Which of the following are true about the File class ? Select two choices.
A. You can perform file I/O operations using its methods.
B. You can find the size of a file using its size() method.
C. You can check if a file exists using its exists() method.
D. You can delete a file using its delete() method.
Answer : C & D
A file class is a abstract representation of file or a directory. You cannot perform any I/O operations using any of the file methods. So option A is incorrect. There is no such method by name size() in File class, to find the size of a file one has to use length() method . So option B is incorrect. exists() and delete() methods exists in File API and they perform the exact functions as mentioned in the Question.
File API for reference.
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