CODEWITHSUNDEEP
javastringtypesinteger
tomandco
tomandco

Reputation: 51

'messy' string to int conversion java

In my code I need to convert a String to an Integer - the String comes from the extraction of metadata, which is then compared to a array of numbers and their corresponding genres. Unfortunately the string doesn't simply contain numbers, it contains some spaces and brackets, meaning the usual:

String genre = mf.genre(byteArr);
 // this gets the metadata from the byte array (It's of no consequence to this but it makes it easier to understand)
int genreInt = Integer.parseInt(genre);
System.out.println(genreInt);

doesn't work, returning

Exception in thread "main" java.lang.NumberFormatException: For input string: "    (13)"

As the 13 (for example) is the only part of this I want/need, what would be the easiest way to go about obtaining just this number from the 'messy' string? thanks

Upvotes: 0

Views: 236

Answers (1)

Salah
Salah

Reputation: 8657

You can use the following:

System.out.println(genre.replaceAll("[^0-9]",  ""));

Upvotes: 4

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