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  1. Prepare
  2. Tutorials
  3. 30 Days of Code
  4. Day 12: Inheritance
  5. Discussions

Day 12: Inheritance

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1176 Discussions

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  • kavib9345
     + 0 comments
    class Student extends Person{
	private int[] testScores;
    Student(String firstname,String lastname,int id,int testScores[]){
       super(firstname,lastname,id);
        this.testScores=testScores;
    }
    public char calculate(){
        int sum=0;
        for(int i=0;i<testScores.length;i++){
            sum=sum+testScores[i];
        }
        int avg=sum/testScores.length;
        if(avg>=90 && avg<=100) return 'O';
        else if(avg>=80 && avg<90) return 'E';
        else if(avg>=70 && avg<80) return 'A';
        else if(avg>=55 && avg<70) return 'P';
        else if(avg>=40 && avg<55) return 'D';
        else return 'T';
    }
}

  • omshisen795
     + 0 comments

    class Person: def init(self, firstName, lastName, idNumber): self.firstName = firstName self.lastName = lastName self.idNumber = idNumber def printPerson(self): print("Name:", self.lastName + ",", self.firstName) print("ID:", self.idNumber)

    class Student(Person): def init(self, firstName, lastName, idNumber, scores): self.firstName = firstName self.lastName = lastName self.idNumber = idNumber self.scores = scores

    def calculate(self):
    sum = 0
    for score in self.scores:
        sum += score

    avg = sum / len(self.scores)
    if avg <= 100 and avg >= 90:
        return "O"
    elif avg < 90 and avg >= 80:
        return "E"
    elif avg < 80 and avg >= 70:
        return "A"
    elif avg < 70 and avg >= 55:
        return "P"
    elif avg < 55 and avg >= 40:
        return "D"
    else:
        return "T"

    line = input().split() firstName = line[0] lastName = line[1] idNum = line[2] numScores = int(input()) # not needed for Python scores = list( map(int, input().split()) ) s = Student(firstName, lastName, idNum, scores) s.printPerson() print("Grade:", s.calculate())

  • uk_hamzath
     + 0 comments

    Java Solution:

    Student(String fname, String lname, int id, int[] score){
        super(fname, lname, id);
        this.testScores = score;
    }

    char calculate(){
        int sum = 0;
        for(int i=0; i<testScores.length; i++){
            sum = sum +testScores[i];
        }
        int avg = sum/testScores.length;
        if(avg >= 90){
            return 'O';
        }else if(avg >= 80){
            return 'E';
        }else if(avg >= 70){
            return 'A';
        }else if(avg >= 55){
            return 'P';
        }else if(avg >= 40){
            return 'D';
        }else{
            return 'T';
        }
    }

  • parsanaderi2004
     + 1 comment

    any advice on my code? can you make it better or even shorter?

    Student class implementation with Python:

    class Student(Person):
    def __init__(self, firstName, lastName, idNumber, scores):
        self.firstName = firstName
        self.lastName = lastName
        self.idNumber = idNumber
        self.scores = scores

    def calculate(self):
        sum = 0
        for score in self.scores:
            sum += score
        
        avg = sum / len(self.scores)
        if avg <= 100 and avg >= 90:
            return "O"
        elif avg < 90 and avg >= 80:
            return "E"
        elif avg < 80 and avg >= 70:
            return "A"
        elif avg < 70 and avg >= 55:
            return "P"
        elif avg < 55 and avg >= 40:
            return "D"
        else:
            return "T"

  • namnika_janband1
     + 0 comments

    javascript 

    class Student extends Person {
    /*	
    *   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
    constructor(firstName, lastName, idNumber, testScores){
        super(firstName, lastName, idNumber)
        
        this.testScores = testScores
       
        
    }
    /*	
    *   Method Name: calculate
    *   @return A character denoting the grade.
    */
    // Write your method here
    
    calculate(){
         let avg = 0
         let sum = 0
        for(let i=0; i<this.testScores.length; i++){
             sum += this.testScores[i]
             avg  = sum / this.testScores.length
        }
        
        if(avg>=90 && avg <=100){
                return 'O'
                
            }else if(avg>=80 && avg<90){
                
                return 'E'
            }else if(avg>=70 && avg<80){
                
                return 'A'
            }else if(avg>=55 && avg<70){
                
                 return 'P'
            }else if(avg>=40 && avg<55){
                
                return 'D'
            }else if(avg<40){
                
                return 'T'
            }
        
    }
}