Answer / kartik kudada

Yes, It is possible .

java file can be empty.
You could check it eclipse.

Answer / gaurav kumar

yes a java file without any source code is valid java file.
it will compile without any error but while running it gives
error-
"could not find or load main class----"

Answer / la_di

(I suppose you mean IS not IF)

No, an empty file is not a valid java file since you have
to use the same class-name as file name. (A file with a
valid class declaration but an empty body is valid thou)

perpare on factorypattern,linklist wothout using collection, (multitharding ie create producer/customer therad producer create Queue continuesly,consumer consume queue, consumer wait if queue is full,producer wait if queue is empty),diff betn sleep(1000)&wait(1000) these r the main Q ask in huawei(2008)

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