How do I build a Java project in Eclipse, to create an external JAR

Question

I recently inherited a large software project written in Java. The last developer used Eclipse, so that\'s what I\'m using, but I can\'t figure out how to build anything. I don\

Answer 1

File -> Export -> Export JAR File. Then select your project, press next twice, select the main class.

If you just want to run, open the main class and click the green arrow at the top.

If you just want to build class files, I believe that Eclipse automatically builds every time you save. You need to select Project -> Build Automatically