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Android: Go back to previous activity
...m another activity with startActivityForResult. In that case you can just call the finishActivity() function from your code and it'll take you back to the previous activity.
Keep track of the activity stack. Whenever you start a new activity with an intent you can specify an intent flag like FLAG_AC...
git: updates were rejected because the remote contains work that you do not have locally
I'm working on a team with a few developers using git on BitBucket. We are all working on a dev branch, not pushing to master until a release.
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How to do something to each file in a directory with a batch script
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Another way:
for %f in (*.mp4) do call ffmpeg -i "%~f" -vcodec copy -acodec copy "%~nf.avi"
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ConcurrentHashMap vs Synchronized HashMap
...ion that ConcurrentHashMap's size() result could be out of date. size() is allowed to return an approximation instead of an exact count according to "Java Concurrency in Practice" book. So this method should be used carefully.
– Andrii Lisun
Nov 8 '18 at 15:24
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gem install: Failed to build gem native extension (can't find header files)
I am using Fedora 14 and I have MySQL and MySQL server 5.1.42 installed and running.
Now I tried to do this as root user:
1...
How to maintain aspect ratio using HTML IMG tag
... The size is fixed, the aspect ratio is not, as the question was specifically about any image of any resolution. Including resolutions smaller than 64x64.
– Koenigsberg
Jul 31 '18 at 8:50
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Check if bash variable equals 0 [duplicate]
...and appears empty to bash. You can verify this using the below tests which all evaluate to true because xyz is either empty or unset:
if [ -z ] ; then echo "true"; else echo "false"; fi
xyz=""; if [ -z "$xyz" ] ; then echo "true"; else echo "false"; fi
unset xyz; if [ -z "$xyz" ] ; then echo "t...
How to download a Nuget package without nuget.exe or Visual Studio extension?
...st tried this, and it looks like the link is now over to the right and is called "Manual download".
– RenniePet
Sep 22 '17 at 15:13
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How to center absolute div horizontally using CSS?
I've a div and want it to be centered horizontally - although I'm giving it margin:0 auto; it's not centered...
8 Answers...
Keep SSH session alive [closed]
...om
ServerAliveInterval 240
To enable sending a keep-alive signal for all hosts, place the following contents in the configuration file:
Host *
ServerAliveInterval 240
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