محاولتي في برنامج Time Calculator

public class CH3PR32 {


/**
* @param args
*/
public static void main(String[ ] args) {
// TODO Auto-generated method stub

{System.out.println("Welcome to the Travel Time Calculator ");
Scanner sc = new Scanner(System.in);
String choice = "y";

while (choice.equalsIgnoreCase("y"))

System.out.println("Enter distance");
double miles = sc.nextDouble();
System.out.println("Enter speed");
double speed = sc.nextDouble();
System.out.println("Expected travaling time");
System.out.println(" H : " + (int) (miles/ speed ));

System.out.println();
System.out.println("Continue? (y/n) :");
choice = sc.next();

}


}



// TODO Auto-generated method stub
}

import java.util.Scanner;