Exam Review

1
Exam Review

• byBroc Miramontes
• Arion Clarke

2
Object Oriented Design

• Candidate Classes
• Decide on Classes
• UML Diagram

3
Candidate Classes

• GPA
• Transcript
• Student
• DB
• Grade
• Course
• Term

4
Decide on Classes

• GPA ???
• Transcript
• Grade
• Course
• Term

5
GPA Decision

• BigDecimal
• String
• Float
• Int

6
UML Diagram
7
Five Sample Functions

• Transcript.calculateOverallGPA()
• Transcript.calculateMajorGPA()
• Term.calulateTermGPA()
• Transcript.isRepeatCourse(Course)
• Grade.convertGradeToPoints()

8
Functions Specifications

• Transcript.calculateOverallGPA()
• Description Calculates the overall GPA from the
  current transcript using totalUnits and
  totalGradePoints.
• Precondition None
• PostConditions Returns the overall GPA as a
  java.math.BigDecimal.
• Transcript.calculateMajorGPA()
• Description Calculates the major GPA from the
  current transcript using totalMajorUnits and
  totalMajorGradePoints.
• Precondition None
• PostConditions Returns the major GPA as a
  java.math.BigDecimal.

9
Functions Specifications

• Term.calulateTermGPA()
• Description Calculates the term GPA from the
  current transcript using totalTermUnits and
  totalTermGradePoints.
• Precondition None
• PostConditions Returns the term GPA as a
  java.math.BigDecimal.
• Transcript.isRepeatCourse(Course)
• Description Is passed a course and checks to see
  if the course is repeated in the current
  transcript.
• Precondition None
• PostConditions Returns a boolean value of true
  if the course was repeated otherwise it returns
  false.

10
Functions Specifications

• Grade.convertGradeToPoints()
• Description Takes a grade and uses metadata to
  get the points that grade corresponds
  to.Examplenew Grade(A-).convertGradeToPoints(
  )returns 3.700
• Precondition None
• PostConditions Returns the points as a
  java.math.BigDecimal.

11
Unit Test

• Unit Testing of Transcript.isRepeatCourse

12
Structural Design

• Tasks/Use Cases
• Verb Phrases
• Functions

13
Tasks/Use Cases

• Calculate overall GPA
• Calculate major GPA
• Calculate term GPA

14
Verb Phrases

• count total units
• sum total grade points
• divide the grade points by total units
• count major units
• sum major grade points
• divide the major grade points by total major
  units
• count term units
• sum term grade points
• divide the term grade points by term units

15
Functions

• calcGPA()
• countTotalUnits()
• sumTotalGradePoints()
• countMajorUnits()
• sumMajorGradePoints()
• countTermUnits()
• sumTermGradePoints()
• intializeCourseArray()
• roundIntToTensPlace()

16
structure

• struct Course
• char name30
• char grade10
• unsigned int points
• bool majorCourse

17
ADT
18
Structural Diagram Design
19
Five Sample Functions

• int countTotalUnits(Course )
• unsigned int sumTotalGradePoints(Course )
• unsigned int calcGPA(unsigned int gradePoints,
  int units)
• int countMajorUnits(Course )
• unsigned int sumMajorGradePoints(Course )

20
Functions Specifications

• int countTotalUnits(Course )
• Description countTotalUnits will go through the
  two dimensional Course array and add up all the
  units.
• Precondition intializeCourseArray() has been
  called.
• PostConditions Returns the total amount of units
  found.
• unsigned int sumTotalGradePoints(Course )
• Description sumTotalGradePoints will go through
  the two dimensional Course array and add up all
  the grade points.
• Precondition intializeCourseArray() has been
  called.
• PostConditions Returns the total amount of grade
  points.

21
Functions Specifications

• unsigned int calcGPA(unsigned int
  gradePoints, int units)
• Description calcGPA() divides gradePoints by
  units.
• Precondition units gt 0
• PostConditions Returns a weighted int
  corresponding to the overall GPA.
• int countMajorUnits(Course )
• Description countMajorUnits() will go through
  the two dimensional Course array and add up all
  the major units
• Precondition intializeCourseArray() has been
  called.
• PostConditions Returns the total amount of major
  units found.

22
Functions Specifications

• unsigned int sumMajorGradePoints(Course )
• Description sumMajorGradePoints will go through
  the two dimensional Course array and add up all
  the major grade points.
• Precondition intializeCourseArray() has been
  called.
• PostConditions Returns the total amount of
  weighted major grade points.

23
Unit Test

• Unit Testing of unsigned int calcGPA(unsigned int
  gradePoints, int units)

24
Metadata

• Major classes per major, based on school
• Grade points per grade, based on school

25
System Tests