In today’s tutorial we are showing how to quickly install Java onto the Wandboard and explorer the Java2Demo applications.

To get started you will need to prepare a Wandboard that boots from a SD card containing Ubuntu that can be found on the Wandboard Download Page.

Step 1: Download Ubuntu 12 for your Wandboard from the Wandboard Download Pageand create a bootable SD card. (refer to the document that comes with the download).

Step 2: Boot your Wandboard. All instructions below should be performed on your Wandboard.

Step 3: Get the Oracle Java files 

Open Firefox and go to Oracle JDK download site as below:

http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html

Step 3a: Click to accept the License agreement (after reading it).

Step 3b: Select “jdk-7u45-linux-arm-vfp-sflt.tar.gz” (as highlighted).

Note : Select SOFT FLOAT ABI since Wandboard Ubuntu 12 currently does not support hard float.

The JDK will be saved in “~/Downloads” directory (default Firefox download location)

Step 3c: On the same page, scroll down a bit further and select the demo images “jdk-7u45-linux-arm-vfp-sflt-demos.tar.gz”

The JDK demos will be saved in “~/Downloads” directory (default Firefox download location)

Step 4: Now that you have all files. Let’s install them.

Step 4a: Install JDK7 on Wandboard/Ubuntu by opening the terminal window

Change the current directory to ~/Downloads ($cd Downloads)
Unzip JDK 7 to /opt ($sudo tar zxvf jdk-7u45-linux-arm-vfp-sflt.tar.gz –C /opt)

Step 4a: Install JDK demos on Wandboard/Ubuntu in a simalar manner as installing the JDK by using the terminal window

Change the current directory to ~/Downloads ($cd Downloads)
Unzip JDK 7 demos to /opt ($sudo tar zxvf jdk-7u45-linux-arm-vfp-sflt-demos.tar.gz –C /opt)

Step 5: Ensure that you installed Java

Step 5a: Open terminal window.
Add JDK bin into PATH variable. (#export PATH=$PATH:/opt/jdk1.7.0_45/bin)
Test Java version. (#java –version)
(If you see the message as the shown above screen, it means Java VM has been installed successfully!)

Step 6: Java Demo Playtime

Now all is installed. Let’s get the demo loaded on your desktop.

To run the demo application:
($cd /opt/jdk1.7.0_45/demo/jfc/Java2D)
($java –jar Java2Demo.jar)

Within moments you will see the Java2Demo application appearing on your desktop. (as below).