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Can I have multiple Xcode versions installed?
Is it possible to have more than one version of Xcode installed at the same time?
12 Answers
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Any reason to clean up unused imports in Java, other than reducing clutter?
... the list interface.
In Eclipse you can always use a shortcut (depends on OS - Win: Ctrl + SHIFT + O and Mac: COMMAND + SHIFT + O) to organize the imports. Eclipse then cleans up the import section removes all the stale imports etc. If you are needing a imported thing again eclipse will add them au...
Fastest sort of fixed length 6 int array
...inds of data. For example, insertion sort performs better on sorted or almost-sorted dat, so it will be the better choice if there's an above-average chance of almost-sorted data.
The algorithm you posted is similar to an insertion sort, but it looks like you've minimized the number of swaps at th...
What is the fastest integer division supporting division by zero no matter what the result is?
...metic and the use of condition flags are invented in hardware for this purpose. In general condition flags are only accessible in C through using idiom. That is why it so hard to make a portable multiple precision integer library in C without resorting to (inline) assembly. My guess is that most dec...
When to favor ng-if vs. ng-show/ng-hide?
...from DOM. This means that all your handlers or anything else attached to those elements will be lost. For example, if you bound a click handler to one of child elements, when ng-if evaluates to false, that element will be removed from DOM and your click handler will not work any more, even after ng-...
Stack smashing detected
...-protector while compiling. In that case you will get a different error, most likely a segmentation fault as you are trying to access an illegal memory location. Note that -fstack-protector should always be turned on for release builds as it is a security feature.
You can get some information abo...
What is the garbage collector in Java?
...eating new objects, such as Strings and Files, but after a certain time, those objects are not used anymore. For example, take a look at the following code:
for (File f : files) {
String s = f.getName();
}
In the above code, the String s is being created on each iteration of the for loop. Thi...
Retaining file permissions with Git
...o you:
bundle your repo and save the associated file permissions.
copy those two files on the remote server
restore the repo there, and apply the permission
share
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How to implement a ViewPager with different Fragments / Layouts
...at the imports. I am using the android.support.v4 package.
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.v...
Nginx no-www to www and www to no-www
... 80;
server_name www.example.com;
...
}
HTTPS Solution
For those who want a solution including https://...
server {
listen 80;
server_name www.domain.com;
# $scheme will get the http protocol
# and 301 is best practice for tablet, phone, desktop and seo...