Java 使用 joptionpane 退出程序
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Using joptionpane to exit the program
提问by Mian Asbat Ahmad
I have a gui java program that count the number of files (if any) in a folder and store their names in an array for processing. In the case when no files are available to process, I want to display a joptionpane with the message " No files are available to process. Please click the exit button to exit the system ".
我有一个 gui java 程序，它计算文件夹中文件（如果有）的数量，并将它们的名称存储在一个数组中以供处理。在没有文件可处理的情况下，我想显示一个带有消息“没有文件可处理。请单击退出按钮退出系统”的 joptionpane。
How can I exit the system when the user click the button of the joptionpane? Something like
当用户单击 joptionpane 的按钮时如何退出系统？就像是
if (array.length == 0){
JOptionPane.show .......
{
System.exit(0);
}
}
采纳答案by David Yee
You can store the return value of the JOptionPaneas such:
您可以这样存储返回值JOptionPane：
int result = JOptionPane.showConfirmDialog(window,
"Are you sure you want to quit?",
"Confirm Quit", JOptionPane.YES_NO_CANCEL_OPTION);
if (result == JOptionPane.YES_OPTION) System.exit(0);
回答by Mian Asbat Ahmad
Thanks David for your help. The following is what I was looking for.
感谢大卫的帮助。以下是我正在寻找的内容。
if (filesToCompileArray.length == 0){
int result = JOptionPane.showConfirmDialog(null,
"No failure found in the SUT and no files are generated to process further",
"Confirm Quit", JOptionPane.DEFAULT_OPTION);
if (result == 0) System.exit(0);
}
