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Java8: Why is it forbidden to define a default method for a method from java.lang.Object
...e design issues that seems "obviously a good idea" until you start digging and you realize that its actually a bad idea.
This mail has a lot on the subject (and on other subjects too.) There were several design forces that converged to bring us to the current design:
The desire to keep the i...
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 ...
Convert PEM to PPK file format
...EM files to PPK files? (you may guess that Amazon EC2 gives me a PEM file, and I need to use the PPK format for SSH connectivity).
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How to tell Xcode where my info.plist and .pch files are
I renamed my project and it's files and now Xcode is still looking for the old info.plist file. Where do I set the locations of the .plist and .pch files that it needs.
...
Difference between System.DateTime.Now and System.DateTime.Today
Can anyone explain the difference between System.DateTime.Now and System.DateTime.Today in C#.NET? Pros and cons of each if possible.
...
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: .
...
Difference between Covariance & Contra-variance
I am having trouble understanding the difference between covariance and contravariance.
5 Answers
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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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Naming convention - underscore in C++ and C# variables
..., its use is always somewhat different to each person. Here's how I understand them for the two languages in question:
In C++, an underscore usually indicates a private member variable.
In C#, I usually see it used only when defining the underlying private member variable for a public property. Ot...
Rebuild or regenerate 'ic_launcher.png' from images in Android Studio
...ates a new project, that dialog lets you point
to some external .PNG file, and then when that dialog completes,
it generates 4 different pixel-sizes of images for use as
a launcher-icon.
...