Number format exception in parse int

Question

public static void main(String[] args)throws IOException {
  String s ="12312a";
  int x = Integer.parseInt(s);
  System.out.println (x+2);
}

and all what I've got is :

Exception in thread "main" java.lang.NumberFormatException: For input string: "12312a"

any hints ?

Answer 1

Perhaps you meant

int x = Integer.parseInt("12312a", 16);