Java DecimalFormat

External

• http://docs.oracle.com/javase/7/docs/api/java/text/DecimalFormat.html

Internal

• java Format
• SimpleDateFormat
• String.format()

!!!Overview

'#' means display the digit if ? It does not fill up with space.

!!!Simplest

{{{

   private static final Format THREAD_NUMBER_FORMAT = new DecimalFormat("000");

   ...

   THREAD_NUMBER_FORMAT.format(index);

}}}

!!!Float/Double with Two Decimals

{{{

   private static final Format AVERAGE_DURATION_FORMAT = new DecimalFormat("#.00");

   ...

   AVERAGE_DURATION_FORMAT.format(value);

}}}

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