1.4. Running Multiple Eclipse Windows
Problem
You want to run multiple Eclipse windows at the same time, possibly including different versions of Eclipse.
Solution
Launch Eclipse more than once, and you’ll get multiple Eclipse windows.
Discussion
Running multiple Eclipse windows is not a problem, as shown in Figure 1-4.

Figure 1-4. Running multiple Eclipse windows
You have choices here, as explained in the following sections.
Multiple Eclipse windows, same workspace
To open multiple Eclipse windows using the same workspace, select Window→ New Window. It’s a good idea to use this technique if you want to work in two different perspectives (such as the Java and Debug perspectives) at the same time in different windows.
Multiple Eclipse windows, multiple workspaces
You can launch Eclipse so that it
uses the workspace of your choice
instead of the default one. To do that, enter eclipse -data newWorkSpacePath -showLocation on the command line. This
starts Eclipse with the workspace given by
newWorkSpacePath (the
-showLocation option makes windows show their
location, making it easy to remember where you are if you launch
multiple windows). You would use this technique if you want to
partition projects into different workspaces to keep them separate.
Multiple Eclipse installations
You can have multiple Eclipse installations on the same machine, including different versions. Just unzip or untar ...
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