Issues With Enum

[SanjayR Jain]

Hello
I have a ten enum. One of them is as below:

  public enum Type {
	TYPEA,TYPEB;
}  

And for the ten enum classes I have ten other classes in which each of one used.
One of them is as below :

   public class ClassB extends ClassA {
	
	public ClassB()
	{
		
	}
	
	// Should return Type enum 
	@Override
	protected Enum getEnumName() {    // My this method should return enum Type
	//	return Type;
	}
	
} 

Now I have a Super class and all my ten classes extends to this super class :

// Super Class

   
public class ClassA {

	public ClassA() {
		getData();
	}

	private void getData() {
	//	 Enum E=getEnumName();
	//	 for(E e:e.getValues)
	//	 {
	//		 System.out.println(e.toString);
	//	 }
	}

	abstract Enum getEnumName() ;
}
 

I dont want to add getData method to each in every my suclass for getting data.So I want that in any way I can return the enum to super class and in super class I use for over enum.values();
But I didnt find a way to return a enum from a method.
May be this is not poosible.So please help me out

[Christophe Verré]

An enum is a type, so you cannot return it like this. You can only return a concrete implementation of it. You could return the values instead :

abstract Enum[] getEnumName();

And use return Type.values() in your concrete classes.

[Rob Spoor]

Note that covariant return values are allowed. So if the abstract super class method returns Enum[] the concrete subclass can return Type[].