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How to get current time and date in Android
How can I get the current time and date in an Android app?
40 Answers
40
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Converting strings to floats in a DataFrame
How to covert a DataFrame column containing strings and NaN values to floats. And there is another column whose values are strings and floats; how to convert this entire column to floats.
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What is the use of printStackTrace() method in Java?
I am going through a socket program. In it, printStackTrace is called on the IOException object in the catch block.
What does printStackTrace() actually do?
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How to remove multiple indexes from a list at the same time? [duplicate]
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You need to do this in a loop, there is no built-in operation to remove a number of indexes at once.
Your example is actually a contiguous sequence of indexes, so you can do this:
del my_list[2:6]
which removes the slice starting at 2 and en...
How do function pointers in C work?
I had some experience lately with function pointers in C.
11 Answers
11
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Why are global variables evil? [closed]
I'm trying to find out why the use of global is considered to be bad practice in python (and in programming in general). Can somebody explain? Links with more info would also be appreciated.
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Using the “final” modifier whenever applicable in Java [closed]
In Java, there is a practice of declaring every variable (local or class), parameter final if they really are.
25 Answers
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Why is there huge performance hit in 2048x2048 versus 2047x2047 array multiplication?
I am making some matrix multiplication benchmarking, as previously mentioned in
Why is MATLAB so fast in matrix multiplication?
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Visual Studio: How do I show all classes inherited from a base class?
In Visual Studio, How do I show all classes inherited from a base class?
19 Answers
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Why can a function modify some arguments as perceived by the caller, but not others?
I'm trying to understand Python's approach to variable scope. In this example, why is f() able to alter the value of x , as perceived within main() , but not the value of n ?
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