Ubuntu – JDK 8 install in ubuntu

java

I'm tring to install jdk 8 for weeks, but it fails.Following are some outputs,

sudo update-alternatives –config java

There is only one alternative in link group java (providing /usr/bin/java): /opt/java-oracle/jdk1.8.0/bin/java
Nothing to configure.

which java

   /usr/bin/java

java

 bash: /usr/local/java/jdk1.7.0_51/bin/java: No such file or directory

ls -l /usr/bin/java

 /usr/bin/java -> /etc/alternatives/java

ls -l /etc/alternatives/java

/etc/alternatives/java -> /opt/java-oracle/jdk1.8.0/bin/java

sudo update-alternatives –config javac

/opt/java-oracle/jdk1.8.0/bin/javac 1 manual mode

javac

  Error: could not find libjava.so
  Error: Could not find Java SE Runtime Environment.

If you can please give me a help to slove this problem.
Thank You

Best Answer

I installed the jdk just fine. Here's what I did.

  1. Get the .rpm file from Oracle's website.

  2. Open up a terminal and type this command:sudo apt-get install alien

  3. Wait for alien to install.

  4. Type: sudo alien -i -c <path to the file>

  5. Wait for that to finish installing. It will look like it's not doing anything for a while, but it is.

  6. Test the installation with: java -version

  7. You're done!