java)칼로리 구하기 클래스로 구현

package calory;

public class cal {
    private static double walkcal(int oneDayWalk) {
        // 1걸음에 5000칼로리, 하루동안 5000걸음 총 소모량은?
        double oneStepCal = 0.02;
        double oneDayCal = oneStepCal * oneDayWalk;
        System.out.println(oneDayCal);
        return oneDayWalk;
    }

    public static void main(String[] args) {

        walkcal(5000);
    }