CS 21a Introduction to Computing I
1st Semester, 2008-2009

Jose Alfredo de Vera III, MS,CEH
Ma. Mercedes Rodrigo, Ph.D.
Jessica Sugay
John Paul Vergara, Ph.D.

Announcements

• Here is a sample final that you can use for review.
• Project 3 (due October 6) has been posted. Note the clarification and optional feature thay you may support to get bonus points.
• Project 2 specs have been posted on the Projects section. The project is due September 19.
• Midterm exam and answer key
• Midterm exam moved to August 22, 6-8pm.

  Room        Section   Faculty Assigned
  IBM Rm      A         JDeVera
  F204	    B         JPVergara
  F227        C         MRodrigo/JSugay
  F228        D         MRodrigo/JSugay
  F223        E         JPVergara
  

• August 5: Note output correction on first project 1 tester program.
• August 1: Note (slight) correction on project 1 specs (see (UPDATE!) portion on Projects section).
• Here is a sample midterm from two years ago.
• Project 1 specs have been posted. (Due Aug 15) See Projects section of this website.
• Midterm exam on August 20 (Wednesday), 6-8pm, at the following venues:

  Room        Section       Faculty Assigned
  CTC 103     A             JDeVera
  CTC 102     B & E         JPVergara
  CTC 313     C & D         MRodrigo/JSugay
  

• Welcome to the CS 21a course website. Visit this site regularly.

Course Material

• Introduction to Computer Science
• Introduction to Java Programming ; Debugging Exercises
• DOS and the Command Line, IDEs
• Introduction to Object-Oriented Programming (Updated so that bank account balances are stored as doubles, not as ints);
  Object Examples (BlueJ Project)
• Classes ; BankAcccount class code development progression: public interface , comments , complete class , documentation generated by java doc , tester .
• Console Output
• Types (Updated: note correction on 2nd-to-last slide about next/nextLine)
• Decisions
• Class Relationships and Object Interaction
  Bank and WaterTank Examples (BlueJ Projects)
• Loops
• Arrays (Updated 26 August!)
  Bank Example using Arrays
• JCreator
• Inheritance
  BlueJ Projects demonstrating inheritance: Different accounts version 1 and version 2 .
  Corresponding JCreator projects: version 1 and version 2 .
• Interfaces
• Java GUI: Applets and Frames
  Sample GUI code
• Event Handling
  Sample event handling code
• Layout Managers
  Demo code demonstrating layouts
• Jar Files
• Files
• Number Representations

Lab Specs

• Lab 0 specs
• Lab 1 specs
• Lab 2 specs : Code for EggTraderDriver.java and corresponding output
• Lab 3 specs : TollPlaza.java and corresponding output
• Lab 4 specs : TesterDUH.java
• Lab 5 specs : Lab 5 template and corresponding output

Projects

• Project 1 (Due August 15):

  Create three classes that simulate operations in a hotel:

  • Room : stores room rate and current occupant; supports methods that cause the room to be occupied or vacated.
  • Hotel : creates three room objects and stores total collections; supports methods that facilitate checking into and out of the hotel.
  • Receptionist (updated!) : associated to a hotel and stores collections coursed through the receptionist; supports methods that facilitate checking into and out of the hotel.
  Click on the class names for a more complete specification of each class. A Tester.java class is provided that tests your classes. Once this class executes, the following output (updated!) should be produced. Note the error messages printed during error cases.

  Clarification: There will be three rooms in the hotel with following rates:
  Room 101: P2000.00
  Room 102: P2500.00
  Room 103: P3000.00

  (UPDATE!) For the checkOut() method of the Receptionist class, have a return type that is double instead of void so that you could return the amount charged to the occupant during check out. A TesterNew.java class (with this corresponding output ) has been provided to test this feature. Note that the first tester class still works as originally specified.

  In addition, create a HotelConsole class with a main method that creates a single Hotel object and a single Receptionist object (associated to the hotel) and then repeatedly asks the user for input and then carries out transactions on the Hotel object (through the Receptionist object) as indicated. Use the Scanner class for keyboard input. Clarification: Details on the HotelConsole class (the prompts and user options that you will support) are left up to the student.

  Submit a zip file containing all classes through moodle by August 15, midnight. Include appropriate javadoc comments in your classes.

• Project 2 (Due September 19): Specs
• Project 3 (Due October 6): Create a JFrame application that serves as a user interface for a Receptionist (connected to a Hotel) object. The frame essentially replaces the HotelConsole functionality of Project 2. Use visual components (buttons, text fields, text areas, and others) for input and output.
  Clarification: you may update the Hotel and Receptionist classes as you see fit. In particular, you may add methods or arrange it so that the methods return strings that in turn can be used to place information on the GUI visual components.
  Submit a zip file of the project through moodle by October 6.
  Optional (10 bonus points): Include a "group-checkin" feature that checks in a group of occupants listed in a text file. The text file will contain several lines, with each line containing a room number, client name, and check-in day.

Links

• Command Prompt batch file (automatically sets path)
• Material specific to JP Vergara's sections
• Material specific to Jal de Vera's sections