IntelliJ IDEA

IntelliJ IDEA
1. For the JUnit test, the class must be public, or there's no context to run it. IntelliJ also requires the test methods are public. However, by default when Eclipse creates the JUnit test cases, the class is not public, the methods are not public either.
2. Community version "Terminal" works perfect, however in the company Ultimate version "Terminal" doesn't work, even if IntelliJ is started with administrator.
3. IntelliJ occupies much more memories, for one single Project, the memory usage is over 1G, Eclipse only uses 200 M for the same Project
4. IntelliJ doesn't have the work space concept?