Question

I have enum class

public enum CommandEnum {       

    ADD_ITEM {
        {
            this.command = new AddItemCommand();
        }
    };

    protected Command command;

    public Command getCurrentCommand() {
        return command;
    }
}

And class which try to get particular command

CommandEnum currentState = CommandEnum.valueOf(action.toUpperCase());
current = currentState.getCurrentCommand();

And how many copies was created of class AddItemCommand if I called this command 4 times for example?

Answer 1

Enum constants are public static final, so you will get the only one object every time. It’s very easy to discover it yourself.