escape period .
with two backslashes \\.
valid escape sequences supported in java are \b \t \n \f \r \" \' \\
System.out.println(email.matches("^(.+@.+\\.\\w{2,4})$"));
OR:
Enclose it within \\Q
and \\E
\\Q.\\E
Question
I'm getting a compilation error when I use this regular expression inside the String class's matches() method. Anyone know what I'm doing wrong here? Thanks
String email = "this@that.com";
System.out.println(email.matches("^(.+@.+\.\\w{2,4})$"));
Solution
escape period .
with two backslashes \\.
valid escape sequences supported in java are \b \t \n \f \r \" \' \\
System.out.println(email.matches("^(.+@.+\\.\\w{2,4})$"));
OR:
Enclose it within \\Q
and \\E
\\Q.\\E