Java tutorial
import java.awt.BorderLayout; import java.awt.FlowLayout; import java.awt.GridLayout; import javax.swing.ButtonGroup; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JRadioButton; public class Main { public static void main(String[] args) { JFrame frame = new JFrame(); frame.setLayout(new BorderLayout()); frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); JPanel northPanel = new JPanel(new GridLayout(2, 1)); JPanel welcomePanel = new JPanel(new FlowLayout(FlowLayout.CENTER)); welcomePanel.add(new JLabel("Welcome")); northPanel.add(welcomePanel); JPanel radioPanel = new JPanel(new FlowLayout(FlowLayout.CENTER)); JRadioButton button1 = new JRadioButton("Button 1", true); JRadioButton button2 = new JRadioButton("Button 2", false); ButtonGroup group = new ButtonGroup(); group.add(button1); group.add(button2); radioPanel.add(button1); radioPanel.add(button2); northPanel.add(radioPanel); JPanel middlePanel = new JPanel(new GridLayout(3, 3)); for (int i = 0; i < 3; i++) { for (int j = 0; j < 3; j++) { middlePanel.add(new JButton("Button " + i + j)); } } JPanel southPanel = new JPanel(new FlowLayout(FlowLayout.CENTER)); southPanel.add(new JLabel("Whose turn:")); southPanel.add(new JButton("Reset")); frame.add(northPanel, BorderLayout.NORTH); frame.add(middlePanel, BorderLayout.CENTER); frame.add(southPanel, BorderLayout.SOUTH); frame.pack(); frame.setVisible(true); } }