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Variable length (Dynamic) Arrays in Java
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Yes: use ArrayList.
In Java, "normal" arrays are fixed-size. You have to give them a size and can't expand them or contract them. To change the size, you have to make a new array and copy the data you want - which is inefficient and a pain for you.
Fortu...
CSS Background Opacity [duplicate]
...eird and inconvenient if they didn't.
You can use a translucent PNG file for your background image, or use an RGBa (a for alpha) color for your background color.
Example, 50% faded black background:
<div style="background-color:rgba(0, 0, 0, 0.5);">
<div>
Text added.
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CSS @media print issues with background-color;
...uct that uses miles of css. I'm attempting to make a printable stylesheet for our app but I'm having issues with background-color in @media print .
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Read .mat files in Python
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An import is required, import scipy.io...
import scipy.io
mat = scipy.io.loadmat('file.mat')
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What is the use of “ref” for reference-type variables in C#?
...a value-type ( int , struct , etc.) as a parameter (without the ref keyword), a copy of that variable is passed to the method, but if I use the ref keyword a reference to that variable is passed, not a new one.
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Sorting arrays in NumPy by column
How can I sort an array in NumPy by the nth column?
13 Answers
13
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What’s the best way to check if a file exists in C++? (cross platform)
I have read the answers for What's the best way to check if a file exists in C? (cross platform) , but I'm wondering if there is a better way to do this using standard c++ libs? Preferably without trying to open the file at all.
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Access to the path is denied
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You need to find out from the application pool for the website what is the identity it is running under (by default this is Application Pool Identity) and grant that the correct permissions.
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python pandas: Remove duplicates by columns A, keeping the row with the highest value in column B
...ed and have been replaced by the subset and keep parameters. pandas.pydata.org/pandas-docs/version/0.17.1/generated/…
– Jezzamon
Dec 4 '15 at 4:22
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Getting indices of True values in a boolean list
...nly return the position of the first occurrence of True (this is just a portion of my code):
7 Answers
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