Java - 如何为Yes和No选项添加JOptionPane [英] Java - How to add a JOptionPane for Yes and No options

问题描述

所以，我已经阅读了Java API，但似乎仍无法就如何做到这一点做出正面或反面。相信我，我已经尝试过了。我想要一个ActionListener来生成一个带有你真的想要退出吗？文本的消息框，选项是和否退出程序，取决于所选择的按钮。

So, I've read the Java API, but still can't seem to make heads or tails about how to do this. And believe me I have tried. I want an ActionListener to cause a message box with the text 'Do you really want to exit?', with options yes and no which exits the program or not depending on the selected button.

这是我在开始使用消息框打破它之前对ActionListener的所有内容：

Here's what I have for the ActionListener before I started to break it with the message box:

exitItem.addActionListener(
                new ActionListener() {
                    public void actionPerformed(ActionEvent arg0) {
                        window.dispose();
                    }
                }
                );

如何根据我的要求适当更改？

How can I suitably change it to meet my requirements?

推荐答案

我想你想在你的 ActionListener 中做这样的事情：

I think you want to do something like this inside your ActionListener:

int selectedOption = JOptionPane.showConfirmDialog(null, 
                                  "Do you wanna close the window?", 
                                  "Choose", 
                                  JOptionPane.YES_NO_OPTION); 
if (selectedOption == JOptionPane.YES_OPTION) {
    window.dispose();
}

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