JFLAP

If you are embarking on the quest of figuring out the basics of automata theory as well as formal languages, a collection of graphical tools such as JFLAP could really come in handy.

The Java-based application opens the door to various experiments related to anything ranging from nondeterministic pushdown automata and nondeterministic finite automata to various grammar types, L-systems, and more.

Boasting applicability in both research and college classroom, the software utility meets you with a rather approachable user interface. In the main window, you are prompted with a list of theories and models you can work with. You should thus be able to see options such as Finite Automation, Moore Machine, Turing Machine, Mealy Machine, Grammar, L-System, Regular Expression, Regular Pumping Lemma, and more.

Once you have made your choice clear, a new window opens so that you can come up with the symbols and elements that describe the model you intend to create. It is also important to point out that a render system is integrated and can be accessed from the “Input” menu. An attribute editor is also available for you to use along with transition and state creators.

Another aspect worth mentioning is related to the conversion functionality integrated into JFLAC. That means you can effortlessly turn regular expressions into FA, grammar to PDA and the other way around, context-free grammar to Chomsky grammar, etc..

Moreover, users might be interested in the fact that structure analyses can be carried out as well, with the program being able to reveal details on nondeterministic states, λ-transitions, and more.

Serving as a capable educational tool, JFLAP should help you become familiar with what automata and formal languages entail. It boasts a well put-together set of functionality you could enjoy and could prove an irreplaceable tool for your experiments.