相关疑难解决方法(0)

我想在Java中做这样的事情,但我不知道如何:

当事件"对象1说'你好''发生时,对象2通过说"你好"来响应该事件.

有人可以给我一个提示或示例代码吗？

我有一个没有响应的应用程序,似乎陷入僵局或类似僵局.请参阅下面的两个主题.请注意,My-Thread@101c线程阻塞AWT-EventQueue-0@301.但是,My-Thread刚刚打过电话java.awt.EventQueue.invokeAndWait().所以AWT-EventQueue-0块My-Thread(我相信).

My-Thread@101c, priority=5, in group 'main', status: 'WAIT'
     blocks AWT-EventQueue-0@301
      at java.lang.Object.wait(Object.java:-1)
      at java.lang.Object.wait(Object.java:485)
      at java.awt.EventQueue.invokeAndWait(Unknown Source:-1)
      at javax.swing.SwingUtilities.invokeAndWait(Unknown Source:-1)
      at com.acme.ui.ViewBuilder.renderOnEDT(ViewBuilder.java:157)
        .
        .
        .
      at com.acme.util.Job.run(Job.java:425)
      at java.lang.Thread.run(Unknown Source:-1)

AWT-EventQueue-0@301, priority=6, in group 'main', status: 'MONITOR'
     waiting for My-Thread@101c
      at com.acme.persistence.TransactionalSystemImpl.executeImpl(TransactionalSystemImpl.java:134)
        .
        .
        .
      at com.acme.ui.components.MyTextAreaComponent$MyDocumentListener.insertUpdate(MyTextAreaComponent.java:916)
      at javax.swing.text.AbstractDocument.fireInsertUpdate(Unknown Source:-1)
      at javax.swing.text.AbstractDocument.handleInsertString(Unknown Source:-1)
      at javax.swing.text.AbstractDocument$DefaultFilterBypass.replace(Unknown Source:-1)
      at javax.swing.text.DocumentFilter.replace(Unknown Source:-1)
      at com.acme.ui.components.FilteredDocument$InputDocumentFilter.replace(FilteredDocument.java:204)
      at javax.swing.text.AbstractDocument.replace(Unknown Source:-1)
      at javax.swing.text.JTextComponent.replaceSelection(Unknown Source:-1)
      at …