Need help in installation of JAVA & Netbeans !!

[Amedee Van Gasse]

On Thu, January 19, 2012 08:34, Navdeep Singh Sidhu wrote:
> hello
>
> Recently i reinstalled ubuntu on my laptop & when i try to install
> netbeans on it, it's installer says compatible JDK not found but i had
> installed JDK 1.7.0_02 on it & i followed these commands
>
> root at S13:/home/nika/Downloads# update-alternatives --config javac
> update-alternatives: error: no alternatives for javac.
> root at S13:/home/nika/Downloads# update-alternatives --install
> /usr/bin/javac javac /usr/lib/jvm/jdk1.7.0_02/bin/javac 1
> update-alternatives: using /usr/lib/jvm/jdk1.7.0_02/bin/javac to provide
> /usr/bin/javac (javac) in auto mode.
>
> but when i  tried javac command it gives following error
>
> root at S13:/home/nika/Downloads# javac bash: /usr/bin/javac: Permission
> denied
>
> so i remove it using
>
> root at S13:/home/nika/Downloads# update-alternatives --remove-all javac
>
>
> can i get some help?


Copy/paste the output of the following commands:

which java
which javac
sudo apt-get update
sudo apt-get install openjdk-7-jre openjdk-7-jdk
which java
which javac
sudo apt-get install netbeans


More help at:
http://openjdk.java.net/install/
https://help.ubuntu.com/community/Java
https://help.ubuntu.com/community/Netbeans