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Get keys from HashMap in Java
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This is doable, at least in theory, if you know the index:
System.out.println(team1.keySet().toArray()[0]);
keySet() returns a set, so you convert the set to an array.
The problem, of course, is that a set doesn't promise to keep your order. If you only have one item in...
Android Studio suddenly cannot resolve symbols
...he background but when Android Studio started up again the status bar said Indexing... for a minute or so which apparently did wonders.
For reference I'm using Android Studio 0.5.4.
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Difference between __str__ and __repr__?
...above, not %s. You always want to use repr() [or %r formatting character, equivalently] inside __repr__ implementation, or you’re defeating the goal of repr. You want to be able to differentiate MyClass(3) and MyClass("3").
The goal of __str__ is to be readable
Specifically, it is not intended t...
Using CSS in Laravel views?
...writeCond %{REQUEST_FILENAME} !-f". That line should go above the one with index.php in it, and will prevent requests to paths that exist in the filesystem from being handled by Laravel's routing system. If the 404 received is not generated by Laravel, you need to add "AllowOverride All" to your Apa...
Find the nth occurrence of substring in a string
...,s)]
[0, 2, 11]
>>> [m.start() for m in re.finditer(r"ab",s)][2] #index 2 is third occurrence
11
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How to Animate Addition or Removal of Android ListView Rows
...e_out_right
);
anim.setDuration(500);
listView.getChildAt(index).startAnimation(anim );
new Handler().postDelayed(new Runnable() {
public void run() {
FavouritesManager.getInstance().remove(
FavouritesManager.getInstance().getTripManagerAtIndex(index)
...
Sum a list of numbers in Python
... [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
sm = sum(a[0:len(a)]) # Sum of 'a' from 0 index to 9 index. sum(a) == sum(a[0:len(a)]
print(sm) # Python 3
print sm # Python 2
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Getting Django admin url for an object
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I had a similar issue where I would try to call reverse('admin_index') and was constantly getting django.core.urlresolvers.NoReverseMatch errors.
Turns out I had the old format admin urls in my urls.py file.
I had this in my urlpatterns:
(r'^admin/(.*)', admin.site.root),
which gets...
Git format-patch to be svn compatible?
...-e "s/^--- .*/& (revision $REV)/" \
-e "s/^diff --git [^[:space:]]*/Index:/" \
-e "s/^index.*/===================================================================/"
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htaccess Access-Control-Allow-Origin
...riteCond %{REQUEST_FILENAME} -d
RewriteRule ^.*$ - [NC,L]
RewriteRule ^.*$ index.php [NC,L]
to
RewriteEngine On
<IfModule mod_headers.c>
Header set Access-Control-Allow-Origin "*"
</IfModule>
RewriteCond %{REQUEST_FILENAME} -s [OR]
RewriteCond %{REQUEST_FILENAME} -l [OR]
Rewrit...