package username.tests;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;

import java.util.Vector;

import username.linear.Stack;
import username.linear.ArrayBasedStack;

/**
 * A simple test of stacks.  Prints stuff in reverse order.
 *
 * @author Samuel A. Rebelsky
 * @version 1.0 of April 2006.
 */
public class TestStack
{
  public static void main(String[] args)
    throws Exception
  {
    PrintWriter pen = new PrintWriter(System.out, true);
    BufferedReader eyes = new BufferedReader(new InputStreamReader(System.in));
    Vector<String> lines = new Vector<String>();

    pen.println("Please enter some text, one line at a time.  End with a blank line.");
    String line;
    do {
      pen.print("> "); pen.flush();
      line = eyes.readLine();
      if (!line.equals("")) {
        lines.add(line);
      }
    } while (!line.equals(""));

    pen.println("ORIGINAL");
    pen.println(lines);
    reverse(lines);
    pen.println("REVERSED");
    pen.println(lines);

  } // main(String[])

  static void reverse(Vector<String> v)
  {
    Stack<String> s = new ArrayBasedStack<String>();
    for (int i = 0; i < v.size(); i++) {
      s.put(v.get(i));
    } // for
    for (int i = 0; i < v.size(); i++) {
      v.set(i, s.get());
    } // for
  } // reverse(Vector<String>)

} // class TestStack