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Class NumberFormatProvider

java.lang.Object

java.util.spi.LocaleServiceProvider

java.text.spi.NumberFormatProvider

public abstract class NumberFormatProvider extends LocaleServiceProvider

An abstract class for service providers that provide concrete implementations of the NumberFormat class.

Since:: 1.6

Constructor Summary

NumberFormatProvider()

Modifier	Constructor	Description
`protected`	Sole constructor.

Method Summary

Modifier and Type	Method	Description
`NumberFormat`	`getCompactNumberInstance(Locale locale, NumberFormat.Style formatStyle)`	Returns a new `NumberFormat` instance which formats a number in its compact form for the specified `locale` and `formatStyle`.
`abstract NumberFormat`	`getCurrencyInstance(Locale locale)`	Returns a new `NumberFormat` instance which formats monetary values for the specified locale.
`abstract NumberFormat`	`getIntegerInstance(Locale locale)`	Returns a new `NumberFormat` instance which formats integer values for the specified locale.
`abstract NumberFormat`	`getNumberInstance(Locale locale)`	Returns a new general-purpose `NumberFormat` instance for the specified locale.
`abstract NumberFormat`	`getPercentInstance(Locale locale)`	Returns a new `NumberFormat` instance which formats percentage values for the specified locale.

Methods declared in class java.util.spi.LocaleServiceProvider

getAvailableLocales, isSupportedLocale

Methods declared in class java.lang.Object

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

Constructor Details

NumberFormatProvider

protected NumberFormatProvider()

Sole constructor. (For invocation by subclass constructors, typically implicit.)

Method Details

getCurrencyInstance

public abstract NumberFormat getCurrencyInstance(Locale locale)

Returns a new NumberFormat instance which formats monetary values for the specified locale.

Parameters:

locale - the desired locale.

Returns:

a currency formatter

Throws:

NullPointerException - if locale is null

IllegalArgumentException - if locale isn't one of the locales returned from getAvailableLocales().

See Also:

getIntegerInstance

public abstract NumberFormat getIntegerInstance(Locale locale)

Returns a new NumberFormat instance which formats integer values for the specified locale. The returned number format is configured to round floating point numbers to the nearest integer using half-even rounding (see HALF_EVEN) for formatting, and to parse only the integer part of an input string (see isParseIntegerOnly).

Parameters:

locale - the desired locale

Returns:

a number format for integer values

Throws:

NullPointerException - if locale is null

IllegalArgumentException - if locale isn't one of the locales returned from getAvailableLocales().

See Also:

getNumberInstance

public abstract NumberFormat getNumberInstance(Locale locale)

Returns a new general-purpose NumberFormat instance for the specified locale.

Parameters:

locale - the desired locale

Returns:

a general-purpose number formatter

Throws:

NullPointerException - if locale is null

IllegalArgumentException - if locale isn't one of the locales returned from getAvailableLocales().

See Also:

getPercentInstance

public abstract NumberFormat getPercentInstance(Locale locale)

Returns a new NumberFormat instance which formats percentage values for the specified locale.

Parameters:

locale - the desired locale

Returns:

a percent formatter

Throws:

NullPointerException - if locale is null

IllegalArgumentException - if locale isn't one of the locales returned from getAvailableLocales().

See Also:

getCompactNumberInstance

public NumberFormat getCompactNumberInstance(Locale locale, NumberFormat.Style formatStyle)

Returns a new NumberFormat instance which formats a number in its compact form for the specified locale and formatStyle.

Implementation Requirements:

The default implementation of this method throws UnsupportedOperationException. Overriding the implementation of this method returns the compact number formatter instance of the given locale with specified formatStyle.

Parameters:

locale - the desired locale

formatStyle - the style for formatting a number

Returns:

a compact number formatter

Throws:

NullPointerException - if locale or formatStyle is null

IllegalArgumentException - if locale is not one of the locales returned from getAvailableLocales().

UnsupportedOperationException - if the implementation does not support this method

Since:

See Also:

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https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/text/spi/NumberFormatProvider.html