java - Check if a String contains a special character

Question

How do you check if a String contains a special character like:

[,],{,},{,),*,|,:,>,

Answer 1

Pattern p = Pattern.compile("[^a-z0-9 ]", Pattern.CASE_INSENSITIVE);
Matcher m = p.matcher("I am a string");
boolean b = m.find();

if (b)
   System.out.println("There is a special character in my string");