抛出异常

• To see if an exception is raised in a certain line of code , you can add an
  要查看在某行代码中是否抛出异常，您可以直接在这行代码之后加入
• The runtime throws an exception if a caller attempts to invoke an invalid operation
  如果呼叫者试图呼叫无效的操作，那么运行时将抛出异常。
• Are method arguments validated and rejected with an exception if they are invalid
  所有方法的参数的合法性是否做验证,对非法的参数是否抛出异常
• If the required relationship is not present , then it throws an exception and raises an alert
  如果所需关系不存在，则该方法抛出异常并发出警报。
• In java code , statements that are expected to throw an exception or a warning are enclosed in a
  在java代码中，希望抛出异常或者警告的语句包含于
• Pattern is not necessary if you simply want undefined cases to raise an exception
  如果您只想在遇到未定义的情况时抛出异常，那么就没必要使用落后的
• However , about 1 3 of the time , the service will fail to create an id and throw an exception
  然而，大约1 / 3的时间，服务未能创建标识以及抛出异常。
• Otherwise , if the protected code threw an exception , the lock might never be released
  否则，如果受保护的代码将抛出异常，锁就有可能永远得不到释放！
• When that behavior is seen , your connector will throw an exception any time and
  如果是这种情况，每当*和?用作文字而不是通配符时，连接器应该抛出异常。
• Technically , you can even throw exceptions freely without too much cost . it s not the throw
  从技术上讲，您甚至可以随意地抛出异常，而不用花费很大的代价。