Finite state machine: Difference between revisions
→{{header|Haskell}}
Line 601:
OK, quitting
</pre>
=={{header|Groovy}}==
{{trans|Java}}
<lang groovy>class FiniteStateMachine {
private enum State {
Ready(true, "Deposit", "Quit"),
Waiting(true, "Select", "Refund"),
Dispensing(true, "Remove"),
Refunding(false, "Refunding"),
Exiting(false, "Quiting");
State(boolean exp, String... input) {
inputs = Arrays.asList(input);
explicit = exp
}
State nextState(String input, State current) {
if (inputs.contains(input)) {
return map.getOrDefault(input, current)
}
return current
}
final List<String> inputs
final static Map<String, State> map = new HashMap<>()
final boolean explicit
static {
map.put("Deposit", Waiting)
map.put("Quit", Exiting)
map.put("Select", Dispensing)
map.put("Refund", Refunding)
map.put("Remove", Ready)
map.put("Refunding", Ready)
}
}
static void main(String[] args) {
Scanner sc = new Scanner(System.in)
State state = State.Ready
while (state != State.Exiting) {
println(state.inputs)
if (state.explicit){
print("> ")
state = state.nextState(sc.nextLine().trim(), state)
} else {
state = state.nextState(state.inputs.get(0), state)
}
}
}
}</lang>
=={{header|Haskell}}==
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