Method main

src/main/java/edu/princeton/cs/algs4/Stack.java:177–187

Unit tests the Stack data type. @param args the command-line arguments

(String[] args)

     * @param args the command-line arguments
     */
    public static void main(String[] args) {
        Stack<String> stack = new Stack<String>();
        while (!StdIn.isEmpty()) {
            String item = StdIn.readString();
            if (!item.equals("-"))
                stack.push(item);
            else if (!stack.isEmpty())
                StdOut.print(stack.pop() + " ");
        }
        StdOut.println("(" + stack.size() + " left on stack)");
    }
}