숫자와 통화 Formatting

• NumberFormat
  .getInstance()
  .getNumberInstance()
  .getIntegerInstance()
  .getCurrencyInstance()
  .getPercentInstance()
  .setMinimumFractionDigits()
  .setMinimumIntegerDigits()
  .format()

double number=86400.1234;
NumberFormat formatter = NumberFormat.getInstance(Locale.KOREA);
formatter.setMinimumFractionDigits(10);
formatter.setMinimumIntegerDigits(10);
String result = formatter.format(number);

• DecimalFormat -> NumberFormat

double number = 1234.5678;
String pattern = "#,##0.00;(#,##0.00)";
DecimalFormat format = new DecimalFormat(pattern);
String result = format.format(number);