Write a program for a deterministic push-down automata simulator. in this case, though, your simulator should include a stack that follows the rules of a push-down automata. keep in mind that you will need to change your input file so that the transitions are of the kind , i want this to be as general as possible, with the machine defined in an external text file. the output of this can be the same as the dfsm simulator. simply indicate whether the machine accepts or rejects each input string. in java .