Set Calendar to Mid night

import java.util.Calendar;

public class Main {
  public static void main(String[] argv) {

  }

  public Calendar toMidnight() {
    Calendar cal = Calendar.getInstance();
    cal.set(Calendar.HOUR_OF_DAY, 0);
    cal.set(Calendar.MINUTE, 0);
    cal.set(Calendar.SECOND, 0);
    cal.set(Calendar.MILLISECOND, 0);

    return cal;
  }
}