public static void main(String[] args) throws IOException {
String input;
System.out.print("Please enter a word... ");
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
input = in.readLine();
print(input);
}
public static void main(String[] args) {
Calculator c = new Calculator();
Invoker invoker = new Invoker(c);
invoker.calculate(new CalculatorCommand(c, '+', 9));
invoker.calculate(new CalculatorCommand(c, '-', 5));
invoker.calculate(new CalculatorCommand(c, '*', 3));
invoker.calculate(new CalculatorCommand(c, '/', 2));
c.print();
// undo the last 3 operations
invoker.undo(3);
c.print();
// redo the final 3 operations
invoker.redo(3);
c.print();
}
