Creating a UUID from a string with no dashes

Question

How would I create a java.util.UUID from a string with no dashes?

\"5231b533ba17478798a3f2df37de2aD7\" => #uuid \"5231b533-ba17-4787-98a3-f2df37de2aD7\"
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Answer 1

You could do a goofy regular expression replacement:

String digits = "5231b533ba17478798a3f2df37de2aD7";                         
String uuid = digits.replaceAll(                                            
    "(\\w{8})(\\w{4})(\\w{4})(\\w{4})(\\w{12})",                            
    "$1-$2-$3-$4-$5");                                                      
System.out.println(uuid); // => 5231b533-ba17-4787-98a3-f2df37de2aD7