글쓴이 :문귀남 1998년 2월 23일 23:05:15
In Reply to: java.lang.NullPointerException 이라는 에라 posted by 강현민 on 1998년 2월 14일 14:38:03:
도움말에서의 NullPointerException에대한 글입니다.
읽어보시고 왜! 그런지 생각해보세요.
그럼 도움이 되기를....
Thrown when an application attempts to use null in a case where an object is required. These include:
Calling the instance method of a null object.
Accessing or modifying the field of a null object.
Taking the length of null as if it were an array.
Accessing or modifying the slots of null as if it were an array.
Throwing null as if it were a Throwable value.
Applications should throw instances of this class to indicate other illegal uses of the null object.