if statement

    import java.awt.*;
    import java.awt.event.*;
    import javax.swing.*;
    import java.util.Calendar;
    import java.awt.event.ActionEvent;
    import java.awt.event.ActionListener;
    import javax.swing.JButton;
    import javax.swing.JFrame;
    import javax.swing.JLabel;
    import javax.swing.JOptionPane;
    import javax.swing.JPanel;
    import javax.swing.JTextField;
    import java.awt.Color;
    import java.awt.Toolkit;


class clockexample1 extends JFrame {


    private JTextField _textfield1;

    public clockexample1() {

        _textfield1 = new JTextField(5);
        _textfield1.setEditable(false);
        JPanel panel1 = new JPanel();
        panel1.setLayout(new FlowLayout());
        panel1.add(_textfield1);
        JButton button1 = new JButton("click here");
        final Toolkit tk = Toolkit.getDefaultToolkit();tk.beep();


        this.setContentPane(panel1);
        this.setTitle("Text Clock 1");
        this.pack();
        this.setLocationRelativeTo(null);
        this.setResizable(true);
        panel1.add(button1);

        javax.swing.Timer t = new javax.swing.Timer(1000, new ClockListener());
        t.start();
            }



class ClockListener implements ActionListener {
    int count = 0;

    public void actionPerformed(ActionEvent e) {
        int fakeSecond = (count++ % 4) + 1;
        Calendar now = Calendar.getInstance();
        int h = now.get(Calendar.HOUR_OF_DAY);
        int m = now.get(Calendar.MINUTE);
        int s = now.get(Calendar.SECOND);
        _textfield1.setText("" + fakeSecond + "");


    }

}




    public static void main(String[] args) {
        JFrame clock = new clockexample1();
        clock.setVisible(true);
    }

}