Match or replace a string « String « Character String « Development

Return	Method	Summary
boolean	matches(String regex)	Tells whether or not this string matches the given regular expression.
boolean	regionMatches(boolean ignoreCase, int toffset, String other, int ooffset, int len)	Tests if two string regions are equal.
boolean	regionMatches(int toffset, String other, int ooffset, int len)	Tests if two string regions are equal.
String	replace(char oldChar, char newChar)	Returns a new string resulting from replacing all occurrences of oldChar in this string with newChar.
String	replace(CharSequence target, CharSequence replacement)	Replaces each substring of this string that matches the literal target sequence with the specified literal replacement sequence.
String	replaceAll(String regex, String replacement)	Replaces each substring of this string that matches the given regular expression with the given replacement.
String	replaceFirst(String regex, String replacement)	Replaces the first substring of this string that matches the given regular expression with the given replacement.
String[]	split(String regex)	Splits this string around matches of the given regular expression.
String[]	split(String regex, int limit)	Splits this string around matches of the given regular expression.