Formatter Field Width « Development « Java Tutorial

6.7.Formatter Field Width
6.7.1.Specifying a Minimum Field Width
6.7.2.The minimum field width specifier by applying it to the %f conversion
6.7.3.To produce tables with the columns lining up
6.7.4.Format to 2 decimal places in a 16-character field
6.7.5.Displaying at most 15 characters in a string
6.7.6.Limit the number of decimal digits by specifying the precision