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Android 4.1: How to check notifications are disabled for the application?
Android 4.1 offers the user a check box to disable notifications for a specific application.
6 Answers
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What Every Programmer Should Know About Memory?
...g how much of Ulrich Drepper's What Every Programmer Should Know About Memory from 2007 is still valid. Also I could not find a newer version than 1.0 or an errata.
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Convert List to List
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The way to make this work is to iterate over the list and cast the elements. This can be done using ConvertAll:
List<A> listOfA = new List<C>().ConvertAll(x => (A)x);
You could also use Linq:
List<A> listOfA = new List<...
When to use wrapper class and primitive type
When I should go for wrapper class over primitive types? Or On what circumstance I should choose between wrapper / Primitive types?
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Get list of a class' instance methods
...hod1/) # => ["method1"]
TestClass.methods.grep(/new/) # => ["new"]
Or you can call methods (not instance_methods) on the object:
test_object = TestClass.new
test_object.methods.grep(/method1/) # => ["method1"]
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How do I vertically align text in a div?
... way to align text with a div. I have tried a few things and none seem to work.
30 Answers
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Is null an Object?
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If null were an Object, it would support the methods of java.lang.Object such as equals(). However, this is not the case - any method invocation on a null results in a NullPointerException.
And this is what the Java Language Specification has to say on this top...
Initialize parent's protected members with initialization list (C++)
Is it possible to use the initialization list of a child class' constructor to initialize data members declared as protected in the parent class? I can't get it to work. I can work around it, but it would be nice if I didn't have to.
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Should I use != or for not equal in T-SQL?
I have seen SQL that uses both != and <> for not equal . What is the preferred syntax and why?
14 Answers
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BroadcastReceiver with multiple filters or multiple BroadcastReceivers?
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instead, you may provide two different intent filters:
filter for refresh only
IntentFilter filterRefresh = new IntentFilter(Params.INTENT_REFRESH);
filter for refresh and update
IntentFilter filterRefreshUpdate = new IntentFilter();
filterRefreshUpdate.addAction(Params.INTENT_REFRES...