dance-elephant

重擲異常時如何捕獲這個異常?

class OneException extends Exception {
 public OneException(String s){
  super(s);
 }
}
class TowException extends Exception{
 public TowException(String s){
  super(s);
 }
}
public class RethrowNew{
 public static void f()throws OneException{
  System.out.println("originationg the exception in f()");
  throw new OneException("thrown from f()");
 }
 public static void main(String[] agrs)throws Throwable{
  try{
   f();
  }
  catch(OneException e){
   System.err.println("caught in main,e.printstacktrace()");
   e.printStackTrace(System.err);
   throw e;
  }
 }
}
在main()的catch()中我拋出異常e：throw e；但不知這個異常如何被捕獲，哪位
高手可以幫小弟解決一下啊。
上述程序的運行結果如下：
originationg the exception in f()
caught in main,e.printstacktrace()
OneException: thrown from f()
 at RethrowNew.f(RethrowNew.java:15)
 at RethrowNew.main(RethrowNew.java:19)
Exception in thread "main" OneException: thrown from f()//不知道這段信息如何出來
 at RethrowNew.f(RethrowNew.java:15)
 at RethrowNew.main(RethrowNew.java:19)

posted on 2008-07-15 16:35 dance_elephant 閱讀(459) 評論(1)  編輯  收藏