import java.time.temporal.ChronoField;

​

public class prog {

    public static void main(String[] args){

        LocalTime present = LocalTime.now();

        String ampm;

        if (present.get(ChronoField.AMPM_OF_DAY) == 0) {

            ampm = "오전";

        } else {

            ampm = "오후";

        }

        System.out.println("지금은 " + ampm + " " + present.get(ChronoField.HOUR_OF_AMPM) + "시입니다.");

    }

}