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Day 12: Inheritance Hackerrank Solution Java

 Day 12: Inheritance Hackerrank Solution Java

For Explanation:


Sample Input

Heraldo Memelli 8135627
2
100 80

Sample Output

 Name: Memelli, Heraldo
 ID: 8135627
 Grade: O
Code:
import java.util.*;

class Person {
    protected String firstName;
    protected String lastName;
    protected int idNumber;
    
    // Constructor
    Person(String firstName, String lastName, int identification){
        this.firstName = firstName;
        this.lastName = lastName;
        this.idNumber = identification;
    }
    
    // Print person data
    public void printPerson(){
         System.out.println(
                "Name: " + lastName + ", " + firstName 
            +   "\nID: " + idNumber); 
    }
     
}

class Student extends Person{
    private int[] testScores;

    Student(String firstName,String lastName,int idNumber,int[] scores){
        super(firstName,lastName,idNumber);
        this.testScores = scores;
    }
    // Write your constructor here
    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<90 && avg>=80){
           return 'E';
       }else if(avg<80 && avg>=70){
           return 'A';
       }else if(avg<70 && avg>=55){
           return 'P';
       }else if(avg<55 && avg>=40){
           return 'D';
       }else if(avg<40){
           return 'T';
       }
       return 'd';
    }

}

class Solution {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String firstName = scan.next();
        String lastName = scan.next();
        int id = scan.nextInt();
        int numScores = scan.nextInt();
        int[] testScores = new int[numScores];
        for(int i = 0; i < numScores; i++){
            testScores[i] = scan.nextInt();
        }
        scan.close();
        
        Student s = new Student(firstName, lastName, id, testScores);
        s.printPerson();
        System.out.println("Grade: " + s.calculate() );
    }
}

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