2015.04.17-1 3*3按鈕

3*3按鈕
import javax.swing.*; import java.awt.*; public class jtest { JButton btn[][]; JFrame mainFrame; JPanel panel; public jtest() { panel = new JPanel(new GridLayout(3, 3)); btn = new JButton[3][3]; for (int x = 0; x < 3; x++) { for (int y = 0; y < 3; y++) { //產生JButton實體物件 btn[x][y] = new JButton(x + "," + y); panel.add(btn[x][y]); } } mainFrame = new JFrame("JButton Array"); mainFrame.getContentPane().add(panel); mainFrame.pack(); mainFrame.setVisible(true); mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); } public static void main(String[] args) { new jtest(); } }