t*****n
发帖数: 25 | 1 1. Can one thread deadlock itself?
2. what is the size for the object of a class which only has some non-
virtual member function
3. what is the content in the first four bytes of the object
4. how to destroy an object before the end of its scope
5. a phone book has many names and phone numbers, what structure for the
phone book
6. in a stream of words, count the frequency |
t*****n
发帖数: 25 | 2 2：1 byte
其余期待解答，谢谢！
【在 t*****n 的大作中提到】
: 1. Can one thread deadlock itself?
: 2. what is the size for the object of a class which only has some non-
: virtual member function
: 3. what is the content in the first four bytes of the object
: 4. how to destroy an object before the end of its scope
: 5. a phone book has many names and phone numbers, what structure for the
: phone book
: 6. in a stream of words, count the frequency
|
h******r
发帖数: 33 | 3
It depends. For example, for some JVM implementation, it is 4 bytes.
It depends. For some JVM implementation, it is a pointer/reference pointing
to class type structure.
For q2 and q3, the best source is to refer to Sun JDK's source codes or IBM'
s Jikes RVM's source codes.
【在 t*****n 的大作中提到】
: 1. Can one thread deadlock itself?
: 2. what is the size for the object of a class which only has some non-
: virtual member function
: 3. what is the content in the first four bytes of the object
: 4. how to destroy an object before the end of its scope
: 5. a phone book has many names and phone numbers, what structure for the
: phone book
: 6. in a stream of words, count the frequency
|
c**a
发帖数: 316 | 4 a.~A();
【在 t*****n 的大作中提到】
: 2：1 byte
: 其余期待解答，谢谢！
|
a******8
发帖数: 46 | 5
hash table
【在 t*****n 的大作中提到】
: 1. Can one thread deadlock itself?
: 2. what is the size for the object of a class which only has some non-
: virtual member function
: 3. what is the content in the first four bytes of the object
: 4. how to destroy an object before the end of its scope
: 5. a phone book has many names and phone numbers, what structure for the
: phone book
: 6. in a stream of words, count the frequency
|
