Student Grades Utility Class Structure

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This application demonstrates the use of various control structures. Both iterative structures and decision structures accept multiple numeric grade percentages from the user, calculate the average, and then make a decision about what letter grade the student earned. The program includes the following:

• GradesUtil class structure: GradesUtil-grades: float[] -total: float -average: float #letter: char+getCount(): int +getTotal(): float +getAverage(): float +getLetter(): char
  

  • The constructor method will be used to:

    • accept grades (use sentinel-controlled loop) and initialize the 'Grades' array. (use either static or dynamic array)

    • calculate and set the following properties for the object:

      • total - the sum of grades entered

      • average - an average of grades

      • letter - calculated letter grade (use grading scale from course syllabus without + or - grades)

• Accessor methods simply return the specific value, nothing more.
  

• A second class - GUFormatter (GradesUtil Formatter) inherits the GradesUtil onto this class. GUFormatter +printReport(): string

  • Constructor will simply call the superclass's constructor.

  • PrintReport() will use the data within the inherited properties to generate the following report.
    

    • Number of grades entered

    • Grades total

    • Grade average

    • Letter grade
      

• A driver class demonstrates the use of the GUFormatter class. This driver application can be static or interactive.