public class Test {
    
    public static void find(String regex, String string){
        regex = regex.replaceAll("\\*", ".*");
        Matcher m = Pattern.compile(regex).matcher(string);
        while(m.find()){
            System.out.println(m.group());
        }
    }
    public static void main(String[] args) {
        String string = "abcdefghijklmnopqrstuvwxyz";
        String regex = "*b";
        find(regex, string);
    }
}