// CS1101 (AY2007/8 Semester 1)
// Lab 6 Exercise 1
// Calculator.java (partial code)
// (Fill in the description of your program below.)
//
// Written by: Aaron Tan

import java.util.*;

public class Calculator {

    Scanner scanner = new Scanner(System.in);

    //-----------------------------------------------------
    // Data members
    //-----------------------------------------------------
    String expr;
    int    length;
    int    index;

    //-----------------------------------------------------
    // Constructor
    //-----------------------------------------------------
    public Calculator () {
    }

    //-----------------------------------------------------
    // main method 
    //-----------------------------------------------------
    public static void main (String [] args)  {

        Calculator cal = new Calculator();

        // to be filled in

    }

    // You may add other methods here

}