日期時間tostring（）方法返回不同的值java

Question

我正在使用JodaTime API進行日期時間計算。而且，當我在控制檯上只打印DateTime時，它正確打印。但是當我使用.toString（）方法;它是worng;日期正在改變。

這是代碼

public static void main(String[] args) { 


     int[] startHour= {11, 0}; 
     int[] endtHour= {13, 0}; 
     DateTimeZone dtZoneforUser = DateTimeZone.forID("America/New_York"); 
     DateTime dtNow = DateTime.now(dtZoneforUser); 

     DateTime dtTimeWindowStart = new DateTime(dtNow.getYear(),dtNow.getMonthOfYear(),dtNow.dayOfMonth().get(),startHour[0],startHour[1],dtZoneforUser); 
     DateTime dtTimeWindowEnd = new DateTime(dtNow.getYear(),dtNow.getMonthOfYear(),dtNow.dayOfMonth().get(),endtHour[0],endtHour[1],dtZoneforUser); 

     List<String> lstAudio = new ArrayList<String>(); 
     lstAudio.add("1"); 
     lstAudio.add("2"); 
     lstAudio.add("3"); 
     lstAudio.add("4"); 
     lstAudio.add("5"); 
     lstAudio.add("6"); 
     lstAudio.add("7"); 
     lstAudio.add("8"); 
     lstAudio.add("9"); 
     lstAudio.add("10"); 
     lstAudio.add("11"); 
     lstAudio.add("12"); 
     lstAudio.add("13"); 

     List<String> lstOfTimeToPlay = new ArrayList<String>(); 
     int[] randomNumber = { 46, 71, 41, 68, 58, 104, 47, 76, 46, 38, 71, 42, 52 }; 
     DateTime recurringStartingTime = dtTimeWindowStart; 
     DateTime recurringEndTime = dtTimeWindowEnd; 
     List<String> timeToPlay = new ArrayList<String>(); 
     int daysCounter = 0; 
     String pattern1 = "yyyy-MM-dd'T'HH:mm:ss"; 
     DateTimeFormatter dtf = DateTimeFormat.forPattern(pattern1).withZone(dtZoneforUser); 

     for (int j = 0; j< 13; j++) { 
      int randomNum = randomNumber[j]; 

      DateTime tempTime = recurringStartingTime.plusMinutes(randomNum); 
      recurringStartingTime = tempTime; 

      System.out.println(randomNum); 

      if (tempTime.isBefore(recurringEndTime)) 
       { 
        System.out.println("Audio Id is "+j + " and the play time is "+tempTime); 
       lstOfTimeToPlay.add(tempTime.withZone(dtZoneforUser).toString()); 
       }else { 
        daysCounter +=1; 
        recurringStartingTime = dtTimeWindowStart.plusDays(daysCounter).plusMinutes(randomNum); 
        recurringEndTime = dtTimeWindowEnd.plusDays(daysCounter); 
        System.out.println("Audio Id is "+j + " and the play time is "+recurringStartingTime); 
        lstOfTimeToPlay.add(tempTime.withZone(dtZoneforUser).toString()); 
       } 

     } 

     for (String string : lstOfTimeToPlay) { 
     System.out.println(string); 
     } 

輸出是 - 這是正確的O/P。

Audio Id is 0 and the play time is 2014-01-16T11:46:00.000-05:00 
Audio Id is 1 and the play time is 2014-01-16T12:57:00.000-05:00 
Audio Id is 2 and the play time is 2014-01-17T11:41:00.000-05:00 
Audio Id is 3 and the play time is 2014-01-17T12:49:00.000-05:00 
Audio Id is 4 and the play time is 2014-01-18T11:58:00.000-05:00 
Audio Id is 5 and the play time is 2014-01-19T12:44:00.000-05:00 
Audio Id is 6 and the play time is 2014-01-20T11:47:00.000-05:00 
Audio Id is 7 and the play time is 2014-01-21T12:16:00.000-05:00 
Audio Id is 8 and the play time is 2014-01-22T11:46:00.000-05:00 
Audio Id is 9 and the play time is 2014-01-22T12:24:00.000-05:00 
Audio Id is 10 and the play time is 2014-01-23T12:11:00.000-05:00 
Audio Id is 11 and the play time is 2014-01-23T12:53:00.000-05:00 
Audio Id is 12 and the play time is 2014-01-24T11:52:00.000-05:00 

**This is List output (toString method() called)** 
2014-01-16T11:46:00.000-05:00 
2014-01-16T12:57:00.000-05:00 
2014-01-16T13:38:00.000-05:00 
2014-01-17T12:49:00.000-05:00 
2014-01-17T13:47:00.000-05:00 
2014-01-18T13:42:00.000-05:00 
2014-01-19T13:31:00.000-05:00 
2014-01-20T13:03:00.000-05:00 
2014-01-21T13:02:00.000-05:00 
2014-01-22T12:24:00.000-05:00 
2014-01-22T13:35:00.000-05:00 
2014-01-23T12:53:00.000-05:00 
2014-01-23T13:45:00.000-05:00 

在這個名單上面有三個出現在1月16日，應該是僅有的兩個按照上述名單。請建議。

謝謝

Answer 1

你能發現區別嗎？

您的代碼：

System.out.println("Audio Id is "+j + " and the play time is "+recurringStartingTime); 
lstOfTimeToPlay.add(tempTime.withZone(dtZoneforUser).toString()); 

你大概的意思：

System.out.println("Audio Id is "+j + " and the play time is "+recurringStartingTime); 
lstOfTimeToPlay.add(recurringStartingTime.withZone(dtZoneforUser).toString());