java calendar add times

/**
 * @author lautturi.com
 * Java example: adding 10 minutes to current time in java
 */
import java.util.*;
import java.text.ParseException;
import java.text.SimpleDateFormat;

public class Lautturi {

	public static void main(String[] args) throws ParseException {

		 String myTime = "18:10";
		 SimpleDateFormat df = new SimpleDateFormat("HH:mm");
		 Date d = df.parse(myTime); 
		 Calendar cal = Calendar.getInstance();
		 cal.setTime(d);
		 cal.add(Calendar.MINUTE, 10);
		 String newTime = df.format(cal.getTime());
		 
		 System.out.println(newTime);

	}
}

output:

18:20