Extract numbers from an alpha numeric string using android

Question

I have to extract only numeric values from String str=\"sdfvsdf68fsdfsf8999fsdf09\". How can I extract numbers from an alpha numeric string in android?

Answer 1

public static int extractNumberFromAnyAlphaNumeric(String alphaNumeric) {
    alphaNumeric = alphaNumeric.length() > 0 ? alphaNumeric.replaceAll("\\D+", "") : "";
    int num = alphaNumeric.length() > 0 ? Integer.parseInt(alphaNumeric) : 0; // or -1 
    return num;
}

You can set the value to 0 or -1 (what to do if no number is found in the alphanumeric at all) as per your needs