Java Regex

p style=font-family: verdana, helvetica, arial, sans-serif; font-size: 13px;The strong style=color: #2f4f4f;Java Regex/strong or Regular Expression is an API to emdefine a pattern for searching or manipulating strings/em. It is widely used to define the constraint on strings such as password and email validation. After learning the Java regex tutorial, you will be able to test your regular expressions by the Java Regex Tester Tool./p