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How to resolve “must be an instance of string, string given” prior to PHP 7?
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9 Answers
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“On-line” (iterator) algorithms for estimating statistical median, mode, skewness, kurtosis?
...re an algorithm to estimate the median, mode, skewness, and/or kurtosis of set of values, but that does NOT require storing all the values in memory at once?
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What is the standard way to add N seconds to datetime.time in Python?
Given a datetime.time value in Python, is there a standard way to add an integer number of seconds to it, so that 11:34:59 + 3 = 11:35:02 , for example?
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Determine whether an array contains a value [duplicate]
I need to determine if a value exists in an array.
18 Answers
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Django: ImproperlyConfigured: The SECRET_KEY setting must not be empty
I am trying to set up multiple setting files (development, production, ..) that include some base settings. Cannot succeed though. When I try to run ./manage.py runserver I am getting the following error:
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How can I read a large text file line by line using Java?
I need to read a large text file of around 5-6 GB line by line using Java.
21 Answers
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How to debug apk signed for release?
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Be sure that android:debuggable="true" is set in the application tag of your manifest file, and then:
Plug your phone into your computer and enable USB debugging on the phone
Open eclipse and a workspace containing the code for your app
In Eclipse, go to Window->...
How to add new elements to an array?
I have the following code:
18 Answers
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How to query SOLR for empty fields?
...ery;
}
public bool NegativeQuery
{
get { return _negativeQuery; }
set { _negativeQuery = value; }
}
And in QueryParameterCollection.cs class, the ToString() override, looks if the Negative parameter is true
arQ[x] = (qp.NegativeQuery ? "-(" : "(") + qp.ToString() + ")" + (qp.Boost != 1 ?...
How to select multiple rows filled with constants?
Selecting constants without referring to a table is perfectly legal in an SQL statement:
15 Answers
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