Fun with Java Enums

FunWithEnum.java

enum Algorithm{
  
  A("a"){
    private transient String msg = "I am A returned";
    public String f(){
      System.out.println("This is algo A");
      return msg;
    }
  },
  B("b"){
    private transient String msg = "I am B returned";
    public String f(){
      System.out.println("This is algo B");
      return msg;
    }
  };
  
  //Each of the enum constants must implement this abstract method.
  abstract String f();
  
  String algoName;
  
  Algorithm(String algoName){
    this.algoName = algoName;
  }
}


public class EnumDemo {
    

  /**
   * @param args
   */
  public static void main(String[] args) {    
    
    String s = Algorithm.A.f();
    
  }

}