If you are using Ubuntu you can install eclipse-ide-java from this PPA.
JavaStudio is a feature built on the Eclipse IDE. If you already have an Eclipse installed make sure it contains Eclipse Java EE packages. If you dont have an Eclipse IDE please download it from here as seen below:
In case you need Java Environment, we recommend Java 7 or higher for better compatibility. You can download and install Java Development Kit (JDK) 7 from here. Please use 64bit JDKs if you have a suitable CPU. No matter if you use 32bit environment.
After downloading the Eclipse IDE you need to extract it. We recommend extracting it to d:\eclipse on Windows Platforms, /Applications/eclipse on OSX Platforms, /home/user/eclipse on Linux Platforms.
Please note that you need to edit memory, file encoding and language settings in order to work properly in Eclipse IDE. Edit your eclipse.ini from eclipse dir and add the following lines:
After launching the Eclipse IDE, it will ask you for a Workspace as seen below:
Enter an empty folder path to use as workspace. A workspace is the place that stores all of your Project files. If you need further information about Eclipse Workspace please read this first.
Now you will install JavaStudio. In Eclipse IDE, go to Help > Eclipse Marketplace as seen below:
Click the Install button. And follow the instructions as usual by Next and Next... When the download process completed Eclipse IDE will ask you for Security Confirmation. Click OK. This will be similar to:
Now Eclipse IDE asks you for Restart to finish the installation. Click Yes to confirm as seen below:
After restart Eclipse IDE will ask you to select a workspace again. Just Click OK to use the last workspace.
Install GWT Plugins
Go to the Eclipse Market Place and search for GWT.