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  1. Inheritance
  2. Discussions

Inheritance

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8 Discussions

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  • tlmyasirs1
     + 0 comments
    class Student(Person):
    #   Class Constructor
        def __init__(self, firstName, lastName, idNum, scores):
            self.firstName = firstName
            self.lastName = lastName
            self.idNumber = idNum
            self.scores = scores
    #
        def calculate(self):
            avg = sum(self.scores) / len(self.scores)
            if ((90<=avg) and (avg<=100)):
                return str("O")
            elif ((80<=avg) and (avg<90)):
                return str("E")
            elif ((70<=avg) and (avg<80)):
                return str("A")
            elif ((55<=avg) and (avg<70)):
                return str("P")
            elif ((40<=avg) and (avg<55)):
                return str("D")
            else:
                return str("T")

  • n_khadagade711
     + 0 comments
    class Student(Person):
    #   Class Constructor
    #   
    #   Parameters:
    #   firstName - A string denoting the Person's first name.
    #   lastName - A string denoting the Person's last name.
    #   id - An integer denoting the Person's ID number.
    #   scores - An array of integers denoting the Person's test scores.
    #
    # Write your constructor here
    def __init__(self, firstName, lastName, idNumber, scores):
        Person.__init__(self,firstName, lastName, idNumber)
        self.scores = scores

    #   Function Name: calculate
#   Return: A character denoting the grade.
#
# Write your function here
def calculate(self):
    sum = 0
    for i in range(len(self.scores)):
        sum = sum + self.scores[i]

        avg = sum/len(self.scores)

    if ((90<=avg) and (avg<=100)):
        return str("O")
    elif ((80<=avg) and (avg<90)):
        return str("E")
    elif ((70<=avg) and (avg<80)):
        return str("A")
    elif ((55<=avg) and (avg<70)):
        return str("P")
    elif ((40<=avg) and (avg<55)):
        return str("D")
    else:
        return str("T")

  • RodneyShag
     + 0 comments

    Java solution - passes 100% of test cases

    From my HackerRank solutions.

    class Student extends Person {
    private int[] testScores;

    /*  
    *   Class Constructor
    *   
    *   @param firstName - A string denoting the Person's first name.
    *   @param lastName - A string denoting the Person's last name.
    *   @param id - An integer denoting the Person's ID number.
    *   @param scores - An array of integers denoting the Person's test scores.
    */
    public Student(String firstName, String lastName, int id, int [] scores) {
        super(firstName, lastName, id);
        testScores = scores;
    }

    /*  
    *   Method Name: calculate
    *   @return A character denoting the grade.
    */
    public char calculate() {
        double average = 0;
        for (int score : testScores) {
            average += score;
        }
        average /= testScores.length;
        
        if  (average >= 90) {
            return 'O';
        } else if (average >= 80) {
            return 'E';
        } else if (average >= 70) {
            return 'A';
        } else if (average >= 55) {
            return 'P';
        } else if (average >= 40) {
            return 'D';
        } else {
            return 'T';
        }
    }
}

  • daiict_201501188
     + 0 comments

    CPP solution 

    class Student :  public Person{
	private:
		vector<int> testScores;  
	public:
     
           Student(string firstName, string lastName,int identification,vector<int> scores)
                :Person(firstName,lastName,identification){
                this->testScores=scores;
            }
       
     char calculate(){
        int sum=0;
        for(int i=0;i<testScores.size();i++){
            sum+=testScores[i];
        }
        int avg=sum/testScores.size();
         if(90<=avg && avg<=100){
            return 'O';
        }else if(80<=avg && avg<90){
            return 'E';
        }else if(70<=avg && avg<80){
            return 'A';
        }else if(55<=avg && avg<70){
            return 'P';
        }else if(40<=avg && avg<55){
            return 'D';
         }else {
            return 'T';
        } 
    }
};

  • Kanahaiya
     + 0 comments

    Here is my wokring solution in java-

    class Student extends Person{
	private int[] testScores;

    /*	
    *   Class Constructor
    *   
    *   @param firstName - A string denoting the Person's first name.
    *   @param lastName - A string denoting the Person's last name.
    *   @param id - An integer denoting the Person's ID number.
    *   @param scores - An array of integers denoting the Person's test scores.
    */
    // Write your constructor here
    Student(String firstName,String lastName,int id,int[] scores){
        super(firstName,lastName,id);
        this.testScores=scores;
    }

    /*	
    *   Method Name: calculate
    *   @return A character denoting the grade.
    */
    // Write your method here
    public char calculate(){
        int sum=0;
        for(int i=0;i<testScores.length;i++){
            sum+=testScores[i];
        }
        int avg=sum/testScores.length;
         if(90<=avg && avg<=100){
            return 'O';
        }else if(80<=avg && avg<90){
            return 'E';
        }else if(70<=avg && avg<80){
            return 'A';
        }else if(55<=avg && avg<70){
            return 'P';
        }else if(40<=avg && avg<55){
            return 'D';
         }else {
            return 'T';
        } 
    }
}