// Main program for CSE 401 / CSE M 501 homework 3, part 2.

// Two additional classes must be defined: Parser, which must be a
// recursive-descent parser for the calculator language, and Scanner,
// which should contain a method that the parser can call each time it
// want to get the next token from the calculator input.  (Note this
// is different from the standard input library Scanner class, which
// is Java's version of the C library scanf function.)

// We strongly suggest that you put these classes in separate files
// named Scanner.java and Parser.java in the same folder as this file.
// None of these files should contain package declarations - just
// leave everything in the default (unnamed) package by omitting
// package from your code.

// The run() method in class Parser should cause the calculator to
// begin execution, reading and processing input until a quit command
// is entered.

// KW, HP 20au, 21sp

public class Calc {
    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);
        Parser p = new Parser(s);
        p.run();    
    }
}