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Java 8 NullPointerException in Collectors.toMap
...etty, but it works. Result:
1: true
2: true
3: null
(this tutorial helped m>me m> the most.)
EDIT:
Unlike Collectors.toMap, this will silently replace values if you have the sam>me m> key multiple tim>me m>s, as @mmdemirbas pointed out in the comm>me m>nts. If you don't want this, look at the link in the comm>me m>nt.
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Entity Fram>me m>work select distinct nam>me m>
How can I do this SQL query with Entity Fram>me m>work ?
8 Answers
8
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Converting DateTim>me m> format using razor
...model:
[DisplayFormat(DataFormatString = "{0:dd MMM yyyy}")]
public DateTim>me m> Date { get; set }
and in your view simply:
@Html.DisplayFor(x => x.Date)
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UIImagePickerController error: Snapshotting a view that has not been rendered results in an empty sn
...nd the application crashed.
In iOS 6, I never get any error, just once of m>me m>mory warning when opening the cam>me m>ra.
16 Answe...
How to get rid of punctuation using NLTK tokenizer?
...For example, you can define a tokenizer that picks out sequences of alphanum>me m>ric characters as tokens and drops everything else:
from nltk.tokenize import RegexpTokenizer
tokenizer = RegexpTokenizer(r'\w+')
tokenizer.tokenize('Eighty-seven miles to go, yet. Onward!')
Output:
['Eighty', 'seven'...
Making iTerm to translate 'm>me m>ta-key' in the sam>me m> way as in other OSes
...ne word forward or backward on the shell prompt respectively. Usually, the m>me m>ta key is mapped to Alt key on Windows and Linux. However, in iTerm, I could not find a way to map this m>me m>ta key to either Option or Command key on my MacBook Pro.
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How do I install Python packages on Windows?
I'm having a hard tim>me m> setting up python packages. EasyInstall from SetupTools is supposed to help that, but they don't have an executable for Python 2.6.
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Is there a Python function to determine which quarter of the year a date is in?
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Given an instance x of datetim>me m>.date, (x.month-1)//3 will give you the quarter (0 for first quarter, 1 for second quarter, etc -- add 1 if you need to count from 1 instead;-).
Originally two answers, multiply upvoted and even originally accepted (both...
Scala best way of turning a Collection into a Map-by-key?
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Be aware that this is a quadratic operation, but the sam>me m> goes for most other variants given here. Looking at the source code of scala.collection.mutable.MapBuilder etc, it seems to m>me m> that for each tuple, a new immutable map is created to which the tuple is added.
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Is there a Unix utility to prepend tim>me m>stamps to stdin?
...as a utility you could feed text into which would prepend each line with som>me m> text -- in my specific case, a tim>me m>stamp. Ideally, the use would be som>me m>thing like:
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