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

public class AnimalGrid extends JFrame {
    JButton dog = new JButton("Dog");
    JButton cat = new JButton("Cat");
    JButton bird = new JButton("Bird");
    JButton pig = new JButton("Pig");
    JButton mouse = new JButton("Mouse");
    JButton lion = new JButton("Lion");
    JButton tiger = new JButton("Tiger");
    JButton bear = new JButton("Bear");
    JButton deer = new JButton("Deer");

    public AnimalGrid() {
        super("Animal GridLayout");
        setSize(260, 260);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        JPanel pane = new JPanel();
        GridLayout nature = new GridLayout(3, 3, 10, 10);
        pane.setLayout(nature);
        pane.add(dog);
        pane.add(cat);
        pane.add(bird);
        pane.add(pig);
        pane.add(mouse);
        pane.add(lion);
        pane.add(tiger);
        pane.add(bear);
        pane.add(deer);
        add(pane);
        setVisible(true);
    }

    public static void main(String[] arguments) {
        AnimalGrid frame = new AnimalGrid();
    }
}