Eclipse: Ant Build

Steps:
1) Expand the Java project
2) Choose build.xml
3) Right-click, choose Run As\Ant Build
4) Press F5 to refresh

Eclipse: Speeding Up

Increase the amount of heap memory allocated to Eclipse to speed up execution when developing and debugging large applications.
To allocate 256MB, change the command line to launch Eclipse as follows:

C:\eclipse\eclipse.exe -vmargs -Xmx256M