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I have a JRE already installed on my system, but looks that I need to install JDK. Is it possible to keep the JRE installed and install JDK also or I should to remove the JRE before.

any advice? because it should be better for me if I don't delete any old programme.

titi
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    [idownvotedbecau.se/noresearch/](http://idownvotedbecau.se/noresearch/). Please see [How much research effort is expected of Stack Overflow users?](https://meta.stackoverflow.com/questions/261592/how-much-research-effort-is-expected-of-stack-overflow-users) – Turing85 Jan 12 '18 at 10:37
  • remove jre and install jdk because jdk already has jre inside – niemar Jan 12 '18 at 10:37
  • You can install as many versions as you want, just change your path to point to the one you want – Michael Jan 12 '18 at 10:37
  • you can keep it and still install. nothing is stopping you to try – Stultuske Jan 12 '18 at 10:37

1 Answers1

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You can install JDK without uninstalling JRE. It will be ok and work fine.

BUT

You should note that JDK comes with JRE, so you no need to install it separately. Also, You can install different JDK versions (e.g. jdk1.7.0_51, jdk1.8.0_149, jdk1.8.0_151, jdk1.7.0_58) side by side and all will work fine.

cse
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