import javax.swing.JOptionPane;
import java.io.*;

public class Find1
{

    public static void main (String[] args) throws IOException
    {
        String file = "output.dat";
        BufferedReader inFile = new BufferedReader (new FileReader(file));
        String message, itemToFind;
        String item, price;
        boolean found = false;

        // display input dialog to user
        message = "This program asks the user to enter the name of ";
        message += "an item\nthen there is a search of a data file " ;
        message += "for the item.\nEither the price of the item or a ";
        message += "message stating\nthat the item was not found is ";
        message += "displayed.";
        itemToFind = JOptionPane.showInputDialog (message);

        // read first item from the file
        item = inFile.readLine();
        while (!found && item != null) {
            // read the price
            price = inFile.readLine();

            // is this the item we're looking for?
            if (item.equals(itemToFind)) {
                found = true;
                message = "The " + item + " is available for $" + price;
                JOptionPane.showMessageDialog (null, message, "Item Price",
                                             JOptionPane.INFORMATION_MESSAGE);
            }
	    
            // read next item
            item = inFile.readLine();
        }
	
        if (!found) {
            JOptionPane.showMessageDialog (null, itemToFind + " not found", 
                                           "Sorry",
                                           JOptionPane.INFORMATION_MESSAGE);
        }

        // close the input file and exit
        inFile.close();
        System.exit(0);
    }
}