By default, compiled .class
files are created or
updated when you save your code. You also can perform builds
manually.
When you save a resource, .class
files are built
automatically by default. If that feature isn’t
turned on, select Window→ Preferences→ Workbench,
and then check the “Perform build automatically on
resource modification” checkbox, as shown in Figure 4-15. To turn off automatic building, uncheck this
checkbox.
To build a project manually, select Project→ Build Project.
Tip
If a .class
file has been moved or damaged,
auto-build won’t work, and you’ll
have to start over by rebuilding the .class
file
yourself. In this case, select Project→ Build Project.
Eclipse actually does a good job setting the build order of projects by interpreting project references itself. However, you also can set the build order yourself. Select Window→ Preferences→ Build Order, as shown in Figure 4-16.
If you highlight a project in a view and select Project→ Rebuild Project, the project you’ve selected is rebuilt. What’s cool about this is that you can choose only certain projects and just select Project→ Rebuild Project to rebuild them, without having to rebuild all projects (which Project→ Rebuild All does).
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