关于java获取时间 new Date（），显示“上午、下午”

package d6;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
public class Lyx {
    public static void main(String[] args) {
      Date date = new Date();
      SimpleDateFormat dateFormat   = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss ");
      SimpleDateFormat dateFormat2  = new SimpleDateFormat("yyyy-MM-dd aa HH:mm:ss ",Locale.ENGLISH);
      SimpleDateFormat dateFormat3  = new SimpleDateFormat("yyyy-MM-dd aa hh:mm:ss ",Locale.CHINESE);
      SimpleDateFormat djrq = new SimpleDateFormat("yyyy-MM-dd");
      System.out.println("djrq:          "+djrq.format(new Date()));
      System.out.println("dateFormat:    "+dateFormat.format(date));
      System.out.println("dateFormat2:   "+dateFormat2.format(date));
      System.out.println("dateFormat3:   "+dateFormat3.format(date));
      SimpleDateFormat djrq2 = new SimpleDateFormat();
      System.out.println("无任何操作时间:    "+djrq2.format(date));
      System.out.println("无任何操作时间2:    "+new Date());
    }
}