Subsequent programming assignments will have much less of a cookbook flavor; instead, they will focus on designing, writing, and debugging programs using some of the libraries we will discuss. But, these assignments will assume that you are already an experienced Eclipse user, who knows all the tools and skills covered in this assignment, and can easily apply them when writing his/her own actual programs.

So, treat this assignment very seriously: you will not want to still be learning this material at the same time that you are writing your early programs. Now is the time to begin mastering these important tools and skills. I recommending doing all parts of this assignment twice: first reading the instructions carefully, and again working without the written instructions (to s determine whether you have internalized them).

Finally, read and follow these instructions carefully. It would be an excellent idea to print a copy of this web page, read through it, and highlight any details that you think are important (and might forget as you are working on the assignment) or that you are confused about. If you have any questions about these instructions, for example, if you think they are in error, or just confusing, please contact your instructor or better yet, post on one of the MessageBoard forums.

You may want to first read through the Eclipse section of the Windows Operating System & Eclipse IDE web page (which is also accessible on the Handouts web page). It includes lots of useful information about using the Eclipse IDE using Java (my ICS-21 students learn about Eclipse and Java this way).

To do this assignment, you must have already downloaded and installed Python, Java and the Eclipse IDE on your own computer (or be using one of the UCI Lab machines, where it has already been downloaded/installed).

In the first part of writing programs with each language, you will start a new project and write a trivial program; in the second part you will download prewritten programs and correct them.

1. Start a New Project.
   • Select File, hover over New, and click Java Project.
   • In the Project Layout pane, click the radio button labelled Use project folder as root for sources and class files. To avoid having to make this selection in the future on you home machine, in the Source and output folder pane, click the radio button labelled Project; then click Apply; then click OK.
   • In the Project name text box, type Program0aJavaNew.
   • Click the Finish button.

   Note that the Package Explorer tab will now show a folder icon labelled Program0aJavaonNew. Disclose this icon and note the JRE System Library icon, which you do not have to disclose.

2. Create a class to contain the program.
   • Click the Program0aJavaNew. icon in the Package Explorer tab.
   • Select File, hover over New, and click Class.
   • In the New Java Class pane, type the name Test. Click the Use project folder as root for sources and class files radio button.
   • Check the box labeled public static void main (String[] args).
   • Click the Finish button.

   Note that the Package Explorer tab will now show a folder icon labelled New.java. The editor pane will show a tab labelled New.java with some text in it. Right-click the grey vertical line in the left of the New.java window contents and click Show Line Numbers in the pull-down menu.

3. Clean up the text and write a tiny program.
   • Select line 1 and delete it.
   • Select lines 2-5 and delete them.
   • copy (or cut/paste) the text
     System.out.println("Hello world!");
     into the editor, replacing line 3.

4. Run the program
   • Right-click the New.java window contents, hover over the Run As entry, and click 1 Java Application.
   • Click the checkbox labelled Always save resources before launching in the Save and Launch pop-up window.
   • Click OK.

   A tab labelled Console should appear beneath the New.java pane and show the text Hello world!.

5. Change and rerun the program
   • Replace the word Hello by the word Goodbye.
   • Click the "white triangle in a green circle" icon (aka as "rerun"; it is beneath the Navigate menu item.

   The tab labelled Console should now show the text Goodbye world!.

6. Delete the project (from Eclipse) and remove it from the workspace
   • Right-click the icon labelled Program0aJavaNew.
   • Click the "red X" Delete icon
   • Click OK in the Delete Resources pop-up window.
     NEVER click/check the Delete project contents on disk (cannot be undone) icon.
   • Remove the Program0aJavaNew folder from the workspace folder. You can delete it, or save it in a folder with all the work you do for this course.

   Again, if you have any problems, please ask for help during the lab. After you are finished, repeat these steps a few times, until you can do them from memory. This programming assignment is very cookbook, but by the end you should have mastered the steps needed in creating and manipulating projects with Eclipse -something you will do over and over again during the quarter. Repeat all these steps until you can perform them from memory.

1. Start a New Project.
   • Select File, hover over New, and click PyDev Project.
   • In the Grammar Version pane, select 3.0 from the pull-down menu.
   • Ensure the radio button Add project directory to the PYTHONPATH? is selected.
   • In the Project name text box, type Program0aPythonNew.
   • Click the Finish button.

   Note that the Package Explorer tab will now show a folder icon labelled Program0aPythonNew. Disclose this icon and note the Python32 icon, which you do not have to disclose.

2. Create a module to contain the program.
   • Select File, hover over New, and click PyDev Module.
   • In the Name text box, type the name Test; the Source Folder text box should already contain /Program0aJavaNew.
   • Click the Finish button.

   Note that the Package Explorer tab will now show a folder icon labelled New. The editor pane will show a tab labelled New with some text in it. Right-click the grey vertical line in the left of the New.java window contents and click Show Line Numbers in the pull-down menu.

3. Clean up the text and write a tiny program.
   • On line 6, replace the name after @author: by your name.
   • copy (or cut/paste) the text
     print("Hello world!")
     into the editor on line 6.

4. Run the program
   • Right-click the New window contents, hover over the Run As entry, and click 1 Python Run.
   • Click the checkbox labelled Always save resources before launching in the Save and Launch pop-up window.
   • Click OK.

   A tab labelled Console should appear beneath the New pane and show the text Hello world!.

5. Change and rerun the program
   • Replace the word Hello by the word Goodbye.
   • Click the "white triangle in a green circle" icon (aka as "rerun"; it is beneath the Navigate menu item.

   The tab labelled Console should now show the text Goodbye world!.

6. Delete the project (from Eclipse) and remove it from the workspace
   • Right-click the icon labelled Program0aPythonNew.
   • Click the "red X" Delete icon
   • Click OK in the Delete Resources pop-up window.
     NEVER click/check the Delete projcet contents on disk (cannot be undone) icon.
   • Remove the Program0aPythonNew folder from the workspace folder. You can delete it, or save it in a folder with all the work you do for this course.

   Again, if you have any problems, please ask for help during the lab. After you are finished, repeat these steps a few times, until you can do them from memory. This programming assignment is very cookbook, but by the end you should have mastered the steps needed in creating and manipulating projects with Eclipse -something you will do over and over again during the quarter. Repeat all these steps until you can perform them from memory.

Also, whenever you want to write a small program to test out your understanding of Java or Python, you should have a very low threshold to quickly creating a project and writing the experimental code that you want to test.