FormattedNumberRange
public
class
FormattedNumberRange
extends Object
implements
FormattedValue
java.lang.Object | |
↳ | android.icu.number.FormattedNumberRange |
The result of a number range 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.
See also:
Summary
Public methods | |
---|---|
<A extends Appendable>
A
|
appendTo(A appendable)
Appends the formatted string to an Appendable. |
char
|
charAt(int index)
Returns the |
boolean
|
equals(Object other)
Indicates whether some other object is "equal to" this one. |
BigDecimal
|
getFirstBigDecimal()
Export the first formatted number as a BigDecimal. |
NumberRangeFormatter.RangeIdentityResult
|
getIdentityResult()
Returns whether the pair of numbers was successfully formatted as a range or whether an identity fallback was used. |
BigDecimal
|
getSecondBigDecimal()
Export the second formatted number as a BigDecimal. |
int
|
hashCode()
Returns a hash code value for the object. |
int
|
length()
Returns the length of this character sequence. |
boolean
|
nextPosition(ConstrainedFieldPosition cfpos)
Iterates over field positions in the FormattedValue. |
CharSequence
|
subSequence(int start, int end)
Returns a |
AttributedCharacterIterator
|
toCharacterIterator()
Exports the formatted number as an AttributedCharacterIterator. |
String
|
toString()
Returns a string representation of the object. |
Inherited methods | |
---|---|
Public methods
appendTo
public A appendTo (A appendable)
Appends the formatted string to an Appendable.
If an IOException occurs when appending to the Appendable, an unchecked
ICUUncheckedIOException
is thrown instead.
Parameters | |
---|---|
appendable |
A : The Appendable to which to append the string output. |
Returns | |
---|---|
A |
The same Appendable, for chaining. |
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.
Parameters | |
---|---|
index |
int : the index of the char value to be returned |
Returns | |
---|---|
char |
the specified char value |
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 returntrue
. - It is symmetric: for any non-null reference values
x
andy
,x.equals(y)
should returntrue
if and only ify.equals(x)
returnstrue
. - It is transitive: for any non-null reference values
x
,y
, andz
, ifx.equals(y)
returnstrue
andy.equals(z)
returnstrue
, thenx.equals(z)
should returntrue
. - It is consistent: for any non-null reference values
x
andy
, multiple invocations ofx.equals(y)
consistently returntrue
or consistently returnfalse
, provided no information used inequals
comparisons on the objects is modified. - For any non-null reference value
x
,x.equals(null)
should returnfalse
.
An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.
Parameters | |
---|---|
other |
Object : the reference object with which to compare. |
Returns | |
---|---|
boolean |
true if this object is the same as the obj
argument; false otherwise. |
getFirstBigDecimal
public BigDecimal getFirstBigDecimal ()
Export the first 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 range formatting pipeline.
Returns | |
---|---|
BigDecimal |
A BigDecimal representation of the first formatted number. |
getIdentityResult
public NumberRangeFormatter.RangeIdentityResult getIdentityResult ()
Returns whether the pair of numbers was successfully formatted as a range or whether an identity fallback was used. For example, if the first and second number were the same either before or after rounding occurred, an identity fallback was used.
Returns | |
---|---|
NumberRangeFormatter.RangeIdentityResult |
A RangeIdentityType indicating the resulting identity situation in the formatted number range. |
getSecondBigDecimal
public BigDecimal getSecondBigDecimal ()
Export the second 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 range formatting pipeline.
Returns | |
---|---|
BigDecimal |
A BigDecimal representation of the second formatted number. |
See also:
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 inequals
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
method, then calling thehashCode
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
equals
method, then calling thehashCode
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.
Returns | |
---|---|
int |
a hash code value for this object. |
length
public int length ()
Returns the length of this character sequence. The length is the number
of 16-bit char
s in the sequence.
Returns | |
---|---|
int |
the number of char s in this sequence |
nextPosition
public boolean nextPosition (ConstrainedFieldPosition cfpos)
Iterates over field positions in the FormattedValue. This lets you determine the position of specific types of substrings, like a month or a decimal separator. To loop over all field positions:
ConstrainedFieldPosition cfpos = new ConstrainedFieldPosition(); while (fmtval.nextPosition(cfpos)) { // handle the field position; get information from cfpos }
Parameters | |
---|---|
cfpos |
ConstrainedFieldPosition : The object used for iteration state. This can provide constraints to iterate over
only one specific field; see ConstrainedFieldPosition#constrainField . |
Returns | |
---|---|
boolean |
true if a new occurrence of the field was found; false otherwise. |
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 char
s) of the
returned sequence is end - start
, so if start == end
then an empty sequence is returned.
Parameters | |
---|---|
start |
int : the start index, inclusive |
end |
int : the end index, exclusive |
Returns | |
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CharSequence |
the specified subsequence |
toCharacterIterator
public AttributedCharacterIterator toCharacterIterator ()
Exports the formatted number as an AttributedCharacterIterator.
Consider using nextPosition(ConstrainedFieldPosition)
if you are trying to get field information.
Returns | |
---|---|
AttributedCharacterIterator |
An AttributedCharacterIterator containing full field information. |
toString
public String toString ()
Returns a string representation of the object.
Returns | |
---|---|
String |
a string representation of the object. |