Java String format double type

public class Main {
  public static void main(String[] args) {
    double number = -12345.25f;
    String numberAsString = String.format ("%f", number);
    System.out.println(numberAsString);
    System.out.println(String.format ("%.1f", number));
    System.out.println(String.format ("%.2f", number));
    System.out.println(String.format ("%.3f", number));
    /*from  www. j ava2  s  . com*/

  }
}