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How to reset postgres' primary key sequence when it falls out of sync?
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If your application cares about gaps in sequences, your application is broken. Gaps in sequences are normal, and can occur due to unplanned database shutdowns, transaction rollbacks after errors, etc.
– Craig Ri...
What's the simplest way to subtract a month from a date in Python?
...with adding or subtracting months: months have different lengths! In some application an exception is appropriate in such cases, in others "the last day of the previous month" is OK to use (but that's truly crazy arithmetic, when subtracting a month then adding a month is not overall a no-operation...
Set HTTP header for one request
I have one particular request in my app that requires Basic authentication, so I need to set the Authorization header for that request. I read about setting HTTP request headers , but from what I can tell, it will set that header for all requests of that method. I have something like this in my cod...
Stateless and Stateful Enterprise Java Beans
... bean is like the session in servlets. Stateful session beans allow your app to still have that session even if there isn't a web client. When the app server fetches a stateless session bean out of the object pool, it knows that it can be used to satisfy ANY request, because it's not associated w...
What happens to an open file handle on Linux if the pointed file gets moved or deleted
What happens to an open file handle on Linux if the pointed file meanwhile gets:
7 Answers
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Disabling user selection in UIWebView
I have an app where I load content to a UIWebView and present this. I cannot disable user interaction completely because I want the user to be able to click links. I just need to disable user selection. I found somewhere in the Internets that you can use:
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Check if application is on its first run [duplicate]
I am new to android development and and I want to setup some of application's attributes based on Application first run after installation. Is there any way to find that the application is running for the first time and then to setup its first run attributes?
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Sending message through WhatsApp
Since I found some older posts, that tell that whatsapp doesn't support this, I was wondering if something had changed and if there is a way to open a whatsapp 'chat' with a number that I'm sending through an intent?
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Why does Eclipse automatically add appcompat v7 library support whenever I create a new project?
Why does Eclipse automatically add appcompat v7 library support whenever I create a new project?
10 Answers
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【最全】谈如何升级aiStarter内置AI伴侣的方式及原理 - App Inventor 2 中...
...来看，关注并使用aiStarter的朋友还是不少，它的优势是与App Inventor 2 是天生融合的，全自动指令交互，用起来简便；不过缺点也是明显的，速度慢，升级内置AI伴侣App较为复杂。相比而言，商业模拟器速度较快，升级AI伴侣非常...