class GradedActivity {    private:      double score;    public:      GradedActivity()           { score = 0.0;  }      GradedActivity(double s)           { score = s;  }      void setScore(double s)           { score = s;  }      double getScore()           { return score;  }      char getLetterGrade()  const; }; Implement the GradedActivity class above. In this C++ assignment, create a new class Assignment which is derived from GradedActivity.  It should have three private member ints for 3 different parts of an assignment score: functionality (max 50 points), efficiency (max 25 points), and style (max 25 points).  Create member function set() in Assignment which takes three parameter ints and sets the member variables.  It should also set its score member, which is inherited from GradedActivity, using the setScore() function, to functionality + efficiency + style.  Signature: void Assignment::set(int, int, int) Create a main program which instantiates an Assignment, asks the user for its functionality, efficiency, and style scores, and prints out the score and letter grade for the assignment.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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class GradedActivity

{

   private:

     double score;

   public:

     GradedActivity()

          { score = 0.0;  }

     GradedActivity(double s)

          { score = s;  }

     void setScore(double s)

          { score = s;  }

     double getScore()

          { return score;  }

     char getLetterGrade()  const;

};

  • Implement the GradedActivity class above.
  • In this C++ assignment, create a new class Assignment which is derived from GradedActivity.  It should have three private member ints for 3 different parts of an assignment score: functionality (max 50 points), efficiency (max 25 points), and style (max 25 points). 
  • Create member function set() in Assignment which takes three parameter ints and sets the member variables.  It should also set its score member, which is inherited from GradedActivity, using the setScore() function, to functionality + efficiency + style.  Signature:

void Assignment::set(int, int, int)

  • Create a main program which instantiates an Assignment, asks the user for its functionality, efficiency, and style scores, and prints out the score and letter grade for the assignment.
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