An interpreter developed using the MVC Pattern in Java and providing a GUI interface created with JavaFX.
The application works by running, one by one, each instruction in the execution stack. At each step, the user can see what each structure contains: what are the values printed on the screen, what the variables declared are, how many processes there are etc. A normal run consists of choosing the program to run from a list (and also checking if the types are correct by pressing the "CHECK" button) and then running "ONE STEP" until the execution stack is empty and the number of programs becomes 0.
There are currently 11 hardcoded examples available in the "ControllerProgramPicker.java" module. In order to add new "programs" just follow the already existing ones. Currently, the following are available:
- IntType/IntValue -> integers
- BoolType/BoolValue -> booleans
- StringType/StringValue -> strings
- RefType/RefValue -> references to another type
- ExecutionStack-> contains each instruction in order
- SymbolsTable -> contains the variables declared on the stack
- HeapTable -> contains the variables declared on the heap
- FileTable -> contains a table of open files
- TypeEnvironment -> responsible for assuring the correctness of each type before the initialization of the program
- Expressions dealing with values/variables: ValueExpression, VariableExpression
- Expressions responsible for computing/comparing: ArithmeticExpression, LogicalExpression, RelationalExpression
- Expressions working with the heap: HeapReadingExpression
- Statements responsible for computing/comparing: AssignmentStatement
- Statements working with the heap: HeapWritingStatement, NewStatement
- Statements working with files: OpenRFileStatement, CloseRFileStatement, ReadFileStatement
- Statements for multithreading: ForkStatement
- General Statements: CompoundStatement, PrintStatement, WhileStatement, VariableDeclarationStatement, IfStatement, NopStatement
In order to run the application the JavaFX package has to be installed.
Just clone the repository and open the project in an IDE if your choice (preferably IntelliJ).
git clone https://github.com/neutralove/Java-Interpreter.git
