Class NumberFormatProvider

public abstract class NumberFormatProvider
extends LocaleServiceProvider

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

Since:
1.6

Constructors

Modifier Constructor Description
protected NumberFormatProvider()

Sole constructor.

Methods

Modifier and Type Method Description
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

Constructors

NumberFormatProvider

protected NumberFormatProvider()

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

Methods

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:
NumberFormat.getCurrencyInstance(java.util.Locale)

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:
NumberFormat.getIntegerInstance(java.util.Locale)

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:
NumberFormat.getNumberInstance(java.util.Locale)

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:
NumberFormat.getPercentInstance(java.util.Locale)

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https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/text/spi/NumberFormatProvider.html