import java.io.*;
import java.util.Vector;

/**
 * A simple class for formatting text messages.
 *
 * This class illustrates the use of the Vector
 * class.
 *
 * @author  Prof. David Bernstein, James Madison University
 * @version 2.0 (Using type-safe generics)
 */
public class TextFormatter
{

    /**
     * The entry point of the program
     *
     * @param args  The command-line arguments
     */
    public static void main(String[] args)
    {
       BufferedReader  in;
       int             displayWidth, i, width;
       String          word;
       Vector<String>  message;          // v2.0

       in = new BufferedReader(new InputStreamReader(System.in));


       // Initialization
       displayWidth = 20;

       // Construct a new Vector
       message = new Vector<String>();  // v2.0


       // Prompt the user to enter the message
       // one word at a time
       do 
       {
          word = "";
          System.out.print("Next word: ");

          try 
          {
             word = in.readLine();
             message.add(message.size(), word);
          } 
          catch (IOException ioe) 
          { 
             ioe.printStackTrace();
          }
       } 
       while (!word.equals(""));


       System.out.print("\n\n\n");

       // Format the message so that it fits in
       // a fixed-width display
       width = displayWidth;
       for (i=0; i < message.size(); i++) 
       {
          word = (message.get(i));       // v2.0

          if (width+word.length()+1 > displayWidth) 
          {
             width = word.length();
             System.out.print("\n");
             System.out.print(word);
          } 
          else 
          {
             width = width + word.length() + 1;
             System.out.print(" "+word+" ");
          }
       }
    }
}