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How many database indexes is too many?
...ntenance whenever data is added to the table. On tables that are primarily read only, lots of indexes are a good thing. On tables that are highly dynamic, fewer is better.
My advice is to cover the common and obvious cases and then, as you encounter issues where you need more speed in getting data ...
Set title background color
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This thread will get you started with building your own title bar in a xml file and using it in your activities
Edit
Here is a brief summary of the content of the link above - This is just to set the color of the text and the back...
How many levels of pointers can we have?
...e C++ standard "recommends" that an implementation support at least 256. (Readability recommends that you not exceed 2 or 3, and even then: more than one should be exceptional.)
– James Kanze
Apr 10 '12 at 10:52
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How do I find the caller of a method using stacktrace or reflection?
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StackTraceElement[] stackTraceElements = Thread.currentThread().getStackTrace()
According to the Javadocs:
The last element of the array represents the bottom of the stack, which is the least recent method invocation in the sequence.
A StackTraceElement has g...
Converting a Java Keystore into PEM Format
...a:45:f9:2f:b5:2d:f4:34:27:e6:53:c7:
bash$ openssl dsa -text -in foo.pem
read DSA key
Enter PEM pass phrase:
Private-Key: (1024 bit)
priv:
00:8f:b1:af:55:63:92:7c:d2:0f:e6:f3:a2:f5:ff:
1a:7a:fe:8c:39:dd
pub:
00:e2:66:5c:e0:2e:da:e0:6b:a6:aa:97:64:59:14:
7e:a6:2e:5a:45:f9:2f:b5:2d:...
Filter output in logcat by tagname
... tag name but I get all the messages which is quite a spam. I just want to read messages from browser which should be something like "browser: " or "webkit: " , but it doesn't work...
Here it is what I get:
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How to delete an app from iTunesConnect / App Store Connect
...e situation in Resolution Center, Notes etc. but it apparently doesn't get read. App Review team are robots.
– Chris Hatton
Oct 14 '14 at 23:22
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How to implement WiX installer upgrade?
...grades, giving a localised error message, and also prevents upgrading an already existing identical version (i.e. only lower versions are upgraded):
<MajorUpgrade
AllowDowngrades="no" DowngradeErrorMessage="!(loc.NewerVersionInstalled)"
AllowSameVersionUpgrades="no"
/>
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What's a concise way to check that environment variables are set in a Unix shell script?
...ourne shell scripts had a colon as the first character. The C Shell would read a script and use the first character to determine whether it was for the C Shell (a '#' hash) or the Bourne shell (a ':' colon). Then the kernel got in on the act and added support for '#!/path/to/program' and the Bourn...
What is the difference between and ?
...t doesn't tell anything about the difference between p and div. And please read How do comment replies work?
– Marcel Korpel
Aug 1 '10 at 10:19
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