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Difference between shadowing and overriding in C#?
...dow
public override int Bar() {return 1;} //override
}
then when you call this:
A clA = new A();
B clB = new B();
Console.WriteLine(clA.Foo()); // output 5
Console.WriteLine(clA.Bar()); // output 5
Console.WriteLine(clB.Foo()); // output 1
Console.WriteLine(clB.Bar()); // output 1
//now let'...
How do I return the response from an asynchronous call?
...nt, return result;, is executed before the function you passed as success callback was even called.
Here is an analogy which hopefully makes the difference between synchronous and asynchronous flow clearer:
Synchronous
Imagine you make a phone call to a friend and ask him to look something up for yo...
Animation CSS3: display + opacity
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to support all browsers.. ?
– david_adler
Oct 25 '13 at 16:41
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How to clear a notification in Android
Is it possible to clear a notification programatically?
14 Answers
14
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Why must wait() always be in synchronized block
We all know that in order to invoke Object.wait() , this call must be placed in synchronized block, otherwise an IllegalMonitorStateException is thrown. But what's the reason for making this restriction? I know that wait() releases the monitor, but why do we need to explicitly acquire the mon...
Long vs Integer, long vs int, what to use and when?
... inherited from Object, such as hashcode. Java.util.collections methods usually use the boxed (Object-wrapped) versions, because they need to work for any Object, and a primitive type, like int or long, is not an Object.
Another difference is that long and int are pass-by-value, whereas Long and In...
What is the exact problem with multiple inheritance?
I can see people asking all the time whether multiple inheritance should be included into the next version of C# or Java. C++ folks, who are fortunate enough to have this ability, say that this is like giving someone a rope to eventually hang themselves.
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Git 'fatal: Unable to write new index file'
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I've been having this same problem for the last few days. Basically, without my knowledge the entire repo had been moved to a new filesystem, when I tried to run git status, it was suddenly reporting that every file in the repo had been udpated.
Possible solutions
So, after much google...
What is data oriented design?
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First of all, don't confuse this with data driven design.
My understanding of Data Oriented Design is that it is about organizing your data for efficient processing. Especially with respect to cache misses etc. Data Driven Design on ...
Condition within JOIN or WHERE
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The relational algebra allows interchangeability of the predicates in the WHERE clause and the INNER JOIN, so even INNER JOIN queries with WHERE clauses can have the predicates rearrranged by the optimizer so that they may already be excluded durin...