Useful String functions length, charAt, concat, substring, equals, equalsIgnoreCase, compareTo, compareToIgnoreCase, startsWith, endsWith, indexOf, lastIndexOf. these are not static …

The method charAt(int index) returns an individual char from inside a string. The valid index numbers are in the range 0..length-1. Using an index number outside of that range will raise a …

String data type for huge strings.・Are you sure charAt() and length() take constant time?・If lots of calls to charAt(), overhead for function calls is large.・If lots of small strings, memory …

•charAt(): A String behaves a lot like an array of characters. But it isn’t an array, and so we’ve never been able to use the usual array syntax, such as square brackets to access individual …

Description The java.lang.String.charAt method returns the char value at the specified index. An index ranges from 0 to length - 1. The first char value of the sequence is at index 0, the next at …

Returns a new string that concatenates this string with string s1. Returns a new string with all letters in uppercase. Returns a new string with all letters in lowercase. Returns a new string …

whenever we detect a mismatch, we already know some of the characters in the text (since they matched the pattern characters prior to the mismatch). We can take advantage of this …