substring en excel code example
Example: extract letters from a string
Extract numbers from a string
Character.isDigit(str.charAt(i))
Character.isLetter(str.charAt(i))
Character.isAlphabetic(str.charAt(i))
String password = "cnE4g1Z5y9A";
String[] letters= password.split("[0-9]"); ==> cnEgZyA
String[] letters= password.split("[A-Za-z]"); ==> 4159