C++ Classes Introduction

Problem Description

Create class named CollegeCourse with fields courseID, grade, credits, gradePoints and honorPoints. Calculate honorpoints as the product of gradepoints and credits. GradePoints are calculated as (A-10),(B-9),(C-8),(D-7),(E-6) & (F-5). Class CollegeCourse contains following functions:

1. set_CourseId( string CID): sets courseId
2. set_Grade(char g): sets grade equal to g
3. set_Credit(int cr): sets credits equal to cr 4.calculateGradePoints(char g): returns gradePoint(int)
4. calculateHonorPoints(int gp,int cr): return honorPoint (float)
5. display(): prints gradePoint and honorPoint

Examples

Example 1:

Input: 
The first line contains an integer T, the number of test cases. For each test case, there is a string CID, denoting Course ID, a character g, denoting the grade and an integer cr, denoting the credits of the course.

Output:
For each test case, the output is the gradePoints & the honorPoints of that course. 

Constraints

• 1 ≤ T ≤ 100
• 0 ≤ CID.length() ≤ 100
• 'A' <= g <= 'F'
• 1 <= cr <= 4

Note: Grades are not case sensitive.

Example

Example 1:

Input: 
2
CSN-206 A 4
ECE-500 d 3

Output:
10 40
7 21

Solution for C++ Classes Introduction

Code in Different Languages

Python

Written by @vansh-codes

 class CollegeCourse:
     def __init__(self):
         self.courseID = ""
         self.gp = 0
         self.grade = ''
         self.credits = 0

     def set_CourseId(self, courseID):
         self.courseID = courseID

     def set_Grade(self, grade):
         self.grade = grade

     def set_Credit(self, credits):
         self.credits = credits

     def calculateGradePoints(self, grade):
         grade = grade.upper()
         if grade == 'A':
             self.gp = 10
         elif grade == 'B':
             self.gp = 9
         elif grade == 'C':
             self.gp = 8
         elif grade == 'D':
             self.gp = 7
         elif grade == 'E':
             self.gp = 6
         elif grade == 'F':
             self.gp = 5
         return self.gp

     def calculateHonorPoints(self, gp, credits):
         return gp * credits

     def display(self):
         print(self.calculateGradePoints(self.grade), self.calculateHonorPoints(self.gp, self.credits))

# Example usage:
course = CollegeCourse()
course.set_CourseId("CS101")
course.set_Grade("A")
course.set_Credit(4)
course.display()  #

Java

Written by @vansh-codes

 public class CollegeCourse {
     private String courseID;
     private int gp;
     private char grade;
     private int credits;

     public void setCourseId(String courseID) {
         this.courseID = courseID;
     }

     public void setGrade(char grade) {
         this.grade = grade;
     }

     public void setCredit(int credits) {
         this.credits = credits;
     }

     public int calculateGradePoints(char grade) {
         grade = Character.toUpperCase(grade);
         switch (grade) {
             case 'A':
                 gp = 10;
                 break;
             case 'B':
                 gp = 9;
                 break;
             case 'C':
                 gp = 8;
                 break;
             case 'D':
                 gp = 7;
                 break;
             case 'E':
                 gp = 6;
                 break;
             case 'F':
                 gp = 5;
                 break;
         }
         return gp;
     }

     public int calculateHonorPoints(int gp, int credits) {
         return gp * credits;
     }

     public void display() {
         System.out.println(calculateGradePoints(grade) + " " + calculateHonorPoints(gp, credits));
     }

     public static void main(String[] args) {
         CollegeCourse course = new CollegeCourse();
         course.setCourseId("CS101");
         course.setGrade('A');
         course.setCredit(4);
         course.display();  // Output: 10 40
     }
 }

C++

Written by @vansh-codes

class CollegeCourse
 {
     //your code here
     private:
         string courseID;
         int gp;
         char grade;
         int credits;
         
     public:
         void set_CourseId(string courseID){
             this->courseID = courseID;
         }
         
         void set_Grade(char grade){
             this->grade = grade;
         }
         
         void set_Credit(int credits){
             this->credits = credits;
         }
         
         int calculateGradePoints(char grade){
             grade = toupper(grade); 
             switch(grade){
                 case 'A': gp = 10; break;
                 case 'B': gp = 9; break;
                 case 'C': gp = 8; break;
                 case 'D': gp = 7; break;
                 case 'E': gp = 6; break;
                 case 'F': gp = 5; break;
             }
             return gp;
         }
         
         int calculateHonorPoints(int gp, int credits){
             return gp * credits;
         }
         
         void display(){
             cout<<calculateGradePoints(grade)<<" "<<calculateHonorPoints(gp, credits)<<endl;
         }
     
 };

References

• GeekForGeeks Problem: C++ Classes Introduction