering if Sun j2eesdk complete is carrying the whole jdk or just the jre, something like oracle. I have only the j2eesdk install now. No problems so far. "HalcyonWild" wrote... >> The "complete j2eesdk" install has the "jdk" bundled with it... > So, I was wondering if Sun j2eesdk complete is carrying the > whole jdk or just the jre, something like oracle. To use your wording, the "complete j2eesdk" is "carrying the whole jdk", although there are options at Sun's donload pages to download it as separate bundles. In most cases dealing with J2EE-implementations (such as JBoss), you ususally already have a jdk installed, and never download any J2EE-libraries from Sun, but instead makes use of those distributed with the actual implementation (such as JBoss). It was a long time ago since I installed any JBoss, so I don't remember what the case was there. Occasionally, some vendors bundle a jre to make sure that it will exist on the target machine, to be able to run smoothlessly. Sometimes, it's even crucial that it's a specific version of the jre, as the implementation relies on "non-documented features" that might well have ceased to exist in following versions (I beleive some Oracle applications does this). // Bjorn A Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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