We would like to know how to round number to fewer decimals.
import java.text.DecimalFormat; // w w w . java2 s . com public class Main { public static void main(String[] args) { double numberToRound = 12345.6789; DecimalFormat df = new DecimalFormat("0.000"); System.out.println("Rounded number = " + df.format(numberToRound)); System.out.println(String.format("Rounded number = %.3f", numberToRound)); } }
The code above generates the following result.