Java DecimalFormat

/**
 * @author lautturi.com
 * Java example: Java DecimalFormat example: how to set accuracy of Decimal 
 */

import java.util.*;
import java.text.DecimalFormat;
import java.time.LocalDate;
import java.time.format.DateTimeFormatter;

public class Lautturi {
	public static void main(String[] args) {
		
		String pattern1="###,###.00";
		DecimalFormat df1 = new DecimalFormat(pattern1);
		System.out.println(df1.format(1033.141592653));
		
		String pattern2 = "###,###.###";
		DecimalFormat df2 = new DecimalFormat(pattern2);
		System.out.println(df2.format(7891236.14157));

		
	}
}

output:

1,033.14
7,891,236.142