/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;
import java.text.*;


/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		System.out.println("Assuming US Locale: ',' as thousand separator, '.' as decimal separator)");
		
    	NumberFormat nf = new DecimalFormat("#,##0.0##");
		System.out.println("\n==============================");
    	System.out.println("With Format (#,##0.0##) ");
		System.out.println("------------------------------");
    	System.out.println("1234.0 = " + nf.format(1234.0));
    	System.out.println("123.4  = " + nf.format(123.4));
    	System.out.println("12.34  = " + nf.format(12.34));
    	System.out.println("1.234  = " + nf.format(1.234));
		System.out.println("==============================");

    	nf = new DecimalFormat("#,000.000");
    	System.out.println("\n==============================");
    	System.out.println("With Format (#,000.000) ");
    	System.out.println("------------------------------");
    	System.out.println("1234.0 = " + nf.format(1234.0));
    	System.out.println("123.4  = " + nf.format(123.4));
    	System.out.println("12.34  = " + nf.format(12.34));
    	System.out.println("1.234  = " + nf.format(1.234));
		System.out.println("==============================");
	}
}