如何在不等待用户的Gui输入的情况下停止Java运行整个代码

如何在不等待用户的Gui输入的情况下停止Java运行整个代码

您不应该让Jframe启动其他Jframe，尤其是如果您希望子窗口充当模式对话框时，这种对话框会在启动窗口中暂停代码，直到完全处理完为止。如果是这样的话，使对话窗口
对话框 在地方Jframes的对话窗口的使用模式JDialogs。

例如：

import java.awt.*;import java.awt.event.*;import javax.swing.*;public class MainWelcomeGui2 {   public static void main(String[] args) {      final Jframe frame = new Jframe("Main GUI");      JButton addDeptButtonLaunchJframe = new JButton( "Add a New Department, Launch Jframe");      JButton addDeptButtonLaunchJDialog = new JButton( "Add a New Department, Launch JDialog");      addDeptButtonLaunchJDialog.addActionListener(new LaunchJDialogListener( frame));      addDeptButtonLaunchJframe.addActionListener(new LaunchJframeListener());      JPanel panel = new JPanel();      panel.add(addDeptButtonLaunchJDialog);      panel.add(addDeptButtonLaunchJframe);      frame.add(panel);      frame.setDefaultCloseOperation(Jframe.EXIT_ON_CLOSE);      frame.pack();      frame.setLocationRelativeTo(null);      frame.setVisible(true);   }}class LaunchJDialogListener implements ActionListener {   JDialog dialog;   public LaunchJDialogListener(Jframe parentframe) {      JButton doneButton = new JButton(new AbstractAction("Done") {         public void actionPerformed(ActionEvent e) { dialog.dispose();         }      });      JPanel panel = new JPanel();      panel.setPreferredSize(new Dimension(100, 100));      panel.add(doneButton);      dialog = new JDialog(parentframe, "Dialog", true);      dialog.add(panel);      dialog.pack();      dialog.setLocationRelativeTo(null);   }   @Override   public void actionPerformed(ActionEvent e) {      System.out.println("called before setting dialog visible");      dialog.setVisible(true);      System.out .println("called after setting dialog visible. Note that this line doesn't show until the dialog disappears");   }}class LaunchJframeListener implements ActionListener {   Jframe frame;   public LaunchJframeListener() {      JButton doneButton = new JButton(new AbstractAction("Done") {         public void actionPerformed(ActionEvent e) { frame.dispose();         }      });      JPanel panel = new JPanel();      panel.setPreferredSize(new Dimension(100, 100));      panel.add(doneButton);      frame = new Jframe("Jframe");      frame.add(panel);      frame.pack();      frame.setLocationRelativeTo(null);   }   @Override   public void actionPerformed(ActionEvent e) {      System.out.println("called before setting frame visible");      frame.setVisible(true);      System.out .println("called after setting frame visible.  Note that this line shows up immediately.");   }}