[Solved]install java on debian

[dannyhmui]

This is what I have done:

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sudo apt-get purge openjdk-\*

then downloaded the lastest java jdk1.8.0_131

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danny@DannyHome:~/Downloads$ ls
jdk-8u131-linux-x64.tar.gz

then did

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sudo mv jdk1.8.0_131/ /usr/lib/jvm/
sudo chown -R root:root /usr/lib/jvm/jdk1.8.0_131
danny@DannyHome:/usr/lib/jvm$ ls -all
total 28
drwxr-xr-x   3 root root  4096 Jun 22 21:12 .
drwxr-xr-x 167 root root 20480 Jun 17 20:13 ..
drwxr-xr-x   8 root root  4096 Mar 15 21:35 jdk1.8.0_131
danny@DannyHome:/usr/lib/jvm$ 

then I have added the following to end of line of /etc/profile
JAVA_HOME=/usr/lib/jvm/jdk1.8.0_131
PATH=$PATH:$HOME/bin:$JAVA_HOME/bin
export JAVA_HOME
export PATH

however, when I try to run java -version, I got?

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danny@DannyHome:/usr/lib/jvm$ java -version
bash: java: command not found
danny@DannyHome:/usr/lib/jvm$

can you guys help? it should show me correct java version

[orythem27]

I suggest using `make-jpkg` to generate deb packages from the oracle installer. It would be easier to manage afterwards.

0. Undo the above steps;

1. Download official package from oracle website. e.g. {jre,jdk}-8u131-linux-x64.tar.gz

2. Install `java-package` and use `make-jpkg` to generate deb packages;

3. Install generated deb packages.

[dannyhmui]

what java-package to install? so just apt-get install java-package?

then

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make-jpkg jdk-8u131-linux-x64.tar.gz

?

[dannyhmui]

sorry for the trouble, resolved:

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danny@DannyHome:~$ sudo update-alternatives --config java
[sudo] password for danny: 
There is 1 choice for the alternative java (providing /usr/lib/jvm).

  Selection    Path                                Priority   Status
------------------------------------------------------------
  0            /usr/lib/jvm/jdk1.8.0_131/bin/java   1         auto mode
* 1            /usr/lib/jvm/jdk1.8.0_131/bin/java   1         manual mode

Press enter to keep the current choice[*], or type selection number: 0
update-alternatives: warning: forcing reinstallation of alternative /usr/lib/jvm/jdk1.8.0_131/bin/java because link group java is broken
update-alternatives: warning: not replacing /usr/lib/jvm with a link
danny@DannyHome:~$ java -version
java version "1.8.0_131"
Java(TM) SE Runtime Environment (build 1.8.0_131-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.131-b11, mixed mode)
danny@DannyHome:~$