package rebelsky.exam1;

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

/**
 * DESCRIPTION
 *
 * @author YOUR NAME HERE
 * @version V of DATE
 */
public class MadLib
{
  // +--------------+--------------------------------------------
  // | Class Fields |
  // +--------------+

  // +--------+--------------------------------------------------
  // | Fields |
  // +--------+

	String contents;
 

  // +--------------+--------------------------------------------
  // | Constructors |
  // +--------------+

	public MadLib(String _contents)
	{
		this.contents = _contents;
	} // MadLib(String)

  // +---------+-------------------------------------------------
  // | Methods |
  // +---------+

	public void play(PrintWriter pen, BufferedReader eyes)
		throws Exception
	{
		// Make a copy of the contents so that we can modify it.
		String str = this.contents;
		// As long as "blanks" remain in the string, ask about them
		int firstBlank = str.indexOf("_");
		while (firstBlank >= 0)
		{
			// Find the next blank
			int secondBlank = str.indexOf("_", firstBlank+1);
			// Ask the user for a value
			pen.print("Please enter a(n) " + str.substring(firstBlank+1,secondBlank));
			pen.flush();
			String response;
			  response = eyes.readLine();

			// Replace that whole block with what the user enters
			str = str.substring(0,firstBlank)
				+ response
				+ str.substring(secondBlank + 1);

			// And start again
			firstBlank = str.indexOf("_");
		} // while
		// Print out the result
		pen.println(str);
	} // play()

  // +---------------+-------------------------------------------
  // | Class Methods |
  // +---------------+

} // class MadLib