title: How do I make my Eclipse project a Java project?
body: <p>I am again at the point where I believe my uni wants to freak me out. My uni just threw this eclipse project at me and I am supposed to run it as a java application. My uni says this is trivial but for me it is not!</p>
  
  <p>So here it goes: They gave me a zip archive and I imported it by <code>Import</code> <code>Existing Projects into Workspace</code> and then selecting the zip archive. It all went well, however, I am not able to run it as a Java application. Also, I noted that the folder <code>JRE System Library</code> was missing. </p>
  
  <p>Can someone explain me what this all means and how I can solve this problem? My uni did feel like explaining a lot...</p>