以下的代碼是如何實(shí)現(xiàn)事件處理過(guò)程的？（）  
class HelllWordFrame_jButton4_actionAdapter implements    
ActionListener { 
HelloWorldFrame adaptee； 
HelloworldFrame_jButton4_actionAdapter（HelloWorldFrame adaptee）{       this.adaptee=adaptee；} 
public void actionPerformed（ActionEvent e）{       
adaptee，jButton4_actionPerfomed（e）；}  }