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| 14. 45. 1. 使用JPanel作为一个容器 |
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JPanel components are opaque, while JComponents are not opaque |
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import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class PanelWithComponents {
public static void main(String[] a) {
JPanel panel = new JPanel();
JButton okButton = new JButton("OK");
panel.add(okButton);
JButton cancelButton = new JButton("Cancel");
panel.add(cancelButton);
JFrame frame = new JFrame("Oval Sample");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(panel);
frame.setSize(300, 200);
frame.setVisible(true);
}
}
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