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What is the actual use of Class.forName(“oracle.jdbc.driver.OracleDriver”) while connecting to a dat
...rent classloader. There is no fundamental difference between writing
Class<?> driverClass = Class.forName("oracle.jdbc.driver.OracleDriver");
// and
Class<?> stringClass = Class.forName("java.lang.String");
Class.forName("com.example.some.jdbc.driver") calls show up in legacy code that ...
Set database timeout in Entity Framework
My command keeps timing out, so I need to change the default command timeout value.
9 Answers
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Need to log asp.net webapi 2 request and response body to a database
...AndResponseHandler : DelegatingHandler
{
protected override async Task<HttpResponseMessage> SendAsync(
HttpRequestMessage request, CancellationToken cancellationToken)
{
if (request.Content != null)
{
// log request body
string requestBod...
vector vs. list in STL
...he allocator. It would be extremely hard to prepare an example, where list<int> beats vector<int>. And even then, deque<int> may be better or close, not justyfing the use of lists, which will have greater memory overhead.
However, if you are dealing with large, ugly blobs of data ...
Where do “pure virtual function call” crashes come from?
...
They can result if you try to make a virtual function call from a constructor or destructor. Since you can't make a virtual function call from a constructor or destructor (the derived class object hasn't been constructed or has already b...
delete word after or around cursor in VIM
...mal mode, delete the current word and then put you back in insert:
:imap <C-d> <C-[>diwi
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Python Flask, how to set content type
...tual Content-Type is based on the mimetype parameter and the charset (defaults to UTF-8).
Response (and request) objects are documented here: http://werkzeug.pocoo.org/docs/wrappers/
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Read/write to Windows registry using Java
...
I know this question is old, but it is the first search result on google to "java read/write to registry". Recently I found this amazing piece of code which:
Can read/write to ANY part of the registry.
DOES NOT USE JNI.
DOES NOT USE ANY 3rd PARTY/EXTERNAL APPLICATIONS TO WORK.
DOE...
Collections.emptyList() vs. new instance
...
The implementation of emptyList looks as follows:
public static final <T> List<T> emptyList() {
return (List<T>) EMPTY_LIST;
}
So if your method (which returns an empty list) is called very often, this approach may even give you slightly better performance both CPU and me...
When should iteritems() be used instead of items()?
...3.3
>>> d = {'one':'1', 'two':'2'}
>>> type(d.items())
<class 'dict_items'>
>>>
>>> type(d.keys())
<class 'dict_keys'>
>>>
>>>
>>> ii = iter(d.items())
>>> type(ii)
<class 'dict_itemiterator'>
>>>
>...