CMSC 202 Computer Science II, Spring 2007, Section 010x

Lecture 4: Objects & Classes

Thursday 02/08, 2007

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Assigned Reading:  6

Slides As Shown:

• Announcements, etc: [slide view] [print view]

• Introduction to C++ Classes : [slide view] [print view]

• Encapsulation : [slide view] [print view]

Topics Covered:

• Discussed functions with default arguments, which we skipped over last time. Some examples:
  • Using a random function with default parameters: random.cpp, random.txt
  • Assertion failed!: random2.cpp, random2.txt
  • Check for seeding using static local variable: random3.cpp, random3.txt

• Discussed nested local scopes in this example: scope1.cpp, scope1.txt

• Discussed basic syntax for defining and using C++ classes (see slides). Looked at the simple example of DayOfYear class from the textbook: DayOfYear1.h, DayOfYear1.cpp, doytest1.cpp.

• Discussed encapsulation/data hiding (see slides).