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Answer:

Any number.


Final States

The example automaton has just one final state. But, in general, automata can have any number of final states. For flexibility, our implementation has a list of final states. A final state (for us) can be any state, 0 or higher. The pseudocode for handling final states is:

finalStates: list of final states

addFinal( state )
{
  add state to the list of final states;
}

boolean isFinal( state )
{
  if (state is in list of final states)
    return true;
  else
    return false;
}

QUESTION 7:

The table-driven automaton will be contained in an object, with methods addTrans(), addFinal(), isFinal(), and recognize(). What should the constructor of the object do?