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What are the reasons why Map.get(Object key) is not (fully) generic

What are the reasons behind the decision to not have a fully generic get method in the interface of java.util.Map<K, V> . ...
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Android: How to bind spinner to custom object list?

In the user interface there has to be a spinner which contains some names (the names are visible) and each name has its own ID (the IDs are not equal to display sequence). When the user selects the name from the list the variable currentID has to be changed. ...
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When to encode space to plus (+) or %20?

Sometimes the spaces get URL encoded to the + sign, some other times to %20 . What is the difference and why should this happen? ...
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How to change ViewPager's page?

... ViewPager in my app and define it in the main Activity. Inside onCreate method I load some number of pages from SharedPreferences and then pass it to PagerAdapter: ...
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How to get an IFrame to be responsive in iOS Safari?

The problem is that when you have to use IFrames to insert content into a website, then in the modern web-world it is expected that the IFrame would be responsive as well. In theory it's simple, simply aider use <iframe width="100%"></iframe> or set the CSS width to iframe { width: 10...
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What is the purpose of a self executing function in javascript?

...ion. This allows code to be written without concern of how variables are named in other blocks of JavaScript code. For example, as mentioned in a comment by Alexander: (function() { var foo = 3; console.log(foo); })(); console.log(foo); This will first log 3 and then throw an ...
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Intersection of two lists in Bash

...ally sorts its output, but other uses may need to do this: comm -12 <(some-command | sort) <(some-other-command | sort) – Alexander Bird Jan 15 '15 at 21:11 12 ...
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Type erasure techniques

(With type erasure, I mean hiding some or all of the type information regarding a class, somewhat like Boost.Any.) I want to get a hold of type erasure techniques, while also sharing those, which I know of. My hope is kinda to find some crazy technique that somebody thought of in his/her darkest h...
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How do you specify that a class property is an integer?

I'm experimenting with TypeScript, and in the process of creating a class with an "ID" field that should be an integer, I have gotten a little confused. ...
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Where do the Python unit tests go?

...ere are several commonly accepted places to put test_module.py: In the same directory as module.py. In ../tests/test_module.py (at the same level as the code directory). In tests/test_module.py (one level under the code directory). I prefer #1 for its simplicity of finding the tests and importin...