/* ==========================================================
   This demo program uses Java's generic Stack class
   ========================================================== */
import java.util.Stack;
import java.util.Arrays;

public class DemoX
{
    public static void main(String[] args)
    {
	String[] input = args;

	if ( input.length == 0 )
	{
	    System.out.println("\nUsage: java DemoX  Fully-bracketed-expression\n");
	    System.out.println("\nExample: java DemoX  \\( 3 + 4 \\)\n");
	    System.exit(0);
	}

	int result = Dijkstra.eval(input);

	System.out.println(Arrays.toString(input) + " ---> " + result );
    }
}