This assignment is to familiarize you with GitHub and Eclipse, and to make sure you're set-up to write, test, and submit code.

First, locate and copy the "clone URL" for this repository:

Then, launch Eclipse. If you don't see the welcome screen, choose Welcome from the Help menu.

If you're repeating this exercise from home, and you don't have Eclipse installed yet, you can download it from https://www.eclipse.org/downloads/.

Choose Checkout projects from Git:

In the dialog that appears, select Clone URI and click Next.

Paste the URL you copied from GitHub in the URI field. If the URL was in your clipboard, Eclipse will automatically fill it in.

Enter your GitHub username and password in the Authentication area. You can check the box to store your credentials if you like. If you don't, it just means you'll be prompted for them occasionally.

Click Next, Next, Next, Next, Finish. If you're the curious type and don't get confused easily, try reading the dialogs you're clicking through and guess what they're talking about.

Eclipse should open the Java perspective:

On the left, in the Package Explorer, click on the little ">" symbols to expand HelloWorld, src, and (default package). Then double-click on HelloWorld.java to open it in the editor.

Enter the following code: System.out.println("Hello World");

Make sure you get the spelling, capitalization, and punctuation exactly as shown.

Save (Ctrl+S) and click the Run button on the toolbar.

If all went well, the lower portion of the screen should switch to the Console tab, and the text "Hello World" should appear.

Congratulations! Printing Hello World is a rite of passage when starting any new programming language.

Now it's time to upload your work back to GitHub. You don't need to wait until you're done to do this. Indeed, you should get in the habit of pushing your work-in-progress to GitHub to facilitate working on it from multiple locations (i.e., home and school), and as a backup in case the worst happens to your computer.

In the Package Explorer on the left, right-click on HelloWorld (the top-most node in the tree). Go all the way down to the Team sub-menu and choose Commit.... Alternatively, you can use the keyboard shortcut Ctrl+# (Ctrl+Shift+3), if you find that easier.

The Git Staging tab should come into focus, and your modified file (HelloWorld.java) should appear in the Staged Changes area. (If it instead appears in Unstaged Changes, click the green ++ icon.)

In the Commit Message area, you should type a description of the changes you've made. In this case, we'll just type Print Hello World. Click Commit and Push.... Enter your username and password, if prompted.

After a little while, you should get a confirmation dialog with some inscrutable gibberish. Just click Close.

Go back to GitHub and refresh your repository. If you navigate to your changed file (src/HelloWorld.java), you should see your changes.

Your work has now been submitted.