Samson_Ramirez - Form

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class Samson_Form extends JFrame implements ActionListener {
    private Container con = getContentPane();

    FlowLayout fl = new FlowLayout();
    Font bFont = new Font("Times New Roman", Font.BOLD, 20);
    JLabel lb1 = new JLabel("Enter Your Fullname: ");
    JTextField tf1 = new JTextField(18);
    JLabel lb2 = new JLabel("Enter Your Age: ");
    JTextField tf2 = new JTextField(18);
    JLabel lb3 = new JLabel("Enter Your Address: ");
    JTextField tf3 = new JTextField(18);
    JButton bt = new JButton("Send");
    JButton bt2 = new JButton("Clear");
    JLabel lb4 = new JLabel();

    public Samson_Form(){
        super("Samson - Information Form");
        setSize(600, 350);
        con.setLayout(fl);
        con.setBackground(Color.GRAY);
        lb1.setFont(bFont);
        lb2.setFont(bFont);
        lb3.setFont(bFont);
        lb4.setFont(bFont);
        add(lb1);
        add(tf1);
        add(lb2);
        add(tf2);
        add(lb3);
        add(tf3);
        add(bt);
        add(bt2);
        add(lb4);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        lb1.setPreferredSize(new Dimension(250,50));
        tf1.setPreferredSize(new Dimension(325,30));
        lb2.setPreferredSize(new Dimension(250,50));
        tf2.setPreferredSize(new Dimension(325,30));
        lb3.setPreferredSize(new Dimension(250,50));
        tf3.setPreferredSize(new Dimension(325,30));
        bt.setPreferredSize(new Dimension(200, 40));
        bt.setHorizontalAlignment(JButton.CENTER);
        bt2.setPreferredSize(new Dimension(200, 40));
        bt2.setHorizontalAlignment(JButton.CENTER);
        lb4.setPreferredSize(new Dimension(375,50));
        lb4.setHorizontalAlignment(JLabel.CENTER);
        lb4.setForeground(Color.BLACK);
        bt.setBackground(Color.BLACK);
        bt.setForeground(Color.GREEN);
        bt2.setBackground(Color.BLACK);
        bt2.setForeground(Color.RED);
        bt.setToolTipText("Click to Submit");
        bt2.setToolTipText("Click to Clear the Textfield");
        bt.addActionListener(this);
        bt2.addActionListener(new ActionListener(){
           public void actionPerformed(ActionEvent e){
               tf1.setText("");
               tf2.setText("");
               tf3.setText("");
               lb4.setText("");
           }
        });
    }
    public void actionPerformed(ActionEvent e){
        if(tf1.getText().isEmpty()||tf2.getText().isEmpty()||tf3.getText().isEmpty()){
            JOptionPane.showMessageDialog(Samson_Form.this, "No Data Input.");
        }else{
            try{
                String name1 = tf1.getText();
                String age1 = tf2.getText();
                String add1 = tf3.getText();
                int age = Integer.parseInt(tf2.getText());

                String message = "Hi!, "+name1+".";
                String message2 = "Age: "+age1+" years old.";
                String message3 = "Address: "+add1+".";
                String message4A = "Congratulation, You Can Vote.";
                String message4B = "Sorry, You Can't Vote.";
                String msg;
                if(age > 17){
                    msg = ""+message+"\n"+message2+"\n"+message3+"\n"+message4A;
                }else{
                    msg = ""+message+"\n"+message2+"\n"+message3+"\n"+message4B;
                }
                lb4.setText("Information Submitted. . .");
                JOptionPane.showMessageDialog(Samson_Form.this, msg);
            }catch(NumberFormatException er){
                System.out.println(er);
                lb4.setText("Input Data Error on Age.");
                JOptionPane.showMessageDialog(Samson_Form.this, "You must Enter a Number for Age.");
            }
        }
    }
    public static void main(String[] args){
        Samson_Form fr = new Samson_Form();
        fr.setResizable(false);
        fr.setVisible(true);
    }
}