如何将LocalDate对象格式化为MM / dd / yyyy，并且格式保持不变 [英] How to format LocalDate object to MM/dd/yyyy and have format persist

问题描述

我正在读取文本并将日期存储为LocalDate变量。

有没有什么办法可以保留DateTimeFormatter的格式，所以当我调用LocalDate变量时，它仍然是这种格式。

编辑：我希望parsedDate被存储在25/09/2016的正确格式，而不是打印为字符串

我的代码：

  public static void main（String [] args）
 {
 LocalDate date = LocalDate.now （）; 
 DateTimeFormatter formatters = DateTimeFormatter.ofPattern（d / MM / uuuu）; 
 String text = date.format（formatters）; 
 LocalDate parsedDate = LocalDate.parse（text，formatters）; 
 
 System.out.println（date：+ date）; // date：2016-09-25 
 System.out.println（Text format+ text）; //文本格式25/09/2016 
 System.out.println（parsedDate：+ parsedDate）; // parsedDate：2016-09-25 
 
 //我想将LocalDate parsedDate存储为25/09/2016 
} 
  < /编辑：考虑到你的编辑，只需设置parsedDate等于你的格式化文本字符串，如下所示：
 
 
  parsedDate = text; 
  
 
 
 
 
 
 
 LocalDate对象只能打印在ISO8601格式（yyyy-MM-dd）。为了以其他格式打印对象，需要格式化它，并将LocalDate保存为字符串，就像你在自己的例子中演示的那样。
 
 
  DateTimeFormatter formatters = DateTimeFormatter.ofPattern（d / MM / uuuu）; 
 String text = date.format（formatters）; 
  
 
I am reading text and storing the dates as LocalDate variables. 

Is there any way for me to preserve the formatting from DateTimeFormatter so that when I call the LocalDate variable it will still be in this format.

EDIT:I want the parsedDate to be stored in the correct format of 25/09/2016 rather than printing as a string

My code:
public static void main(String[] args) 
{
    LocalDate date = LocalDate.now();
    DateTimeFormatter formatters = DateTimeFormatter.ofPattern("d/MM/uuuu");
    String text = date.format(formatters);
    LocalDate parsedDate = LocalDate.parse(text, formatters);

    System.out.println("date: " + date); // date: 2016-09-25
    System.out.println("Text format " + text); // Text format 25/09/2016
    System.out.println("parsedDate: " + parsedDate); // parsedDate: 2016-09-25

    // I want the LocalDate parsedDate to be stored as 25/09/2016
}

解决方案
EDIT:  Considering your edit, just set parsedDate equal to your formatted text string, like so:
parsedDate = text;




A LocalDate object can only ever be printed in ISO8601 format (yyyy-MM-dd).  In order to print the object in some other format, you need to format it and save the LocalDate as a string like you've demonstrated in your own example
DateTimeFormatter formatters = DateTimeFormatter.ofPattern("d/MM/uuuu");
String text = date.format(formatters);


                        
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