July 2007
Intermediate to advanced
128 pages
2h 39m
English
java.lang.CharSequence
Defines an interface for read-only access so that regular expression patterns may be applied to a sequence of characters.
char charAt(intindex)Return the character at the zero-based position index.
int length( )Return the number of characters in the sequence.
CharSequence subSequence(intstart, intend)Return a subsequence, including the start index, and excluding the end index.
String toString( )Return a String representation of the sequence.