A whitespace character can be: A space character A tab character A carriage return character A new line character A vertical tab character A form feed character.Whitespace Matching Regex - Java s stands for "whitespace character". Again, which characters this actually includes, depends on the regex flavor.Java 8 and JGsoft V2 changed the meaning of this token anyway. The vertical tab is also a vertical whitespace character. A non-whitespace character: [Supported Regular Expressions in MapR Tabless]. regex Classes for matching character sequences against patterns specified by re.Therefore, the java code should look like this WHITESPACE. regex package for pattern matching with regular expressions. Whitespace Matching Regex - Java Regex allowing a space character in Java .Youd better find more than a single whitespace and negate the result: if(!title.trim().matches("s2,")) , see java.util.regex.Pattern javadoc for the syntax. Java regular expressions cheat sheet: syntax, patterns, matchers, frequently used methods, pattern flags, quantifiers, regex character classes, and examples.Java regex whitespace. Pattern (Java Platform SE 7 ) - Oracle Help Center.
A non-whitespace character: [s].The following examples demonstrate the use of predefined character classes. Enter your regex 3,15 Length at least 3 characters and maximum length of 15 End of the line.s can start with whitespace (?i) all checking are case insensive.The This is cut and pasted from the java.util.regex.Pattern JavaDoc.
java - Regex to add characters to beginning of line. regex - Replace character of string ignoring whitespaces until a character in java.