Field Detail

• NASTY_SMALL_DOUBLE

  public static final String NASTY_SMALL_DOUBLE

  Textual representation of a double constant that can cause nasty problems with JDK (see http://www.exploringbinary.com/java-hangs-when-converting-2-2250738585072012e-308).

  See Also:

  Constant Field Values

Constructor Detail

• NumberInput

  public NumberInput()

Method Detail

• parseInt

  public static int parseInt(char[] digitChars,
             int offset,
             int len)

  Fast method for parsing integers that are known to fit into regular 32-bit signed int type. This means that length is between 1 and 9 digits (inclusive)

  Note: public to let unit tests call it

• parseInt

  public static int parseInt(String str)

  Helper method to (more) efficiently parse integer numbers from String values.

• parseLong

  public static long parseLong(char[] digitChars,
               int offset,
               int len)

• parseLong

  public static long parseLong(String str)

• inLongRange

  public static boolean inLongRange(char[] digitChars,
                    int offset,
                    int len,
                    boolean negative)

  Helper method for determining if given String representation of an integral number would fit in 64-bit Java long or not. Note that input String must NOT contain leading minus sign (even if 'negative' is set to true).

  Parameters:

  negative - Whether original number had a minus sign (which is NOT passed to this method) or not

• inLongRange

  public static boolean inLongRange(String numberStr,
                    boolean negative)

  Similar to inLongRange(char[],int,int,boolean), but with String argument

  Parameters:

  negative - Whether original number had a minus sign (which is NOT passed to this method) or not

• parseAsInt

  public static int parseAsInt(String input,
               int defaultValue)

• parseAsLong

  public static long parseAsLong(String input,
                 long defaultValue)

• parseAsDouble

  public static double parseAsDouble(String input,
                     double defaultValue)

• parseDouble

  public static double parseDouble(String numStr)
                            throws NumberFormatException

  Throws:

  NumberFormatException