java-Exercise05-final course grade

package class170619;

import java.util.Scanner;

public class tester05 {

    public static void main(String[] args) {
        /*
         * בהינתן ציון המבחן של הסטודנט (X), מספר המטלות שהוגשו (N) וממוצע
         * המטלות שהוגשו (Y), יש לחשב את ציונו הסופי של הסטודנט
         */

        int testGrade; // input: grade of the test
        int tasksNo; // input: number of tasks
        double tasksAverage; // input: average grade for home work tasks
        double finalGrade; // output: final grade for the course

        // create a scanner to get input data
        Scanner s = new Scanner(System.in);

        // get all input data from user and save it to variables
        System.out.println("Enter your test grade (0 to 100): ");
        testGrade = s.nextInt();
        System.out.println("Enter number of home work tasks: ");
        tasksNo = s.nextInt();
        System.out
                .println("Enter average grade from home work tasks (0 to 100): ");
        tasksAverage = s.nextDouble();

        s.close();

        // calculate final grade
        switch (tasksNo) {
        case 0:
        case 1:
        case 2:
        case 3:
        case 4:
            finalGrade = testGrade;
            break;
        case 5:
        case 6:
        case 7:
            finalGrade = testGrade >= 60 ? 0.8 * testGrade + 0.2 * tasksAverage
                    : 0.9 * testGrade + .01 * tasksAverage;
            break;
        default:
            finalGrade = testGrade >= 60 ? 0.7 * testGrade + 0.3 * tasksAverage
                    : 0.6 * testGrade + 0.4 * tasksAverage;
            break;
        }

        // print final grade to screen, with one digit after the point
        System.out.printf("your final grade is: %.1f", finalGrade);

    }

}