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Where is the warnings screen option in Android Studio?
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If, on the toolbar, you click Analyze -> Inspect Code; then in the window that pops up select how much of your project you want to inspect (I usually do Whole Project, but you might want to select a specific module), then ...
Compile error: “g++: error trying to exec 'cc1plus': execvp: No such file or directory”
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This problem can happen if different versions of g++ and gcc are installed.
g++ --version
gcc --version
If these don't give the result, you probably have multiple versions of gcc installed. You can check by using:
dpkg -l | grep gcc |...
How to get a list of properties with a given attribute?
...ustomAttributes; however, the attribute is instantiated, which isn't free. If you don't need to check specific values of the attribute, IsDefined is cheaper. And in 4.5, there are ways to check the instantiation data without actually creating any attribute instances (although this is intended for ve...
How to access pandas groupby dataframe by key
...ata-structures already available in the groupby object.
You can select different columns using the groupby slicing:
In [22]: gb[["A", "B"]].get_group("foo")
Out[22]:
A B
0 foo 1.624345
2 foo -0.528172
4 foo 0.865408
In [23]: gb["C"].get_group("foo")
Out[23]:
0 5
2 11
4 ...
How to immediately see compile errors in project tree of IntelliJ Idea?
I'm wondering if it is possible to configure IntelliJ Idea to immediately show compile errors on the class files in the project tree. Currently I need to manually trigger the recompilation to see error marks on my classes if the class cannot be compiled.
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Disabling highlighting of current line in the Visual Studio editor
...t least on my machine (VS2013), turning off the annoying highlight bar significantly sped up the scrolling speed - or at least changed from snail-speed to only slow. Changing the color of the bar probably wouldn't do that.
– Wade Hatler
Jun 18 '14 at 5:53
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How to get the index of a maximum element in a numpy array along one axis
...ss all axis, not along a given axis as the OP asks: it is wrong. Moreover, if there is more than one maximum, it retrieves the indices of only the first maximum: this should be pointed out. Try with a = np.array([[1,4,3],[4,3,1]]) to see that it returns i,j==0,1, and neglects the solution at i,j==1,...
Wrapping null-returning method in Java with Option in Scala?
...Some instead of Option in optionString - Changed in original answer. 2. Verified only in Scala 2.12.5
– DekelM
Aug 29 '18 at 6:14
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Spring Boot Rest Controller how to return different HTTP status codes?
...t for a simple REST API and would like to return a correct HTTP statuscode if something fails.
6 Answers
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Command to get nth line of STDOUT
... @LeoUfimtsev: the p is the sed statement that prints the lines identified by the range of lines that precedes it. Thus 2,4p means print lines 2, 3, 4.
– Jonathan Leffler
Dec 6 '17 at 23:03
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