【Dialog 对话框的这种功能怎么实现的？？】

Question

import javax.swing.JOptionPane;public class Test{
  public static void main(String args[]){
    optionPane MPane = new optionPane();
    MPane.showMessageDialog(null, "xxxxxx");
    System.out.println(MPane.getString());
  }
}class optionPane extends JOptionPane{
  public String getString(){
    return "String From JOptionPane";
  }
}看明白了吗？

Answer 1

哦，你弄错我的意思了。showMessageDialog(null, "xxxxxx");的时候，它所在的线程会停下来，等待这个对话框被关闭才继续运行我要的是这个。System.out.println("对话框被关闭后我才显示！");这句代表其他所有后面的代码，大概不可能用 您的方法实现吧我粗粗看过 Dialog.java 代码，头大，没看出什么

Answer 2

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class DialogTest extends JDialog
{
    private boolean okPressed;
    
    public DialogTest(JFrame owner, String title)
    {
        super(owner, title, true);
        initDialog();
    }    private void initDialog()
    {
        setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
        
        JButton okButton = new JButton("确定");
        okButton.addActionListener(new ActionListener()
        {
            public void actionPerformed(ActionEvent e)
            {
                okPressed = true;
                DialogTest.this.dispose();
            }
        });
        
        JButton cancelButton = new JButton("取消");
        cancelButton.addActionListener(new ActionListener()
        {
            public void actionPerformed(ActionEvent e)
            {
                okPressed = false;
                DialogTest.this.dispose();
            }
        });
        
        JPanel panel = new JPanel();
        panel.add(okButton);
        panel.add(cancelButton);
        
        getContentPane().add(panel, BorderLayout.SOUTH);
    }    public boolean showDialog()
    {
        okPressed = false;
        setVisible(true);
        return okPressed;
    }    public static void main(String[] args)
    {
        DialogTest dlg = new DialogTest(null, "test");
        dlg.setSize(320, 240);
        dlg.setLocation(240, 180);
        if(dlg.showDialog())
            System.out.println("ok pressed");
        else
            System.out.println("cancel pressed");        System.out.println("dialog closed");
        System.exit(0);
    }
}

Answer 3

cbhyk() 谢谢！分不多，很久没来了，只剩30分了 sorry