程序包 ohos.global.icu.number

类 LocalizedNumberFormatter

java.lang.Object

ohos.global.icu.number.LocalizedNumberFormatter

public class LocalizedNumberFormatter
extends Object

A NumberFormatter that has a locale associated with it; this means .format() methods are available. Instances of this class are immutable and thread-safe.

另请参阅:

ohos.global.icu.number.NumberFormatter, ohos.global.icu.number.NumberFormatter

方法概要

限定符和类型	方法	说明
boolean	equals(Object other)	Indicates whether some other object is "equal to" this one.
FormattedNumber	format(double input)	Format the given float or double to a string using the settings specified in the NumberFormatter fluent setting chain.
FormattedNumber	format(long input)	Format the given byte, short, int, or long to a string using the settings specified in the NumberFormatter fluent setting chain.
FormattedNumber	format(Number input)	Format the given BigInteger, BigDecimal, or other Number to a string using the settings specified in the NumberFormatter fluent setting chain.
FormattedNumber	format(Measure input)	Format the given Measure or CurrencyAmount to a string using the settings specified in the NumberFormatter fluent setting chain.
int	hashCode()	Returns a hash code value for the object.
Format	toFormat()	Creates a representation of this LocalizedNumberFormat as a Format, enabling the use of this number formatter with APIs that need an object of that type, such as MessageFormat.
String	toSkeleton()	Creates a skeleton string representation of this number formatter.

从类继承的方法 java.lang.Object

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

方法详细资料

format

public FormattedNumber format(long input)

Format the given byte, short, int, or long to a string using the settings specified in the NumberFormatter fluent setting chain.

参数:

input - The number to format.

返回:

A FormattedNumber object; call .toString() to get the string.

另请参阅:

ohos.global.icu.number.NumberFormatter

format

public FormattedNumber format(double input)

Format the given float or double to a string using the settings specified in the NumberFormatter fluent setting chain.

参数:

input - The number to format.

返回:

A FormattedNumber object; call .toString() to get the string.

另请参阅:

ohos.global.icu.number.NumberFormatter

format

public FormattedNumber format(Number input)

Format the given BigInteger, BigDecimal, or other Number to a string using the settings specified in the NumberFormatter fluent setting chain.

参数:

input - The number to format.

返回:

A FormattedNumber object; call .toString() to get the string.

另请参阅:

ohos.global.icu.number.NumberFormatter

format

public FormattedNumber format(Measure input)

Format the given Measure or CurrencyAmount to a string using the settings specified in the NumberFormatter fluent setting chain.

The unit specified here overrides any unit that may have been specified in the setter chain. This method is intended for cases when each input to the number formatter has a different unit.

参数:

input - The number to format.

返回:

A FormattedNumber object; call .toString() to get the string.

另请参阅:

ohos.global.icu.number.NumberFormatter

toFormat

public Format toFormat()

Creates a representation of this LocalizedNumberFormat as a Format, enabling the use of this number formatter with APIs that need an object of that type, such as MessageFormat.

This API is not intended to be used other than for enabling API compatibility. The format(long) methods should normally be used when formatting numbers, not the Format object returned by this method.

返回:

A Format wrapping this LocalizedNumberFormatter.

另请参阅:

ohos.global.icu.number.NumberFormatter

toSkeleton

public String toSkeleton()

Creates a skeleton string representation of this number formatter. A skeleton string is a locale-agnostic serialized form of a number formatter.

Not all options are capable of being represented in the skeleton string; for example, a DecimalFormatSymbols object. If any such option is encountered, an UnsupportedOperationException is thrown.

The returned skeleton is in normalized form, such that two number formatters with equivalent behavior should produce the same skeleton.

返回:

A number skeleton string with behavior corresponding to this number formatter.

抛出:

UnsupportedOperationException - If the number formatter has an option that cannot be represented in a skeleton string.

hashCode

public int hashCode()

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by HashMap.

The general contract of hashCode is:

• Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
• If two objects are equal according to the equals(Object) method, then calling the hashCode method on each of the two objects must produce the same integer result.
• It is not required that if two objects are unequal according to the Object.equals(java.lang.Object) method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the Java™ programming language.)

覆盖:

hashCode 在类中 Object

返回:

a hash code value for this object.

另请参阅:

Object.equals(java.lang.Object), System.identityHashCode(java.lang.Object)

equals

public boolean equals(Object other)

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

• It is reflexive: for any non-null reference value x, x.equals(x) should return true.
• It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
• It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
• It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
• For any non-null reference value x, x.equals(null) should return false.

The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, for any non-null reference values x and y, this method returns true if and only if x and y refer to the same object (x == y has the value true).

Note that it is generally necessary to override the hashCode method whenever this method is overridden, so as to maintain the general contract for the hashCode method, which states that equal objects must have equal hash codes.

覆盖:

equals 在类中 Object

参数:

other - the reference object with which to compare.

返回:

true if this object is the same as the obj argument; false otherwise.

另请参阅:

Object.hashCode(), HashMap