import javax.swing.*; import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; public class MainScreen implements ActionListener { public JFrame frame = new JFrame(); public GridBagConstraints c = new GridBagConstraints(); public JButton myButton = new JButton("Start"); public JLabel myLabel = new JLabel("Minesweeper"); public MainScreen() { myButton.setBounds(160,160,100,50); myButton.setPreferredSize(new Dimension(160,80)); myButton.setFocusable(false); myButton.addActionListener(this); myLabel.setFont(new Font("Arial", Font.BOLD, 24)); myLabel.setHorizontalAlignment(JLabel.CENTER); myLabel.setPreferredSize(new Dimension(200,200)); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setTitle("Minesweeper"); frame.setSize(420,420); frame.setLayout(new GridBagLayout()); frame.setLocationRelativeTo(null); frame.setVisible(true); c.gridx = 0; c.gridy = 0; c.ipadx = 0; c.ipady = 2; c.weightx = 1.0; c.weighty = 1.0; c.fill = GridBagConstraints.NONE; c.anchor = GridBagConstraints.CENTER; frame.add(myLabel, c); c.gridy = 1; frame.add(myButton, c); } @Override public void actionPerformed(ActionEvent e) { if(e.getSource() == myButton){ GameScreen myScreen = new GameScreen(5,5,23); frame.dispose(); } } }