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LEFT OUTER JOIN in LINQ
How to perform left outer join in C# LINQ to objects without using join-on-equals-into clauses? Is there any way to do that with where clause?
Correct problem:
For inner join is easy and I have a solution like this
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How to calculate moving average without keeping the count and data-total?
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You can simply do:
double approxRollingAverage (double avg, double new_sample) {
avg -= avg / N;
avg += new_sample / N;
return avg;
}
Where N is the number of samples where you want to average over.
Note that this approximation is ...
When should null values of Boolean be used?
Java boolean allows values of true and false while Boolean allows true , false , and null . I have started to convert my boolean s to Boolean s. This can cause crashes in tests such as
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C＋＋模板的特化 - C/C++ - 清泛网 - 专注C/C++及内核技术
...板能应对各种情形，又需要它对于某个特定的类型（比如bool）有着特别的处理，这中情形下就是需要的了。
既然刚才提到了全特化的标志，那么再说说其他一些共性的东西：
一个特化的模板类的标志：在定义类实现时加上...
Including jars in classpath on commandline (javac or apt)
trying to run this program. I think that to setup all of the web service stuff I need to run apt. (Although using javac I am having the same issue). I think what I am getting is compile errors. (Shown at bottom).
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Large Object Heap Fragmentation
...ation I am working on is suffering from a slow memory leak. I have used CDB with SOS to try to determine what is happening but the data does not seem to make any sense so I was hoping one of you may have experienced this before.
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Creating .pem file for APNS?
How do I create a .pem file to be stored in the hosting server for APN payload data?
11 Answers
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Should I call Close() or Dispose() for stream objects?
...s such as Stream , StreamReader , StreamWriter etc implements IDisposable interface. That means, we can call Dispose() method on objects of these classes. They've also defined a public method called Close() . Now that confuses me, as to what should I call once I'm done with objects? What ...
Combined area of overlapping circles
I recently came across a problem where I had four circles (midpoints and radius) and had to calculate the area of the union of these circles.
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Nginx 403 error: directory index of [folder] is forbidden
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If you have directory indexing off, and is having this problem, it's probably because the try_files you are using has a directory option:
location / {
try_files $uri $uri/ /index.html index.php;
} ^ that is the issue
Remove it and it should work:
location / {
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