我使用JFrame中的设计面板创建了一个窗口，它没有任何问题。但突然间，当我尝试使用设计编辑窗口时，没有任何显示。我甚至无法运行该窗口，但是如果我从上一页开始运行它，它会显示出来（我使用setVisible方法来执行此操作）。您可以在下面看到我的代码：
import java.awt.EventQueue;
public class seat extends JFrame {
private JPanel contentPane;
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
seat frame = new seat();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
public seat(String from, String to, String time, String date) {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(380, 230, 50, 300);
this.setTitle("Flight Reservation System");
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
JLabel time1 = DefaultComponentFactory.getInstance().createTitle("- " + time);
time1.setBackground(SystemColor.windowBorder);
time1.setForeground(Color.BLACK);
time1.setFont(new Font("Tahoma", Font.PLAIN, 11));
time1.setBounds(338, 16, 55, 25);
contentPane.add(time1);
JLabel from1 = DefaultComponentFactory.getInstance().createTitle(from.substring(0, 3));
from1.setFont(new Font("Tahoma", Font.PLAIN, 11));
from1.setBounds(65, 16, 38, 25);
contentPane.add(from1);
JLabel to1 = DefaultComponentFactory.getInstance().createTitle("- " + to.substring(0, 3));
to1.setFont(new Font("Tahoma", Font.PLAIN, 11));
to1.setBounds(84, 16, 55, 25);
contentPane.add(to1);
date = date.replace(".", "/");
JLabel date1 = DefaultComponentFactory.getInstance().createTitle(date.substring(0, 11));
date1.setFont(new Font("Tahoma", Font.PLAIN, 11));
date1.setBounds(277, 16, 67, 25);
contentPane.add(date1);
JLabel label_14 = new JLabel("");
label_14.setIcon(new ImageIcon("C:\\Users\\Emre\\Desktop\\asdasd.png"));
label_14.setBounds(60, 47, 19, 108);
contentPane.add(label_14);
JLabel a1 = new JLabel(" ");
a1.setIcon(new ImageIcon("C:\\Users\\Emre\\Desktop\\Untitled.png"));
a1.setBounds(71, 58, 39, 43);
contentPane.add(a1);
JLabel koltuk1 = new JLabel(" ");
koltuk1.setIcon(new ImageIcon("C:\\Users\\Emre\\Desktop\\Untitled.png"));
koltuk1.setBounds(109, 58, 38, 43);
contentPane.add(koltuk1);
JLabel koltuk2 = new JLabel(" ");
koltuk2.setIcon(new ImageIcon("C:\\Users\\Emre\\Desktop\\Untitled.png"));
koltuk2.setBounds(147, 58, 38, 43);
contentPane.add(koltuk2);
JLabel label_1 = new JLabel(" ");
label_1.setIcon(new ImageIcon("C:\\Users\\Emre\\Desktop\\Untitled.png"));
label_1.setBounds(185, 58, 38, 43);
contentPane.add(label_1);
JLabel label_2 = new JLabel(" ");
label_2.setIcon(new ImageIcon("C:\\Users\\Emre\\Desktop\\Untitled.png"));
label_2.setBounds(223, 58, 38, 43);
contentPane.add(label_2);
JLabel label_3 = new JLabel(" ");
label_3.setIcon(new ImageIcon("C:\\Users\\Emre\\Desktop\\Untitled.png"));
label_3.setBounds(261, 58, 38, 43);
contentPane.add(label_3);
JLabel label_4 = new JLabel(" ");
label_4.setIcon(new ImageIcon("C:\\Users\\Emre\\Desktop\\Untitled.png"));
label_4.setBounds(299, 58, 38, 43);
contentPane.add(label_4);
JLabel label_5 = new JLabel(" ");
label_5.setIcon(new ImageIcon("C:\\Users\\Emre\\Desktop\\Untitled.png"));
label_5.setBounds(337, 58, 38, 43);
contentPane.add(label_5);
JLabel lblNewLabel_2 = new JLabel(" ");
lblNewLabel_2.setIcon(new ImageIcon("C:\\Users\\Emre\\Desktop\\cccccccccc.png"));
lblNewLabel_2.setBounds(71, 97, 304, 20);
contentPane.add(lblNewLabel_2);
JLabel label_6 = new JLabel(" ");
label_6.setIcon(new ImageIcon("C:\\Users\\Emre\\Desktop\\Untitled.png"));
label_6.setBounds(71, 112, 38, 43);
contentPane.add(label_6);
JLabel label_7 = new JLabel(" ");
label_7.setIcon(new ImageIcon("C:\\Users\\Emre\\Desktop\\Untitled.png"));
label_7.setBounds(109, 112, 38, 43);
contentPane.add(label_7);
JLabel label_8 = new JLabel(" ");
label_8.setIcon(new ImageIcon("C:\\Users\\Emre\\Desktop\\Untitled.png"));
label_8.setBounds(147, 112, 38, 43);
contentPane.add(label_8);
JLabel label_9 = new JLabel(" ");
label_9.setIcon(new ImageIcon("C:\\Users\\Emre\\Desktop\\Untitled.png"));
label_9.setBounds(185, 112, 38, 43);
contentPane.add(label_9);
JLabel label_10 = new JLabel(" ");
label_10.setIcon(new ImageIcon("C:\\Users\\Emre\\Desktop\\Untitled.png"));
label_10.setBounds(223, 112, 38, 43);
contentPane.add(label_10);
JLabel label_11 = new JLabel(" ");
label_11.setIcon(new ImageIcon("C:\\Users\\Emre\\Desktop\\Untitled.png"));
label_11.setBounds(261, 112, 38, 43);
contentPane.add(label_11);
JLabel label_12 = new JLabel(" ");
label_12.setIcon(new ImageIcon("C:\\Users\\Emre\\Desktop\\Untitled.png"));
label_12.setBounds(299, 112, 38, 43);
contentPane.add(label_12);
JLabel label_13 = new JLabel(" ");
label_13.setIcon(new ImageIcon("C:\\Users\\Emre\\Desktop\\Untitled.png"));
label_13.setBounds(337, 112, 38, 43);
contentPane.add(label_13);
JLabel lblNewLabel_3 = new JLabel("");
lblNewLabel_3.setIcon(new ImageIcon("C:\\Users\\Emre\\Desktop\\adsd.png"));
lblNewLabel_3.setBounds(63, 40, 312, 26);
contentPane.add(lblNewLabel_3);
JLabel lblNewLabel_4 = new JLabel("");
lblNewLabel_4.setIcon(new ImageIcon("C:\\Users\\Emre\\Desktop\\seats\\empty.png"));
lblNewLabel_4.setBounds(81, 163, 46, 43);
contentPane.add(lblNewLabel_4);
JLabel label_15 = new JLabel("");
label_15.setIcon(new ImageIcon("C:\\Users\\Emre\\Desktop\\seats\\selected.png"));
label_15.setBounds(164, 166, 46, 43);
contentPane.add(label_15);
JLabel lblNewLabel_5 = new JLabel("");
lblNewLabel_5.setIcon(new ImageIcon("C:\\Users\\Emre\\Desktop\\seats\\booked.png"));
lblNewLabel_5.setBounds(254, 163, 46, 43);
contentPane.add(lblNewLabel_5);
JLabel lblSelected = new JLabel("Selected");
lblSelected.setBounds(202, 176, 57, 14);
contentPane.add(lblSelected);
JLabel lblBooked = new JLabel("Booked");
lblBooked.setBounds(292, 176, 46, 14);
contentPane.add(lblBooked);
JLabel lblEmpty = new JLabel("Empty");
lblEmpty.setBounds(118, 176, 46, 14);
contentPane.add(lblEmpty);
JButton btnContinue = new JButton("Next");
btnContinue.setBounds(359, 227, 62, 23);
contentPane.add(btnContinue);
btnContinue.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent arg0) {
data page = new data();
page.setVisible(true);
setVisible(false);
}
});
}
public seat() {
// TODO Auto-generated constructor stub
}
}
答案 0 :(得分：2)
在public static void main中，只调用空构造函数。您必须使用包含构建GUI的代码的参数调用构造函数。
答案 1 :(得分：1)
而不是使用
调用标准构造函数seat frame = new seat();
你必须用
来调用它seat frame = new seat("from", "to", "time", "date");