format numbers

java.text.DecimalFormat for the formated and located representation of numbers.

BigDecimal wert = 12.3;
System.out.println(new DecimalFormat("#.##").format(value));         // 12.3
System.out.println(new DecimalFormat("0.00 €").format(value));       // 12.30 €
System.out.println(new DecimalFormat("0000.00").format(value));	    // 0012.30