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Préférences
Moteurs de recherche
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JavaTM 2 Platform Std. Ed. v1.6.0
java.lang
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Method Summary | |
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char |
charAt(int index)
Returns the char value at the specified index. |
int |
length()
Returns the length of this character sequence. |
CharSequence |
subSequence(int start,
int end)
Returns a new CharSequence that is a subsequence of this sequence. |
String |
toString()
Returns a string containing the characters in this sequence in the same order as this sequence. |
Method Detail |
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int length()
char
s in the sequence.
char
s in this sequencechar charAt(int index)
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.
index
- the index of the char
value to be returned
char
value
IndexOutOfBoundsException
- if the index argument is negative or not less than
length()CharSequence subSequence(int start, int end)
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.
start
- the start index, inclusiveend
- the end index, exclusive
IndexOutOfBoundsException
- if start or end are negative,
if end is greater than length(),
or if start is greater than endString toString()