Day1.zipthat you download from the website or Google Drive cannot be directly read by Eclipse. You must convert it into a folder.
To submit follow these two steps:
To zip the folder containing your project, run zipper.jar from your project folder.
Find the folder with your project in it outside of Eclipse. If you don't know where your project is located in your computer, start from Eclipse and right-click (Mac OS X: Ctrl-Click) on your project name (the blue folder in the left sidebar). Then click on 'Properties', and navigate to/click on the 'Location' path to your project.
Double-click on zipper.jar. You should see the following 'CS Bridge Assignment Submission' window: