java.util.regex
Interfaces 
MatchResult sample code for java.util.regex.MatchResult definition code for java.util.regex.MatchResult
Classes 
Matcher sample code for java.util.regex.Matcher definition code for java.util.regex.Matcher
Pattern sample code for java.util.regex.Pattern definition code for java.util.regex.Pattern
Exceptions 
PatternSyntaxException sample code for java.util.regex.PatternSyntaxException definition code for java.util.regex.PatternSyntaxException