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Why am I not getting a java.util.ConcurrentModificationException in this example?
... remove = Integer.valueOf(3);
A solution:
Traverse the array in reverse order if you are going to remove a list element. Simply by going backwards through the list you avoid visiting an item that has been removed, which removes the exception.
//To remove items from the list, start from the end ...
Meaning of “[: too many arguments” error from if [] (square brackets)
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Generic List - moving an item within the list
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You should remove before inserting ... your order may cause the list to do an allocation.
– Jim Balter
Nov 6 '18 at 15:47
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Transpose a data frame
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# transpose
t_mtcars <- transpose(mtcars)
# get row and colnames in order
colnames(t_mtcars) <- rownames(mtcars)
rownames(t_mtcars) <- colnames(mtcars)
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Assert a function/method was not called using Mock
...ome function was not called. Mock docs talk about methods like mock.assert_called_with and mock.assert_called_once_with , but I didn't find anything like mock.assert_not_called or something related to verify mock was NOT called .
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How to loop over files in directory and change path and add suffix to filename
...; do
./MyProgram.exe "$filename" "Logs/$(basename "$filename" .txt)_Log$i.txt"
done
done
Notes:
/Data/*.txt expands to the paths of the text files in /Data (including the /Data/ part)
$( ... ) runs a shell command and inserts its output at that point in the command line
basename some...
How can I wrap or break long text/word in a fixed width span?
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It needs to have a width in order to know where to break
– DFSFOT
Aug 28 '18 at 23:24
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Default parameter for CancellationToken
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Here are several solutions, in descending order of general goodness:
1. Using default(CancellationToken) as default value:
Task DoAsync(CancellationToken ct = default(CancellationToken)) { … }
Semantically, CancellationToken.None would be the ideal candidate fo...
HashMap with multiple values under the same key
...t types associated with a key. You have to take care by maintaining proper order of inserting and retrieving from Object[].
Example:
Consider, we want to store Student information. Key is id, while we would like to store name, address and email associated to the student.
//To make entry int...
Google Maps V3: How to disable “street view”?
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disableDefaultUI: true is not necessary in order to remove only the street view button.
– Eido95
Jun 4 '18 at 13:10
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