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What is the purpose of a question mark after a type (for example: int? myVariable)?
...<Int32>, pronounced "Nullable of Int32," can be assigned any
value from -2147483648 to 2147483647, or it can be assigned the null
value. A Nullable<bool> can be assigned the values true, false, or
null. The ability to assign null to numeric and Boolean types is
especially useful ...
Shared-memory objects in multiprocessing
..., where one process holds the memory and a manager arbitrates access to it from other processes (even over a network).
The Manager approach can be used with arbitrary Python objects, but will be slower than the equivalent using shared memory because the objects need to be serialized/deserialized an...
Adjust UILabel height to text
...straint leading/trailing for your UILabel
And change the lines of UILabel from 1 to 0
For iOS7
First, you need to add contains height for UILabel
Then, modify the Relation from Equal to Greater than or Equal
Finally, change the lines of UILabel from 1 to 0
Your UILabel will automa...
inject bean reference into a Quartz job in Spring?
...t since it searches for a web application context. I had to use the answer from @jelies
– Wim Deblauwe
Jan 20 '15 at 16:23
5
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Notification passes old Intent Extras
...vity(context, 0, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
From the doc for PendingIntent.FLAG_UPDATE_CURRENT:
If the described PendingIntent already exists, then keep it but replace its extra data with what is in this new Intent. This can be used if you are creating intents wher...
POSTing a @OneToMany sub-resource association in Spring Data REST
... Should this also work with a patch request as in moving the comment from one post to another?
– aycanadal
Jun 25 '15 at 14:16
2
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How can you do anything useful without mutable state?
...tand the syntax and underlying principles, then your eyes just glaze over. From your point of view, it looks as if I'm doing the same thing as an imperative language, but just setting up all kinds of boundaries to purposefully make programming more difficult. My point of view, you're just experienci...
error: No resource identifier found for attribute 'adSize' in package 'com.google.example' main.xml
...
I had the same problem. I copied the example code from Google code, and could not compile.
xmlns:ads="http://schemas.android.com/apk/res/com.google.example"
Finally, I figured it out. The last part of the code "com.google.example", is their package name, so you need to re...
Preventing form resubmission
... page 2. I have a series of forms , form1 , form2 , form3. how can go back from form"n" to form"n-1" seamlessly. Random question: Where did you study the PRG design pattern
– Rpant
Oct 7 '15 at 3:37
...
Why is there no Tree class in .NET?
...
What would you want from such an implementation?
Binary tree?
Red-black?
Radix tree?
B-tree?
R-tree?
R*-tree?
A tree is more a pattern than a data structure, and they tend to be used where performance matters (so implementation details probabl...