日期格式中月份和日期的固定长度？

发布于 2024-11-17 10:05:34 字数 160 浏览 1 评论 0原文

有没有什么方法可以将日期对象格式化为固定长度的日和月，以便在列中良好对齐？例如：

15 May      2010
10 January  2010

而不是

15 May 2010
10 January 2010

谢谢！

原文

Is there any way to format Date object to made fixed length of Day and Month in order to have good alignment in a column?
For example:

15 May      2010
10 January  2010

Instead of

15 May 2010
10 January 2010

Thanks!

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゛时过境迁 2024-11-24 10:05:34

查看 java.util.Formatter 类，其 format 方法与 String.format(...) 相同，与 System.out.printf 类似。

例如：

import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;

public class FormatDateCalendar {
   public static final String FORMAT_STRING = "%1$-3td %1$-9tB %1$tY";
   public static void main(String[] args) {
      Calendar c1 = new GregorianCalendar(2011, Calendar.FEBRUARY, 3);
      Calendar c2 = new GregorianCalendar(2010, Calendar.MAY, 15);
      Date today = new Date();

      System.out.printf(FORMAT_STRING + "%n", c1);
      System.out.printf(FORMAT_STRING + "%n", c2);
      System.out.printf(FORMAT_STRING + "%n", today);
   }
}

Have a look at the java.util.Formatter class whose format method is the same as String.format(...) and similar to System.out.printf.

For example:

import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;

public class FormatDateCalendar {
   public static final String FORMAT_STRING = "%1$-3td %1$-9tB %1$tY";
   public static void main(String[] args) {
      Calendar c1 = new GregorianCalendar(2011, Calendar.FEBRUARY, 3);
      Calendar c2 = new GregorianCalendar(2010, Calendar.MAY, 15);
      Date today = new Date();

      System.out.printf(FORMAT_STRING + "%n", c1);
      System.out.printf(FORMAT_STRING + "%n", c2);
      System.out.printf(FORMAT_STRING + "%n", today);
   }
}

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