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explicit casting from super class to subclass
The assignment Dog dog = (Dog) animal; does not generate a compilation error, but at runtime it generates a ClassCastException . Why can't the compiler detect this error?
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How do I fix “for loop initial declaration used outside C99 mode” GCC error?
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I've gotten this error too.
for (int i=0;i<10;i++) { ..
is not valid in the C89/C90 standard. As OysterD says, you need to do:
int i;
for (i=0;i<10;i++) { ..
Your original code is allowed in C99 and later standards of the C langua...
SQL-Server: Error - Exclusive access could not be obtained because the database is in use
...tabase from one backup file. I made the following code and I am getting an error -
14 Answers
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java.net.SocketException: Connection reset
I am getting the following error trying to read from a socket. I'm doing a readInt() on that InputStream , and I am getting this error. Perusing the documentation this suggests that the client part of the connection closed the connection. In this scenario, I am the server.
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warning: incompatible implicit declaration of built-in function ‘xyz’
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In the case of some programs, these errors are normal and should not be fixed.
I get these error messages when compiling the program phrap (for example). This program happens to contain code that modifies or replaces some built in functions, and when I includ...
What is the difference between supervised learning and unsupervised learning? [closed]
...oblems. Learning through
training in a supervised ANN model also called as error backpropagation algorithm. The error correction-learning
algorithm trains the network based on the input-output
samples and finds error signal, which is the difference of the
output calculated and the desired output and...
Python Image Library fails with message “decoder JPEG not available” - PIL
...L
pip install PIL --upgrade
This resolved the decoder JPEG not available error for me.
UPDATE (4/24/14):
Newer versions of pip require additional flags to download libraries (including PIL) from external sources. Try the following:
pip install PIL --allow-external PIL --allow-unverified PIL
S...
How to check if a symlink exists
...ou can do all these tests and
get an exit status whose value indicates the error condition.
if [ ! \( -e "${file}" \) ]
then
echo "%ERROR: file ${file} does not exist!" >&2
exit 1
elif [ ! \( -f "${file}" \) ]
then
echo "%ERROR: ${file} is not a file!" >&2
exit 2
e...
How can I convert bigint (UNIX timestamp) to datetime in SQL Server?
... +1 for the creative solution! Works great. FYI, there is a syntax error in the SQL. The semi-colon at the end of the first "DECLARE" line needs to be removed since a comma follows.
– Seth
Sep 17 '14 at 14:12
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How do I fix certificate errors when running wget on an HTTPS URL in Cygwin?
...r example, running wget https://www.dropbox.com results in the following errors:
9 Answers
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