你当然想看看How to Make Dialogs并查看JDialog
API。这里有一个简短的例子来开始。你可以将它与你现在正在做的事情进行比较。
import java.awt.EventQueue;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.ButtonGroup;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
public class DialogTest extends JDialog implements ActionListener {
private static final String TITLE = "Season Test";
private enum Season {
WINTER("Winter"), SPRING("Spring"), SUMMER("Summer"), FALL("Fall");
private JRadioButton button;
private Season(String title) {
this.button = new JRadioButton(title);
}
}
private DialogTest(JFrame frame, String title) {
super(frame, title);
JPanel radioPanel = new JPanel();
radioPanel.setLayout(new GridLayout(0, 1, 8, 8));
ButtonGroup group = new ButtonGroup();
for (Season s : Season.values()) {
group.add(s.button);
radioPanel.add(s.button);
s.button.addActionListener(this);
}
Season.SPRING.button.setSelected(true);
this.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
this.add(radioPanel);
this.pack();
this.setLocationRelativeTo(frame);
this.setVisible(true);
}
@Override
public void actionPerformed(ActionEvent e) {
JRadioButton b = (JRadioButton) e.getSource();
JOptionPane.showMessageDialog(null, "You chose: " + b.getText());
}
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
new DialogTest(null, TITLE);
}
});
}
}
添加一个ActionListener添加到按钮(例如http://java.sun.com/docs/books/tutorial/uiswing/events/actionlistener.html),其中打开第二个对话框。 – Searles 2010-04-18 17:48:05
关于编辑,您应该了解类名和成员名之间的区别,您还应该查看变量的范围。在你的情况NewJDialog是一个类名称,因为这个类不存在,你会得到错误。 – Searles 2010-04-18 23:38:32
@Searles:好点。该名称让人联想到NetBeans GUI编辑器生成的名称。一个相关的例子在这里讨论:http://stackoverflow.com/questions/2561480 – trashgod 2010-04-19 03:36:22