This utitlity class includes MD5 hash generation from either String, byte[] or InputStream sources. Which Java feature is demostrated by these three static methods? 1. Method overloading 2. Method overriding 3. Polymorphism 4. Reflection

Barasheet 7

class Checksums {
  static String md5 (String input) {
    return ...
  }
  
  static String md5 (byte[] array) {
    return ...
  }
  
  static String md5 (InputStream is) {
    return ...
  }
}