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How to escape text for regular expression in Java
...java.lang.IndexOutOfBoundsException: No group 3
at java.util.regex.Matcher.start(Matcher.java:374)
at java.util.regex.Matcher.appendReplacement(Matcher.java:748)
at java.util.regex.Matcher.replaceAll(Matcher.java:823)
at java.lang.String.replaceAll(String.java:2201)
In this case, the user had ente...
How do I create an empty array/matrix in NumPy?
...d empty... I didn't found any relevant answer here on Stack Overflow, so I started doodling something.
# Initialize your variable as an empty list first
In [32]: x=[]
# and now cast it as a numpy ndarray
In [33]: x=np.array(x)
The result will be:
In [34]: x
Out[34]: array([], dtype=float64)
T...
Android: How to change CheckBox size?
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Starting with API Level 11 there is another approach exists:
<CheckBox
...
android:scaleX="0.70"
android:scaleY="0.70"
/>
share
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Open firewall port on CentOS 7
...made permanent then they need to be applied every time after receiving the start, restart or reload message from firewalld using D-BUS."
– dKen
Mar 3 '15 at 10:25
9
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PyLint “Unable to import” error - how to set PYTHONPATH?
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also, make sure none of your module directory names start with . (dot).
– Saw-mon and Natalie
Jun 17 '19 at 21:49
3
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Executing JavaScript without a browser?
...jrunscript.exe on Windows) and can be found in the bin folder of the JDK.
Starting from Java 1.8 there is bundled a new JavaScript implementation (Nashorn: https://blogs.oracle.com/nashorn/)
So in Java 1.8 the command is called jjs (jjs.exe on Windows)
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Are negative array indexes allowed in C?
...puting somearray-2 is undefined unless the result is in the range from the start of somearray to 1 past its end.
– RBerteig
Aug 13 '10 at 9:12
35
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Constructor of an abstract class in C#
...y purpose is to ensure that you have an object in a valid state before you start using it. It just happens to be that we usually call it through a new operator.
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improve this answer
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How to clear basic authentication details in chrome
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After I did this in Chrome 21, I found it started always asking for the password, instead of never. Apparently, it will hide the "username@" part in the URL, but still keep it. If you re-enter the URL after doing this (without the @ part), it will stop asking. Just a...
Git mergetool with Meld on Windows
...ib directory one directory up (that is the same directory as Meld.exe) and start, you would find things working,
– demongolem
Apr 11 '19 at 16:03
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