Java 11 installation problem for Ubuntu 16.04

Question

I've tried all the ways but somehow I can't install java 11. Showing my previous version of java

I did following steps:

STEP 1: I Installed : jdk-11.0.8_linux-x64_bin.deb file from Oracle website.

STEP 2: Run this command : sudo dpkg -i jdk-11.0.8_linux-x64_bin.deb

STEP 3: sudo get update

STEP 4: run this command sudo vim /etc/profile.d/jdk.sh

STEP 5: Add this line in empty folder:

export JAVA_HOME=/usr/lib/jvm/jdk-11.0.8/
export PATH=$PATH:$JAVA_HOME/bin

And save this file. Than I checked in usr/lib/jvm path with ls I get:

default-java@  java-1.8.0-openjdk-amd64@  java-8-openjdk-amd64/  jdk-11.0.8/

Than I enter this command:

source /etc/profile.d/jdk.sh

I get these output:

    set: Warning: path component /usr/lib/jvm/jdk-11.0.8/bin:/home/duygu/bin may not be valid in PATH.
set: No such file or directory
set: Did you mean 'set PATH $PATH /home/duygu/bin'?
set: Warning: path component /usr/lib/jvm/jdk-11.0.8/bin:/home/duygu/.local/bin may not be valid in PATH.
set: No such file or directory
set: Did you mean 'set PATH $PATH /home/duygu/.local/bin'?
set: Warning: path component /usr/lib/jvm/jdk-11.0.8/bin:/usr/local/sbin may not be valid in PATH.
set: No such file or directory
set: Did you mean 'set PATH $PATH /usr/local/sbin'?
set: Warning: path component /usr/lib/jvm/jdk-11.0.8/bin:/usr/local/bin may not be valid in PATH.
set: No such file or directory
set: Did you mean 'set PATH $PATH /usr/local/bin'?
set: Warning: path component /usr/lib/jvm/jdk-11.0.8/bin:/usr/sbin may not be valid in PATH.
set: No such file or directory
set: Did you mean 'set PATH $PATH /usr/sbin'?
set: Warning: path component /usr/lib/jvm/jdk-11.0.8/bin:/usr/bin may not be valid in PATH.
set: No such file or directory
set: Did you mean 'set PATH $PATH /usr/bin'?
set: Warning: path component /usr/lib/jvm/jdk-11.0.8/bin:/sbin may not be valid in PATH.
set: No such file or directory
set: Did you mean 'set PATH $PATH /sbin'?
set: Warning: path component /usr/lib/jvm/jdk-11.0.8/bin:/bin may not be valid in PATH.
set: No such file or directory
set: Did you mean 'set PATH $PATH /bin'?
set: Warning: path component /usr/lib/jvm/jdk-11.0.8/bin:/usr/games may not be valid in PATH.
set: No such file or directory
set: Did you mean 'set PATH $PATH /usr/games'?
set: Warning: path component /usr/lib/jvm/jdk-11.0.8/bin:/usr/local/games may not be valid in PATH.
set: No such file or directory
set: Did you mean 'set PATH $PATH /usr/local/games'?
set: Warning: path component /usr/lib/jvm/jdk-11.0.8/bin:/snap/bin may not be valid in PATH.
set: No such file or directory
set: Did you mean 'set PATH $PATH /snap/bin'?
set: Warning: path component /usr/lib/jvm/jdk-11.0.8/bin:/usr/local/jdk-11.0.2/bin may not be valid in PATH.
set: No such file or directory
set: Did you mean 'set PATH $PATH /usr/local/jdk-11.0.2/bin'?

When I check the java -version I get: openjdk version "1.8.0_265"

And enter this command : update-java-alternatives --list I get:

java-1.8.0-openjdk-amd64       1081       /usr/lib/jvm/java-1.8.0-openjdk-amd64

I tried sudo reboot and tried again and I didnt install java 11 . How can I install ? Where is my fault ?

EDITED:

I've already tried this lines:

sudo add-apt-repository ppa:linuxuprising/java

sudo apt-get update

sudo apt-get install openjdk-11-jdk

I get error like this:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package openjdk-11-jdk is a virtual package provided by:
  oracle-java15-installer 15-1~linuxuprising3
  oracle-java14-installer 14.0.2-1~linuxuprising1
  oracle-java11-installer-local 11.0.8-1~linuxuprising0
You should explicitly select one to install.

E: Package 'openjdk-11-jdk' has no installation candidate

Answer 1

Just do this after installing,

sudo nano /etc/environment
JAVA_HOME="/usr/lib/jvm/jdk-11.0.8"

Note that, /bin is not to be included. Save and exit. Then,

source /etc/environment

Btw, why complicate a normal installation?

Answer 2

You can probably install java 11 by the following command

sudo add-apt-repository ppa:linuxuprising/java

sudo apt-get update

sudo apt-get install openjdk-11-jdk

You can refer this link to see how to install openjdk 11 on ubuntu.

Then you can run the

update-alternatives --config java

to update the java version. You can refer this link to see how to update java alternatives.