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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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Pointer vs. Reference
What would be better practice when giving a function the original variable to work with:
12 Answers
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What is the email subject length limit?
How many characters are allowed to be in the subject line of Internet email?
I had a scan of The RFC for email but could not see specifically how long it was allowed to be.
I have a colleague that wants to programmatically validate for it.
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