import java.io.PrintWriter; import java.util.Calendar; public class TheTime { public static void main(String[] args) { PrintWriter writer = new PrintWriter(System.out, true); output(writer); writer.flush(); writer.close(); } public static void output(PrintWriter out) { Calendar calendar = Calendar.getInstance(); int hour = calendar.get(Calendar.HOUR_OF_DAY); } } calendar.getTime() hour < 12 12 <= hour && hour < 18 18 <= hour