Why read d'information into the card and send these to the database

Question

hi hello world,
i have an application where i must take some informations to the customer in their electronic card and send this informations to the database. so, in want : 1. buy the card reader which i dont know where i can buy this, 2. i must buy the card which will contain the customer informations, and 3. how put (read) informations contain into the card to my card reder and send those informations to the database.
if some body know how i can do, please help me.
my direct email: [email protected]

Answer 1

I've changed my original question on the first thread.
The file, glass.txt, contains the following:
Moretti 247 H 1.1 $38.50
Moretti 276 O 0.9 $10.80
Vetrofond 902 T 0.4 $4.00
Vetrofond 408 S 0.6 $9.00
Lauscha 045 T 0.2 $2.00
Vetrofond 907 L 0.1 $4.50
Ex. Moretti -> manufacture name
247 -> number
H -> category
1.1 -> amount of glass in pounds
$38.50 -> cost of the glass manufacture
"Read in each line of data from the file, and display it to the user using an information-type message box, indicating the manufacture name, the number, the category (spelled out as a word), the amount of glass in pounds, and the cost of the glass".
I did it, but it seems that I did something wrong. Could you please help me?
I appreciate your help. Thank you.
import javax.swing.JOptionPane;        // Needed for the JOptionPane class
import java.io.*;                    // Needed for file classes
public class problem3
    public static void main(String[] args) throws IOException
        String filename;        // Needed to read the file
        String categories;        // Needed to read the categories
        // Get the filename.
        filename = JOptionPane.showInputDialog("Enter the filname.");
        // Open the file.
        FileReader freader = new FileReader(filename);
        BufferedReader inputFile = new BufferedReader(freader);
        // Read the categories from the file.
        categories = inputFile.readLine();
        // If a category was read, display it and
        // read the remaining categories.
        while (categories != null)
            // Display the last category read.
            JOptionPane.showMessageDialog(null, categories);
            // Read the next category.
            categories = inputFile.readLine();
        // Close the file.
        inputFile.close();
}