[Update] Install Oracle Java SE Development Kit 11 on Ubuntu (linode#2878)

* updated OracleJDK 11 instructions

* Update title and h1_title

* Add link to Oracle account creation

Author: Rajakavitha1

docs/development/java/install-java-on-ubuntu-18-04/index.md

@@ -10,7 +10,8 @@ modified: 2019-01-28
 modified_by:
   name: Linode
 published: 2017-05-30
-title: Install Oracle Java SE Development Kit 11 on Ubuntu
+title: How To Install Oracle Java SE Development Kit 11 on Ubuntu 18.04
+h1_title: Installing Oracle Java SE Development Kit 11 on Ubuntu 18.04
 contributor:
   name: Phil Zona
   link: 'https://github.com/pbzona'
@@ -31,36 +32,51 @@ This guide demonstrates installing Oracle's Java Standard Edition Development Ki
 
 - You will need root access to your Linode, or a [limited user account](/docs/security/securing-your-server/#add-a-limited-user-account) with `sudo` privileges.
 
-- Update your system:
+- Connect to your Linode using a remote desktop sharing system such as a VNC. For more information, see [Install VNC on Ubuntu 18.04](/docs/applications/remote-desktop/install-vnc-on-ubuntu-18-04/) guide.
 
-        sudo apt update && sudo apt upgrade
+- [Create an Oracle account](https://profile.oracle.com/myprofile/account/create-account.jspx) and download the Oracle JDK 11 .tar.gz [archive] (https://www.oracle.com/technetwork/java/javase/downloads/jdk11-downloads-5066655.html). Ensure that the Oracle JDK version is the same as the oracle-java11-installer-local [package version] (https://launchpad.net/~linuxuprising/+archive/ubuntu/java/+packages).
 
 
 ## Install Oracle JDK
 
-The Linux Uprising [Oracle Java PPA](https://launchpad.net/~linuxuprising/+archive/ubuntu/java) uses packages that include install scripts to download and install the Oracle JDK from Oracle's website. Alternatively, you can manually [download the binaries](https://www.oracle.com/technetwork/java/javase/downloads/jdk11-downloads-5066655.html).
+The Linux Uprising [Oracle Java PPA](https://launchpad.net/~linuxuprising/+archive/ubuntu/java) uses packages that include install scripts to install the Oracle JDK.
+
+1.  Update your system:
+
+        sudo apt update && sudo apt upgrade
+
+1.  Check that SHA256 checksum of the binary you downloaded matches the [checksum](https://www.oracle.com/webfolder/s/digest/11-0-5-checksum.html):
+
+        cd Downloads/
+        sha256sum jdk-11.0.5_linux-x64*
+
+1.  Create a `/var/cache/oracle-jdk11-installer-local/` folder, and copy the Oracle JDK 11 .tar.gz from `Downloads` folder to this folder.
+
+        sudo mkdir -p /var/cache/oracle-jdk11-installer-local/
+        sudo cp jdk-11.0.5_linux-x64_bin.tar.gz /var/cache/oracle-jdk11-installer-local/
 
 1.  Add the PPA to Ubuntu. Apt will automatically refresh the package cache.
 
         sudo add-apt-repository ppa:linuxuprising/java
+        sudo apt-get update
 
-1. Install the JDK. You'll be asked to agree to the licensing terms.
+1.  Install the oracle JDK.
 
-        sudo apt install oracle-java11-installer
+        sudo apt install oracle-java11-installer-local
 
-1.  If you want Oracle JDK as the system default, install `oracle-java11-set-default`:
+1.  If you want Oracle JDK as the system default, install `oracle-java11-set-default-local`:
 
-        sudo apt install oracle-java11-set-default
+        sudo apt install oracle-java11-set-default-local
 
 1.  Check that the install was successful with the following command:
 
         java --version
 
     {{< output >}}
 root@ubuntu:~# java --version
-java version "11.0.2" 2018-10-16 LTS
-Java(TM) SE Runtime Environment 18.9 (build 11.0.2+7-LTS)
-Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.2+7-LTS, mixed mode)
+java version "11.0.5" 2019-10-15 LTS
+Java(TM) SE Runtime Environment 18.9 (build 11.0.5+10-LTS)
+Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.5+10-LTS, mixed mode)
 {{< /output >}}
 
 
@@ -84,4 +100,4 @@ OpenJDK includes a runtime environment and compiler which allows you to develop
 
 - Install OpenJRE 11:
 
-        sudo apt install openjdk-11-jre
+        sudo apt install openjdk-11-jre