Lab 3

Part 1 (40 min - TA led)

• MP1 is now available. In one week, your program will be graded at 8 pm.
• Spring 2017: "Escape from the Maze" handout
• Introduction to Finite State Machines

Common Problems and Solutions

• I can click, but can't seem to change Java files in Eclipse.
  Ans: You're looking at the file on the subversion server. You need to check-out the project to the local computer first. Right click on the project and select "Check-Out". Then use the Package view to select the file that you want to run or edit.
• I can edit the files but I can't run them!
  Ans: You need to check out "Challenge1-DebugMe" as a project, not your netid.
• What do I need to do?
  Ans: Read the "ReadMe" file inside the project.
• How do I finish?
  Ans: Make sure you commit your project back to the server. Remember there must be no (red) compile errors anywhere in your project.
• I have a compile error in TextIO.java.
  Ans: Change the compiler settings to 1.6
• I have a compile error in a test class.
  Ans: These classes call your code. Modify your code to fix the test's expectations.
• I'm lost dazed and confused.
  Ans: Seek help from the course assistants.
• How do I work with two computers?
  Ans: Before finishing today, COMMIT your changes back to subversion. When going back to a different computer use UPDATE to bring in the latest changes from subversion.

Part 2:

Lab Objectives

Lab assistants will:

• Demonstrate:
  • Checking out the project.
  • Running a unit tests. Running one test.
  • Starting the debugger.
  • Checking the autograder output and MP scores
• Ask all students to log in to Turing's Craft. During section, each student should show you where they are with Turing's Craft.
• Remind students to sign up and pay Turing's Craft.
• If necessary, demo complete Turing's Craft by using the lecture page pre-reading sections.
• Get students started with the MP1
• COMMIT code at end (always Checkout /Update ... Later Commit) so that you can even work on two machines.

Lab Description

Information, hints and key points for completing MP1:

• MP1 (DebugMe) consists of three short programs: Factorial, Winner, QuizMaster.
• This project is available in Subversion.
• If you have a compile error in TextIO, then you need to change your Java Compiler level to a different value (e.g. 1.8) and do Project Menu->Clean->Clean Project. You may need to repeat this.
• Setup instructions, including your subversion directory can be found in Lab 1.
• See the R-E-A-D-M-E--F-I-R-S-T that is included in the MP.
• Make sure you COMMIT your changes. COMMIT means to commit your files back to subversion.
• If you work on two computers, you'll need to know about UPDATE, too.

Autograder

• You have a local autograder and units tests. Use them!
• Each time the real autograder is run it creates a new subdirectory.
• You can review the output of the tests there and the compile log.
• Make sure you commit everything and there are no compile errors.

Grading

• MP Score is maximum of ALL grading runs that course staff runs.
• Lab achievement points are based on the following:
  • I can use the debugger! I can single-step and also use breakpoints in my MP.
  • I can switch perspectives (Java/SVN/Debugger) and know how to reset a perspective.
  • I can commit modified Java files back to Subversion.