Week 11

Post date: Apr 20, 2017 6:30:22 AM

/!\ Quiz 2 is next week (week 12)

/!\ Sections 101 and 103: Quiz 1 will be on the first class

/!\ Section 102: Quiz 1 will be on the second class

Defining Classes 1

4.1 Class Definitions

Recommended Self-Test Exercises:

• • p 218: Ex. 3.

  • p 220: Ex. 4.

  • p 228: Ex. 5-9.

In-class Exercises:

1. Implement the following class:

1. Implement a NewStudent class with the following fields and methods:

2. Fields:

3. String name

4. double totalScore

5. int numberOfQuizzes

6. Methods:

7. public String getName()

8. public double getAverage() //this should return zero if no quiz has been taken.

9. public double getTotalScore()

10. public void printStudent() //this should print the student’s name and average score

Defining Classes 1

4.2 Information Hiding and Encapsulation

Recommended Self-Test Exercises:

• p 231: Ex. 10-12.

  • p 249-250: Ex. 17-19.

Programming Exercises:

• p 285: Ex. 3.

• Class Rectangle (below) and its test program (see sample output):

  • • Make sure the values entered for both length and width are positive numbers.

• Class Circle (below) and its test program (similar to the previous example):

  • Make sure the values entered for radius are positive numbers.

Circumference = 2 • π • radius | Circle Area = π • r² | Sphere Volume = 4/3 • π • r³