title: Accessing Existing Java Files in Eclipse
body: <p>I want to access a folder that contains already written java files and img files in Eclipse. I did it already with one folder but I don't remember how. I want to get everything in one place like in this picture </p>
  
  <p><img src="https://i.stack.imgur.com/KDOek.png" alt="enter image description here"></p>
  
  <p>Error </p>
  
  <p><img src="https://i.stack.imgur.com/jkLYD.png" alt="enter image description here"></p>