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Why is there no multiple inheritance in Java, but implementing multiple interfaces is allowed?
...nce is that two classes may define different ways of doing the same thing, and the subclass can't choose which one to pick.
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How does facebook, gmail send the real time notification?
I have read some posts about this topic and the answers are comet, reverse ajax, http streaming, server push, etc.
5 Answer...
Does this app use the Advertising Identifier (IDFA)? - AdMob 6.8.0
I'm currently uploading my App to the App Store and Apple is asking me if this app users IDFA. I'm using the latest Admob SDK or 6.8.0 and I don't know if it uses IDFA or not, and if it does which check boxes should I hit X.X
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Why we should not use protected static in java
...able exists at class level, it does not exist separately for each instance and it does not have an independent existence in classes which extend me.
Think about what protected means:
This variable can be seen by this class, classes in the same package and classes which extend me.
The two mea...
What are the differences between double-dot “..” and triple-dot “…” in Git commit ranges?
Some Git commands take commit ranges and one valid syntax is to separate two commit names with two dots .. , and another syntax uses three dots ... .
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AngularJS : The correct way of binding to a service properties
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Consider some pros and cons of the second approach:
0 {{lastUpdated}} instead of {{timerData.lastUpdated}}, which could just as easily be {{timer.lastUpdated}}, which I might argue is more readable (but let's not argue... I'm giving this poi...
Codesign error: Certificate identity appearing twice
...had the same problem.
It has been fixed.
It came after I submitted an app and installed a few certificates to sign the app.
Quick Fix:
Open up KEYCHAIN ACCESS > click on MY CERTIFICATES> in there you will probably see
iPhone Developer: . You will probably see it TWICE!
Select the one with ...
UITableView : viewForHeaderInSection: not called during reloadData:
I've set up the tableview with correct delegate and datasource linkages.. the reloadData method calls the datasource and the delegate methods except for viewForHeaderInSection: .
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Generate random numbers following a normal distribution in C/C++
How can I easily generate random numbers following a normal distribution in C or C++?
18 Answers
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What exactly do “u” and “r” string flags do, and what are raw string literals?
...no "escape sequences" to represent newlines, tabs, backspaces, form-feeds, and so on. In normal string literals, each backslash must be doubled up to avoid being taken as the start of an escape sequence.
This syntax variant exists mostly because the syntax of regular expression patterns is heavy w...