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Struct like objects in Java
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So use overloading... private int _x; public void x(int value) { _x = value; } public int x() { return _x; }
– Gordon
Jan 7 '12 at 20:44
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Django: accessing session variables from within a template?
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You need to add django.core.context_processors.request to your template context processors. Then you can access them like this:
{{ request.session.name }}
In case you are using custom views make sure you are passing a RequestContext instance. Example taken ...
How to use a servlet filter in Java to change an incoming servlet request url?
...ress bar).
Register the filter in web.xml on an url-pattern of /* or /Check_License/*, depending on the context path, or if you're on Servlet 3.0 already, use the @WebFilter annotation for that instead.
Don't forget to add a check in the code if the URL needs to be changed and if not, then just ca...
cv2.imshow command doesn't work properly in opencv-python
... only works with waitKey():
import cv2
img = cv2.imread('C:/Python27/03323_HD.jpg')
cv2.imshow('ImageWindow', img)
cv2.waitKey()
(The whole message-loop necessary for updating the window is hidden in there.)
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Pandas count(distinct) equivalent
...if I have multiple columns that I want to be unique together, like in .drop_duplicates(subset=['col1','col2'])?
– ErnestScribbler
Oct 2 '17 at 8:10
4
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C# 通过代码安装、卸载、启动、停止服务 - .NET(C#) - 清泛IT论坛，有思想、有深度
...sp; IDictionary _SavedState = new Hashtable();
ServiceController service = new ServiceController(serviceName);
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MySQL Orderby a number, Nulls last
...ASC.
A good reference is here http://troels.arvin.dk/db/rdbms#select-order_by
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How to pass parameters to ThreadStart method in Thread?
...legate to execute the thread function.
public class Download
{
string _filename;
Download(string filename)
{
_filename = filename;
}
public void download(string filename)
{
//download code
}
}
Download = new Download(filename);
Thread thread = new Thread...
Golang tests in sub-directory
.../... expands to net and packages in its subdirectories.
If you keep your _test.go files in a subfolder, the 'go test ./...' command will be able to pick them up.
But:
you will need to prefix your exported variables and functions (used in your tests) with the name of your package, in order for the...
Floating point vs integer calculations on modern hardware
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Poor man's FPU/ALU operation benchmark:
#include <stdio.h>
#ifdef _WIN32
#include <sys/timeb.h>
#else
#include <sys/time.h>
#endif
#include <time.h>
#include <cstdlib>
double
mygettime(void) {
# ifdef _WIN32
struct _timeb tb;
_ftime(&tb);
return (double)tb...