312-174

Lab 1

Spring 2000

Due (PreLab, bridge): beginning of class, Friday, 28 Jan.

Due (Lab): beginning of class, Monday, 31 Jan.

Due (PostLab): Monday, 31 Jan, beginning of class.

For this lab you are to complete the following items.

1. Complete prelab 1 and the bridge exercise from the Data Structures in C++ lab manual by Roberge. Note that this must be turned in by the end of your lab period. You may work in pairs for the PreLab and bridge. For the prelab you have only to implement the member functions Logbook (the constructor), putEntry, getEntry, month, year, daysInMonth, and leapYear.

2. You must next complete in-lab exercise 1 from the lab book. The Lab must be done individually.

3. Finally, you must complete a postlab exercise 1 from the book. This must be done individually and is due Monday 31 January at the beginning of class.

All results must be put into the appropriate lab folder on the cs174jb nova account.

All prelabs must have a heading identifying the people who worked on the project. Programs must also contain appropriate comments. See the style sheets.

Additional requirements:

1. You must include pre and post conditions in every member function that you write (both preLab and Lab).

2. Your member functions must check for any requirements (preconditions) that are part of the ADT structure given on pages 2 and 3. If the requirements are not met by the parameters, the member functions must provide a proper responce.

3. Add to the Test Plan for Test 1:

   Test case			Logbook month			No. of days in month		Checked
   
   Incorrect input		15 1999					30
   
   

Hints:

• You may have to change test.cpp to read int main() instead of void main() depending on the compiler you use.

• Note the colon following the function declaration on page 10 of the lab manual. This indicates an initialization list. The list consists of members of the class. The value in parenthesis are the values that these members are to take. Thus the list logMonth(month), logYear(year) has the effect of:

  {
  logMonth = month;
  logYear = year;
  }
  

  You may use initialization lists in your code of you may do explicit initialization in the body of the constructor. Note that const and reference members (declared with the ampersand operator, ie & ) must be initialized using initialization lists.

  Further, note that class members may not contain initializations. In other words the following is illegal:

  class logBook
  {  public:
  		/* declarations */
  		
  private:
  	logMonth = 1;	// illegal
  	logYear = 99;	// illegal
  };
  

• If you want to do an initialization by default, you can use the following type of constructor:

  logBook::logBook(int month = 1, int year = 99)
  : logMonth(month), logYear(year)
  { /* empty body */ }
  

  This constructor takes from 0 to 2 parameters and you would no longer need to define any other constructor.

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Last Modified: 4 January 2000

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