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What is the difference between “px”, “dip”, “dp” and “sp”?
...sity of the screen. These units are relative to a 160
dpi screen, so one dp is one pixel on a 160 dpi screen. The ratio of
dp-to-pixel will change with the screen density, but not necessarily
in direct proportion. Note: The compiler accepts both "dip" and
"dp", though "dp" is...
Options, Settings, Properties, Configuration, Preferences — when and why?
...
Tricky, this, as there's no one single consistent style followed by all applications. As you say they are (broadly) synonyms.
In truth it doesn't really matter so long as your expected audience understands what you mean.
The biggest difference is betw...
What are .dex files in Android?
...
About the .dex File :
One of the most remarkable features of the Dalvik Virtual Machine (the workhorse under the Android system) is that it does not use Java bytecode. Instead, a homegrown format called DEX was introduced and not even the bytecode...
What is the pythonic way to detect the last element in a 'for' loop?
...hat should be called only between elements, being suppressed in the last one.
24 Answers
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throws Exception in finally blocks
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I typically use one of the closeQuietly methods in org.apache.commons.io.IOUtils:
public static void closeQuietly(OutputStream output) {
try {
if (output != null) {
output.close();
}
} catch (IOException ...
Passing multiple variables in @RequestBody to a Spring MVC controller using Ajax
...d parameter is expected to hold the entire body of the request and bind to one object, so you essentially will have to go with your options.
If you absolutely want your approach, there is a custom implementation that you can do though:
Say this is your json:
{
"str1": "test one",
"str2": ...
What is the difference between concurrency and parallelism?
...th these words are almost the same:
Concurrent: existing, happening, or done at the same time(dictionary.com)
Parallel: very similar and often happening at the same time(merriam webster).
Yet the way they are used in computer science and programming are quite different. Here is my interpretation...
Why should I not include cpp files and instead use a header?
...roject together, there is fundamentally no difference between what you've done, and just making one huge source file without any separation at all.
"Oh, that's no big deal. If it runs, it's fine," I hear you cry. And in a sense, you'd be correct. But right now you're dealing with a tiny tiny lit...
Undo git reset --hard with uncommitted files in the staging area
... recover my work. I stupidly did git reset --hard , but before that I've done only get add . and didn't do git commit . Please help! Here is my log:
...
When should one use RxJava Observable and when simple Callback on Android?
...y you not only want to retrieve the userPhoto, but you have an Instagram-clone, and you want to retrieve 2 JSONs:
1. getUserDetails()
2. getUserPhotos()
You want to load these two JSONs in parallel, and when both are loaded, the page should be displayed.
The callback variant will become a bit more ...