Package gnu.math

Class ExponentialFormat

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Cloneable
    public class ExponentialFormat
extends java.text.Format
    Format a real number using a floating-point format. However, if `general' is true, and the number "fits", use a fixed-point format (like printf %g). Used for Common Lisp specs ~E and ~G; also C-style %e and %g.
    See Also:
    Serialized Form

    • Nested Class Summary

      • Nested classes/interfaces inherited from class java.text.Format

        java.text.Format.Field

    • Field Summary

      Fields 
      Modifier and Type Field Description
      int expDigits
      Number of digits to show in the exponent.
      char exponentChar  
      boolean exponentShowSign
      Display sign of exponent even when it is non-negative.
      int fracDigits
      Number of fractional digits to show.
      boolean general  
      int intDigits
      Number of digits to show in the integer part of the result.
      char overflowChar  
      char padChar  
      boolean showPlus
      True if '+' should be printed for non-negative number.
      char style
      'L': Common Lisp style; 'P' C/Java printf-style.
      int width  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.StringBuffer format​(double value, java.lang.StringBuffer sbuf, java.text.FieldPosition fpos)  
      java.lang.StringBuffer format​(float value, java.lang.StringBuffer sbuf, java.text.FieldPosition fpos)  
      java.lang.StringBuffer format​(long num, java.lang.StringBuffer sbuf, java.text.FieldPosition fpos)  
      java.lang.StringBuffer format​(java.lang.Object num, java.lang.StringBuffer sbuf, java.text.FieldPosition fpos)  
      java.lang.Number parse​(java.lang.String text, java.text.ParsePosition status)  
      java.lang.Object parseObject​(java.lang.String text, java.text.ParsePosition status)  

      • Methods inherited from class java.text.Format

        clone, format, formatToCharacterIterator, parseObject

      • Methods inherited from class java.lang.Object

        equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • fracDigits

        public int fracDigits
        Number of fractional digits to show. This is `d' in the CommonLisp spec.

      • intDigits

        public int intDigits
        Number of digits to show in the integer part of the result. If positive, The number of digits before the decimal point. If negative, the -intDigits zeros are emitted after the decimal point. This is `k' in the CommonLisp spec.

      • expDigits

        public int expDigits
        Number of digits to show in the exponent. Zero means unspecified - show as many as needed.

      • overflowChar

        public char overflowChar

      • padChar

        public char padChar

      • exponentChar

        public char exponentChar

      • exponentShowSign

        public boolean exponentShowSign
        Display sign of exponent even when it is non-negative.

      • showPlus

        public boolean showPlus
        True if '+' should be printed for non-negative number.

      • general

        public boolean general

      • style

        public char style
        'L': Common Lisp style; 'P' C/Java printf-style. Used for fine points of printing 'g' style.

      • width

        public int width

    • Constructor Detail

      • ExponentialFormat

        public ExponentialFormat()

    • Method Detail

      • format

        public java.lang.StringBuffer format​(float value,
                                     java.lang.StringBuffer sbuf,
                                     java.text.FieldPosition fpos)

      • format

        public java.lang.StringBuffer format​(double value,
                                     java.lang.StringBuffer sbuf,
                                     java.text.FieldPosition fpos)

      • format

        public java.lang.StringBuffer format​(long num,
                                     java.lang.StringBuffer sbuf,
                                     java.text.FieldPosition fpos)

      • format

        public java.lang.StringBuffer format​(java.lang.Object num,
                                     java.lang.StringBuffer sbuf,
                                     java.text.FieldPosition fpos)
        Specified by:
        format in class java.text.Format

      • parse

        public java.lang.Number parse​(java.lang.String text,
                              java.text.ParsePosition status)

      • parseObject

        public java.lang.Object parseObject​(java.lang.String text,
                                    java.text.ParsePosition status)
        Specified by:
        parseObject in class java.text.Format