- Feb 19, 2012
I'm just starting in my attempt to develop apps for Android, and am starting by learning Java. I have downloaded the Headfirst Java textbook along with JDK and Eclipse. However, I can still not open the .class and .java extension files needed for the textbook. Perhaps I did something wrong? What exactly is supposed to open those files? I am running Windows 8 and have not figured this out. Any help would be appreciated, thanks!