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How is an overloaded method chosen when a parameter is the literal null value?
...rst method could be passed on to the other one without a compile-time type error.
In your second case, both methods are still applicable, but neither String nor StringBuffer is more specific than the other, therefore neither method is more specific than the other, hence the compiler error.
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Extracting specific columns from a data frame
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That gives the error object of type 'closure' is not subsettable.
– Aren Cambre
Apr 10 '12 at 2:48
24
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Docker can't connect to docker daemon
After I update my Docker version to 0.8.0 , I get an error message while entering sudo docker version :
40 Answers
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How to configure slf4j-simple
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thanks I set "org.slf4j.simpleLogger.defaultLogLevel" to "error" in System.properties, however slf4j still log INFO level messages. Any idea? BTW, where should I put simplelogger.properties?
– Gelin Luo
Jan 27 '13 at 9:27
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Disable copy constructor
...nk the time spent following this pattern is greater than time saved by the errors it prevents. I simply forbid copy whenever not sure.
– Tomáš Zato - Reinstate Monica
Jan 14 '16 at 9:37
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Using python's eval() vs. ast.literal_eval()?
...aded operators) will fail. Eg. ast.literal_eval("1 & 1") will throw an error but eval("1 & 1") will not.
– Daniel van Flymen
May 22 '17 at 0:34
1
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How to un-submodule a Git submodule?
..._lte 2.8.4
then
# Previous to git 2.9.0 the parameter would yield an error
ALLOW_UNRELATED_HISTORIES=""
else
# From git 2.9.0 this parameter is required
ALLOW_UNRELATED_HISTORIES="--allow-unrelated-histories"
fi
git merge -s ours --no-commit ${ALLOW_UNRELATED_HISTORIES} "${s...
How to enable curl, installed Ubuntu LAMP stack?
... @Arsheep "didn't worked" is exceedingly unhelpful. Did it give you an error? Did your computer explode? Did your house burst into flames?
– Michael Mrozek
May 30 '10 at 18:41
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ImportError: no module named win32api
...installer. But when I import win32api in my Python script, it throws the error:
5 Answers
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How do C++ class members get initialized if I don't do it explicitly?
...e object's class does not have a default constructor, it will be a compile error if you do not explicitly initialize it.
For primitive types (pointers, ints, etc), they are not initialized -- they contain whatever arbitrary junk happened to be at that memory location previously.
For references (e....