In Java, how do i search for this certain regex?

Question

I want a function to search a string to see if it contains $[0-9] or $[af,AF]

So like, if it contains $a or even $e it'll turn true.

Answer 1

Check out the Java docs, very straightforward:

http://download.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html#matches%28java.lang.String,%20java.lang.CharSequence%29

Answer 2

The regex is /\\$[A-Fa-f0-9]/ and you might use it like so:

Pattern.matches("\$[A-Fa-f0-9]", yourString);

See http://download.oracle.com/javase/6/docs/api/java/util/regex/Pattern.html

Answer 3

create regex with the help of this tutorial : http://download.oracle.com/javase/tutorial/essential/regex/matcher.html

use matches() method from String class : http://download.oracle.com/javase/7/docs/api/java/lang/String.html#matches%28java.lang.String%29