org.jfree.chart.util

Class HexNumberFormat

java.lang.Object

java.text.Format

java.text.NumberFormat

org.jfree.chart.util.HexNumberFormat

All Implemented Interfaces:

Serializable, Cloneable

public class HexNumberFormat
extends 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

NumberFormat.Field

Field Summary

Fields

Modifier and Type	Field and Description
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

Constructors

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

Method Summary

Modifier and Type	Method and Description
StringBuffer	format(double number, StringBuffer toAppendTo, FieldPosition pos) Formats the specified number as a hexadecimal string.
StringBuffer	format(long number, StringBuffer toAppendTo, FieldPosition pos) Formats the specified number as a hexadecimal string.
int	getNumberOfDigits() Returns the number of digits.
Number	parse(String source, 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

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 StringBuffer format(double number,
                           StringBuffer toAppendTo,
                           FieldPosition pos)

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

Specified by:

format in class 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 StringBuffer format(long number,
                           StringBuffer toAppendTo,
                           FieldPosition pos)

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

Specified by:

format in class 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 Number parse(String source,
                    ParsePosition parsePosition)

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

Specified by:

parse in class NumberFormat

Parameters:

source - ignored.

parsePosition - ignored.

Returns:

Always null.