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Should I use string.isEmpty() or “”.equals(string)?
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The main benefit of "".equals(s) is you don't need the null check (equals will check its argument and return false if it's null), which you seem to not care about. If you're not worried about s being null (or are otherwise checking for it)...
Install tkinter for Python
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It is not very easy to install Tkinter locally to use with system-provided Python. You may build it from sources, but this is usually not the best idea with a binary package-based distro you're apparently running.
It's safer...
Visual Studio Solutions Folder as real Folders
I have a Visual Studio Solution. Currently, it is an empty solution (=no projects) and I have added a few solution folders.
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Debugging WebSocket in Google Chrome
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Chrome developer tools now have the ability to list WebSocket frames and also inspect the data if the frames are not binary.
Process:
Launch Chrome Developer tools
Load your page and initiate the WebSocket connections
Click the Network Tab.
Select the WebSocket ...
android fragment- How to save states of views in a fragment when another fragment is pushed on top o
...the backstack and another fragment (say FragB ) comes to the top. Now on hitting back FragA comes to the top and the onCreateView() is called. Now I had FragA in a particular state before FragB got pushed on top of it.
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Laravel Eloquent: How to get only certain columns from joined tables
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edited Jan 12 '15 at 9:52
Bas Peeters
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What is HTML5 ARIA?
What is HTML5 ARIA? I do not understand how to implement it.
5 Answers
5
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What's the bad magic number error?
What's the "Bad magic number" ImportError in python, and how do I fix it?
15 Answers
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Consistency of hashCode() on a Java string
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I can see that documentation as far back as Java 1.2.
While it's true that in general you shouldn't rely on a hash code implementation remaining the same, it's now documented behaviour for java.lang.String, so changing it would count as breaking existing contracts.
Wherever possible,...
Understanding Spring @Autowired usage
...llows you to skip configurations elsewhere of what to inject and just does it for you. Assuming your package is com.mycompany.movies you have to put this tag in your XML (application context file):
<context:component-scan base-package="com.mycompany.movies" />
This tag will do an auto-scann...