title: How to run multiple test classes with junit from command line?
body: <p>I know that to run junit from command line you can do this:</p>
  
  <p>java org.junit.runner.JUnitCore TestClass1 [...other test classes...]</p>
  
  <p>However, I want to run many tests together and manually typing "TestClass1 TestClass2 TestClass3..." is just inefficient. </p>
  
  <p>Current I organize all test classes in a directory (which has sub-directories indicating the packages). Is there any way that I can run junit from command line and let it execute these test classes all at once?</p>
  
  <p>Thanks. </p>