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Non-static variable cannot be referenced from a static context
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You must understand the difference between a class and an instance of that class. If you see a car on the street, you know immediately that it's a car even if you can't see which model or type. This is because you compare what you see with t...
C++ Tuple vs Struct
Is there is any difference between using a std::tuple and a data-only struct ?
12 Answers
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What tools are there for functional programming in C?
...ional programming in C ( not C++). Obviously, C is a procedural language and doesn't really support functional programming natively.
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Parse date string and change format
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convert string to datetime object
from datetime import datetime
s = "2016-03-26T09:25:55.000Z"
f = "%Y-%m-%dT%H:%M:%S.%fZ"
out = datetime.strptime(s, f)
print(out)
output:
2016-03-26 09:25:55
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'0000-00-00 00:00:00' can not be represented as java.sql.Timestamp error
...ration:
jdbc:mysql://yourserver:3306/yourdatabase?zeroDateTimeBehavior=convertToNull
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ArrayIndexOutOfBoundsException with custom Android Adapter for multiple views in ListView
...t when I try to run the Activity that uses the ListView I receive an error and the app stops. The application is targeted for the Android 1.6 platform.
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How to find time complexity of an algorithm
...chine instructions it will execute as a function of the size of its input, and then simplify the expression to the largest (when N is very large) term and can include any simplifying constant factor.
For example, lets see how we simplify 2N + 2 machine instructions to describe this as just O(N).
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is vs typeof
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This should answer that question, and then some.
The second line, if (obj.GetType() == typeof(ClassA)) {}, is faster, for those that don't want to read the article.
(Be aware that they don't do the same thing)
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How to implement the Java comparable interface?
...y abstract class. I have the following example code that I am using to try and get my head around it:
10 Answers
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How to display multiple notifications in android
I am receiving only one notification and if there comes another notification, it replaces the previous one and here is my code
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