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Guaranteed lifetime of temporary in C++?
...C team on that walks through this in great detail and I encourage folks to read it.
The pedagogical example for moving rvalue's is temporary strings and I'll show assignment in a constructor. If I have a class MyType that contains a string member variable, it can be initialized with an rvalue in t...
Java - escape string to prevent SQL injection
...ore, but working with PreparedStatements is also much easier and much more readable. That alone probably makes them the default for every programmer who knows about them.
– Edan Maor
Nov 28 '09 at 18:54
...
How to validate phone numbers using regex
...he first comment on this answer about the "Complicator's Gloves" is a good read... sometimes the answer to a problem is to approach it differently.
– scunliffe
Mar 30 '12 at 20:19
...
How to pass the values from one activity to previous activity
...object.
After a serialized object has been written into a file, it can be read from the file and deserialized that is, the type information and bytes that represent the object and its data can be used to recreate the object in memory.
If you want tutorial for this refer this link
http://javawiths...
Transfer-Encoding: gzip vs. Content-Encoding: gzip
...e according to the client's supported encodings (if the file data is not already stored in that encoding), indicate in the Content-Encoding response header which encoding is being used. The client can then read data off of the socket based on the Transfer-Encoding (ie, chunked) and then decode it b...
C++ templates that accept only certain types
...lem with that is that the error messages you get are going to be tricky to read. It is nevertheless a very common way to do this. The standard library is full of function or class templates that expect certain behavior from the template type, and do nothing to check that the types used are valid.
...
Difference between SelectedItem, SelectedValue and SelectedValuePath
...ritten book on Silverlight? I don't believe I'm talking to you. :-)... I'm reading this book nowadays. Really an awesome work. :-)
– Nawaz
Feb 4 '11 at 20:14
...
Returning value from called function in a shell script
...true" ]
then
echo "directory not created"
else
echo "directory already created"
fi
2. Return exit status
lockdir="somedir"
testlock(){
if mkdir "$lockdir"
then # Directory did not exist, but was created successfully
echo >&2 "successfully acquired lock: $lockdir"...
ExecuteReader requires an open and available Connection. The connection's current state is Connectin
...nstead of closing it. Once the
connection is returned to the pool, it is ready to be reused on the
next Open call.
So obviously there's no reason to avoid creating,opening or closing connections since actually they aren't created,opened and closed at all. This is "only" a flag for the connecti...
Preferred way of loading resources in Java
... (it will need to be in the same directory as classes in that package).
Thread.currentThread().getContextClassLoader().getResource(name)
will load with the context class loader but will not resolve the name according to any package (it must be absolutely referenced)
System.class.getResource(name...