相关疑难解决方法(0)

我通过使用Executor玩SwingWorker的多线程,我在那里错误地从Vector中识别出错误的元素,看起来像这个代码相当忽略了Vector中的元素不存在

我的问题 - >如何/有可能以某种方式捕获此异常

简单的输出

run:
Thread Status with Name :StartShedule, SwingWorker Status is STARTED
Thread Status with Name :StartShedule, SwingWorker Status is DONE
Thread Status with Name :StartShedule, SwingWorker Status is STARTED
Thread Status with Name :StartShedule, SwingWorker Status is DONE
Thread Status with Name :StartShedule, SwingWorker Status is STARTED
Thread Status with Name :StartShedule, SwingWorker Status is DONE
BUILD SUCCESSFUL (total time: 11 seconds)

通过取消注释

//changeTableValues1(); // un-comment for get ArrayIndexOutOfBoundsException

一切都正确,我得到ArrayIndexOutOfBoundsException并输出

run:
Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: …

我有一个消息标签和一个提交按钮.将多次按下提交按钮,每次按下的操作最多可能需要一分钟.

按下按钮时,我想将消息设置为空,在任务完成后,我想将消息设置为"完成".

private void submitActionPerformed(java.awt.event.ActionEvent evt) {
   message = "";
   updateMessageLabel();

   doTheTask();

   /* this update is apply to the label after completion */
   message = "Complete";
}

是否可以在submitActionPerformed()方法运行之前(或在方法中)更新该消息标签,但是在单击按钮之后？