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JavaTM 2 Platform Std. Ed. v1.4.2 |
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A CharSequence is a readable sequence of characters. This interface provides uniform, read-only access to many different kinds of character sequences.
This interface does not refine the general contracts of the equals
and hashCode
methods. The result of comparing two
objects that implement CharSequence is therefore, in general,
undefined. Each object may be implemented by a different class, and there
is no guarantee that each class will be capable of testing its instances
for equality with those of the other. It is therefore inappropriate to use
arbitrary CharSequence instances as elements in a set or as keys in
a map.
Method Summary | |
char |
charAt(int index)
Returns the character at the specified index. |
int |
length()
Returns the length of this character sequence. |
CharSequence |
subSequence(int start,
int end)
Returns a new character sequence 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 |
public int length()
public char charAt(int index)
index
- the index of the character to be returned
IndexOutOfBoundsException
- if the index argument is negative or not less than
length()public CharSequence subSequence(int start, int end)
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 endpublic String toString()
toString
in class Object
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JavaTM 2 Platform Std. Ed. v1.4.2 |
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Copyright 2003 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.