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Why can't I define a static method in a Java interface?
... little background on how instance methods work is necessary to understand what's going on here. I'm sure the actual implementation is quite different, but let me explain my notion of method dispatch, which models observed behavior accurately.
Pretend that each class has a hash table that maps meth...
drag drop files into standard html file input
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Waaaaaaaat! That works!? That's exactly what I was looking for. Didn't work 2 years ago. Awesome! Of course it doesn't work in IE =) The important question: is there reliable feature detection?, so you can hide the dropzone in IE, bc it won't work.
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Clicking URLs opens default browser
I have loaded an external URL in my WebView . Now what I need is that when the user clicks on the links on the page loaded, it has to work like a normal browser and open the link in the same WebView . But it's opening the default browser and loading the page there?
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How to position a table at the center of div horizontally & vertically
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What is testHeight here?
– Ajay Kulkarni
Sep 11 '15 at 5:48
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What is the exact problem with multiple inheritance?
...el does that perfectly well! (and without introducing arbitrary choices or whatever)
E.g. if you inherit from A and B, both having method foo(), then of course you don't want an arbitrary choice in your class C inheriting from both A and B.
You have to either redefine foo so it's clear what will be...
What is a non-capturing group in regular expressions?
How are non-capturing groups, i.e. (?:) , used in regular expressions and what are they good for?
15 Answers
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Copy existing project with a new name in Android Studio
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As free3dom pointed out, here's what should be done:
Create a copy using file manager
Manually edit the app's build.gradle file to change the package name (you can use the file manager).
Manually edit AndroidManifest.xml to change the package name.
Run gr...
Why are preprocessor macros evil and what are the alternatives?
... source code will have the macro name, and many debuggers, you can't "see" what the macro translates to. So you don't actually know what is going on.
Replacement: Use enum or const T
For "function-like" macros, because the debugger works on a "per source line where you are" level, your macro wil...
Rails Observer Alternatives for 4.0
With Observers officially removed from Rails 4.0 , I'm curious what other developers are using in their place. (Other than using the extracted gem.) While Observers were certainly abused and could easily become unwieldily at times, there were many use-cases outside of just cache-clearing where they...
Converting between datetime, Timestamp and datetime64
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@hayden: What is your numpy version? Mine: numpy.__version__ -> '1.6.1'
– jfs
Dec 4 '12 at 18:11
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