NumberFormat is the abstract parent class for all the number formats. This class provides methods for formatting and parsing the numbers. Also it provides methods for finding locales for the number formats. It has the direct subclasses:
- ChoiceFormat and
- DecimalFormat
Look at the below example for the different number formats. Here I have used the DecimalFormat class for formatting the numbers.
package javabeat.net.text; import java.text.DecimalFormat; import java.text.NumberFormat; /** * Format number with number format example * @author krishna * */ public class NumberFormatExample { public static void main(String[] args) { NumberFormat numberFormatter; String number; // Two decimal points numberFormatter = new DecimalFormat("0.00"); number = numberFormatter.format(1234); System.out.println(number); // One decimal points numberFormatter = new DecimalFormat("0.0"); number = numberFormatter.format(1234); System.out.println(number); // Two decimal points with nagative symbol numberFormatter = new DecimalFormat("-0.00"); number = numberFormatter.format(1234); System.out.println(number); // Two decimal points with dollar ($) symbol numberFormatter = new DecimalFormat("$0.00"); number = numberFormatter.format(1234); System.out.println(number); // Format of currency display with commas numberFormatter = new DecimalFormat("$0,00,000"); number = numberFormatter.format(1234567); System.out.println(number); } }
Output
1234.00 1234.0 -1234.00 $1234.00 $1,234,567
The above example shows the various formatting display with the NumberFormat object.