What will be printed when this Java code simulates a use case step?

What will be printed when this Java code simulates a use case step?

public class UseCase {
  public static void main(String[] args) {
    int result = calculateSum(5, 10);
    System.out.println(result);
  }
  public static int calculateSum(int a, int b) {
    return a + b;
  }
}