import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class MySecondApp extends JFrame {
    JPanel panel;
    JLabel label, label1;
    JButton button, button1;

    public MySecondApp() throws HeadlessException {
        panel = new JPanel();
        panel.setLayout(new GridBagLayout());

        button = new JButton();
        button.setText("Ahoj");
        button.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                JOptionPane.showMessageDialog(MySecondApp.this, "AHOJ!");
            }
        });
        button1 = new JButton();
        button1.setText("Čau");
        button1.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                JOptionPane.showMessageDialog(MySecondApp.this, "ČAU!");
            }
        });
        label = new JLabel("Ahoj:");
        label1 = new JLabel("Čau:");

        setTitle("My APP");
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setSize(1920,1080);
        setVisible(true);

        GridBagConstraints g = new GridBagConstraints();
        g.gridx = 0;
        g.gridy = 1;
        g.gridwidth = 2;
        g.weightx = 5;
        g.weighty =  5;

        panel.add(button, g);

        g.gridx = 2;
        g.gridwidth = 1;

        panel.add(button1, g);

        g.gridy = 0;
        g.gridx = 0;
        panel.add(label,g);
        g.gridx = 1;
        panel.add(label1,g);
        add(panel);


    }

    public static void main(String[] args) {
        new MySecondApp();
    }
}