程序包 ohos.global.icu.number

类 FormattedNumber

java.lang.Object

ohos.global.icu.number.FormattedNumber

所有已实现的接口:

CharSequence

public class FormattedNumber
extends Object
implements CharSequence

The result of a number formatting operation. This class allows the result to be exported in several data types, including a String, an AttributedCharacterIterator, and a BigDecimal. Instances of this class are immutable and thread-safe.

另请参阅:

ohos.global.icu.number.NumberFormatter

方法概要

限定符和类型	方法	说明
<A extends Appendable> A	appendTo(A appendable)
char	charAt(int index)	Returns the char value at the specified index.
int	length()	Returns the length of this character sequence.
boolean	nextPosition(ConstrainedFieldPosition cfpos)
CharSequence	subSequence(int start, int end)	Returns a CharSequence that is a subsequence of this sequence.
BigDecimal	toBigDecimal()	Export the formatted number as a BigDecimal.
AttributedCharacterIterator	toCharacterIterator()
String	toString()	Returns a string representation of the object.

从接口继承的方法 java.lang.CharSequence

chars, codePoints

从类继承的方法 java.lang.Object

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

方法详细资料

toString

public String toString()

Returns a string representation of the object. In general, the toString method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method.

The toString method for class Object returns a string consisting of the name of the class of which the object is an instance, the at-sign character `@', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of:

 getClass().getName() + '@' + Integer.toHexString(hashCode())
 

指定者:

toString 在接口中 CharSequence

覆盖:

toString 在类中 Object

返回:

a string representation of the object.

length

public int length()

Returns the length of this character sequence. The length is the number of 16-bit chars in the sequence.

指定者:

length 在接口中 CharSequence

返回:

the number of chars in this sequence

charAt

public char charAt(int index)

Returns the char value at the specified index. An index ranges from zero to length() - 1. The first char value of the sequence is at index zero, the next at index one, and so on, as for array indexing.

If the char value specified by the index is a surrogate, the surrogate value is returned.

指定者:

charAt 在接口中 CharSequence

参数:

index - the index of the char value to be returned

返回:

the specified char value

subSequence

public CharSequence subSequence(int start,
                                int end)

Returns a CharSequence that is a subsequence of this sequence. The subsequence starts with the char value at the specified index and ends with the char value at index end - 1. The length (in chars) of the returned sequence is end - start, so if start == end then an empty sequence is returned.

指定者:

subSequence 在接口中 CharSequence

参数:

start - the start index, inclusive

end - the end index, exclusive

返回:

the specified subsequence

appendTo

public <A extends Appendable> A appendTo(A appendable)

nextPosition

public boolean nextPosition(ConstrainedFieldPosition cfpos)

toCharacterIterator

public AttributedCharacterIterator toCharacterIterator()

toBigDecimal

public BigDecimal toBigDecimal()

Export the formatted number as a BigDecimal. This endpoint is useful for obtaining the exact number being printed after scaling and rounding have been applied by the number formatting pipeline.

返回:

A BigDecimal representation of the formatted number.

另请参阅:

ohos.global.icu.number.NumberFormatter