Package uk.ac.starlink.ttools.func

Class Formats

java.lang.Object
uk.ac.starlink.ttools.func.Formats
public class Formats extends Object
Functions for formatting numeric values.
Since:
2 Sep 2004
Author:
Mark Taylor (Starlink)

  • Method Details

    • formatDecimal

      public static String formatDecimal(double value, int dp)
      Turns a floating point value into a string with a given number of decimal places using standard settings.
      Parameters:
      value - value to format
      dp - number of decimal places (digits after the decmal point)
      Returns:
      formatted string
      Examples:
      formatDecimal(PI,0) = "3.", formatDecimal(0,10) = ".0000000000", formatDecimal(E*10,3) = "27.183"

    • formatDecimalLocal

      public static String formatDecimalLocal(double value, int dp)
      Turns a floating point value into a string using current locale settings. For instance if language is set to French, decimal points will be represented as a comma "," instead of a full stop ".". Otherwise behaves the same as the corresponding formatDecimal function.
      Parameters:
      value - value to format
      dp - number of decimal places (digits after the decmal point)
      Returns:
      formatted string
      Examples:
      formatDecimal(PI,0) = "3,", formatDecimal(0,10) = ",0000000000", formatDecimal(E*10,3) = "27,183"

    • formatDecimal

      public static String formatDecimal(double value, String format)
      Turns a floating point value into a formatted string using standard settings. The format string is as defined by Java's java.text.DecimalFormat class.
      Parameters:
      value - value to format
      format - format specifier
      Returns:
      formatted string
      Examples:
      formatDecimal(99, "#.000") = "99.000", formatDecimal(PI, "+0.##;-0.##") = "+3.14"

    • formatDecimalLocal

      public static String formatDecimalLocal(double value, String format)
      Turns a floating point value into a formatted string using current locale settings. For instance if language is set to French, decimal points will be represented as a comma "," instead of a full stop ".". Otherwise behaves the same as the corresponding formatDecimal function.
      Parameters:
      value - value to format
      format - format specifier
      Returns:
      formatted string
      Examples:
      formatDecimal(99, "#.000") = "99,000", formatDecimal(PI, "+0.##;-0.##") = "+3,14"