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## org.jfree.chart.util
Class HexNumberFormat

    java.lang.Object
      java.text.Format
          java.text.NumberFormat
              org.jfree.chart.util.HexNumberFormat

All Implemented Interfaces:
  java.io.Serializable, java.lang.Cloneable

    public class HexNumberFormat

extends java.text.NumberFormat

A custom number formatter that formats numbers as hexadecimal strings. There are some limitations, so be careful using this class.

Since:
  1.0.6
See Also:
  Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.text.NumberFormat
`java.text.NumberFormat.Field`

Field Summary
`static int` | `BYTE` Number of hexadecimal digits for a byte.
`static int` | `DWORD` Number of hexadecimal digits for a double word.
`static int` | `QWORD` Number of hexadecimal digits for a quad word.
`static int` | `WORD` Number of hexadecimal digits for a word.

Fields inherited from class java.text.NumberFormat
`FRACTION_FIELD, INTEGER_FIELD`

Constructor Summary
`HexNumberFormat()` Creates a new instance with 8 digits.
`HexNumberFormat(int digits)` Creates a new instance with the specified number of digits.

Method Summary
`java.lang.StringBuffer` | `format(double number, java.lang.StringBuffer toAppendTo, java.text.FieldPosition pos)` Formats the specified number as a hexadecimal string.
`java.lang.StringBuffer` | `format(long number, java.lang.StringBuffer toAppendTo, java.text.FieldPosition pos)` Formats the specified number as a hexadecimal string.
`int` | `getNumberOfDigits()` Returns the number of digits.
`java.lang.Number` | `parse(java.lang.String source, java.text.ParsePosition parsePosition)` Parsing is not implemented, so this method always returns `null`.
`void` | `setNumberOfDigits(int digits)` Sets the number of digits.

Methods inherited from class java.text.NumberFormat
`clone, equals, format, format, format, getAvailableLocales, getCurrency, getCurrencyInstance, getCurrencyInstance, getInstance, getInstance, getIntegerInstance, getIntegerInstance, getMaximumFractionDigits, getMaximumIntegerDigits, getMinimumFractionDigits, getMinimumIntegerDigits, getNumberInstance, getNumberInstance, getPercentInstance, getPercentInstance, getRoundingMode, hashCode, isGroupingUsed, isParseIntegerOnly, parse, parseObject, setCurrency, setGroupingUsed, setMaximumFractionDigits, setMaximumIntegerDigits, setMinimumFractionDigits, setMinimumIntegerDigits, setParseIntegerOnly, setRoundingMode`

Methods inherited from class java.text.Format
`format, formatToCharacterIterator, parseObject`

Methods inherited from class java.lang.Object
`finalize, getClass, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### BYTE

    public static final int BYTE

  Number of hexadecimal digits for a byte.

  See Also:
    Constant Field Values

### WORD

    public static final int WORD

  Number of hexadecimal digits for a word.

  See Also:
    Constant Field Values

### DWORD

    public static final int DWORD

  Number of hexadecimal digits for a double word.

  See Also:
    Constant Field Values

### QWORD

    public static final int QWORD

  Number of hexadecimal digits for a quad word.

  See Also:
    Constant Field Values

Constructor Detail

### HexNumberFormat

    public HexNumberFormat()

  Creates a new instance with 8 digits.

### HexNumberFormat

    public HexNumberFormat(int digits)

  Creates a new instance with the specified number of digits.

  Parameters:
    `digits` - the digits.

Method Detail

### getNumberOfDigits

    public final int getNumberOfDigits()

  Returns the number of digits.

  Returns:
    The number of digits.

### setNumberOfDigits

    public void setNumberOfDigits(int digits)

  Sets the number of digits.

  Parameters:
    `digits` - the number of digits.

### format

    public java.lang.StringBuffer format(double number,
                                         java.lang.StringBuffer toAppendTo,
                                         java.text.FieldPosition pos)

  Formats the specified number as a hexadecimal string. The decimal fraction is ignored.

  Specified by:
    `format` in class `java.text.NumberFormat`
  Parameters:
    `number` - the number to format.
    `toAppendTo` - the buffer to append to (ignored here).
    `pos` - the field position (ignored here).
  Returns:
    The string buffer.

### format

    public java.lang.StringBuffer format(long number,
                                         java.lang.StringBuffer toAppendTo,
                                         java.text.FieldPosition pos)

  Formats the specified number as a hexadecimal string. The decimal fraction is ignored.

  Specified by:
    `format` in class `java.text.NumberFormat`
  Parameters:
    `number` - the number to format.
    `toAppendTo` - the buffer to append to (ignored here).
    `pos` - the field position (ignored here).
  Returns:
    The string buffer.

### parse

    public java.lang.Number parse(java.lang.String source,
                                  java.text.ParsePosition parsePosition)

  Parsing is not implemented, so this method always returns `null`.

  Specified by:
    `parse` in class `java.text.NumberFormat`
  Parameters:
    `source` - ignored.
    `parsePosition` - ignored.
  Returns:
    Always `null`.

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