import java.text.NumberFormat; public class Main { public static void main(String args[]) { NumberFormat nf = NumberFormat.getInstance(); System.out.println("Default format: " + nf.format(1234567.678)); nf.setGroupingUsed(false); System.out.println("Format without groupings: " + nf.format(1234567.678)); } } /* Default format: 1,234,567.678 Format without groupings: 1234567.678 */