Which Alice?

ALICE IN PUZZLE-LAND
"After you have figured out who he is, your second job is to figure
out who I am, you know!"
"Well, that part is just silly!" replied Alice, with a scream of
laughter. "Obviously if he is Tweedledee, then you must be
Tweedledum, and if he is Tweedledum, you must be Tweedledee.
Even a dunce could figure that out!"
"Quite right," he replied, "and now let's play!"
Game I—Red and Black
ROUND ONE At this point, the other brother said, "1 am
Tweedledum, and I am carrying a black card."
Alice had little difficulty in figuring out who he was. Who was he?
"Congratulations!" said both brothers at once, each shaking one
of Alice's hands. "You have won the first round!"
"Now, for the next four rounds," said the first brother, "before
each round, we both disappear into the house, where we have a
pack of cards. We go into a huddle, then one of us puts a card in his
pocket, comes out, and makes a statement. You must then figure
out which one he is."
"Will he be carrying the same color card as in the last round?
asked Alice.
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