Java 格式化时间显示月名2

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

public class HelloWorld {
   public static void main(String[] args) {
      SimpleDateFormat f = new SimpleDateFormat("MMM");
      SimpleDateFormat f1 = new SimpleDateFormat("dd");
      SimpleDateFormat f2 = new SimpleDateFormat("a");
      int h;

      if(Calendar.getInstance().get(Calendar.HOUR)==0)h = 12;
      else h = Calendar.getInstance().get(Calendar.HOUR);

      String filename="Current Date is :"
         +f1.format(new Date())
         +f.format(new Date())
         +h+f2.format(new Date());
      System.out.println(filename);
   }
}