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How to check if activity is in foreground or in visible background?
...k that the next activity has started because a system dialogue box pops-up and I only want to finish() ; once the user has selected an option from the dialogue box?
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What is a Context Free Grammar?
...to me what a context free grammar is? After looking at the Wikipedia entry and then the Wikipedia entry on formal grammar, I am left utterly and totally befuddled. Would someone be so kind as to explain what these things are?
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Best implementation for hashCode method for a collection
...ins there why the approach is good.
A short version
Create a int result and assign a non-zero value.
For every field f tested in the equals() method, calculate a hash code c by:
If the field f is a boolean:
calculate (f ? 0 : 1);
If the field f is a byte, char, short or int: calculate (int)f;
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Why must jUnit's fixtureSetup be static?
I marked a method with jUnit's @BeforeClass annotation, and got this exception saying it must be static. What's the rationale? This forces all my init to be on static fields, for no good reason as far as I see.
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Passing a string with spaces as a function argument in bash
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you should put quotes and also, your function declaration is wrong.
myFunction()
{
echo "$1"
echo "$2"
echo "$3"
}
And like the others, it works for me as well. Tell us what version of shell you are using.
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List directory tree structure in python?
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Similar to answers above, but for python3, arguably readable and arguably extensible:
from pathlib import Path
class DisplayablePath(object):
display_filename_prefix_middle = '├──'
display_filename_prefix_last = '└──'
display_parent_prefix_middle = ' '
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Google Maps v2 - set both my location and zoom in
...s, does anyone know how to set google maps up, to open up both my location and in a zoomed-in view?
11 Answers
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pull/push from multiple remote locations
The short: is there a way to have a git repo push to and pull from a list of remote repos (rather than a single "origin")?
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What is an index in SQL?
What is an index in SQL? Can you explain or reference to understand clearly?
11 Answers
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Creating rounded corners using CSS [closed]
...etail a whole bunch of different approaches. Find one that suits your site and coding style, and go with it.
CSS Design: Creating Custom Corners
& Borders
CSS Rounded Corners 'Roundup'
25 Rounded Corners Techniques with CSS
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