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Setting an environment variable before a command in Bash is not working for the second command in a
In a given shell, normally I'd set a variable or variables and then run a command. Recently I learned about the concept of prepending a variable definition to a command:
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Why doesn't String switch statement support a null case?
I am just wondering why the Java 7 switch statement does not support a null case and instead throws NullPointerException ? See the commented line below (example taken from the Java Tutorials article on switch ):
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sys.argv[1] meaning in script
I'm currently teaching myself Python and was just wondering (In reference to my example below) in simplified terms what the sys.argv[1] represents. Is it simply asking for an input?
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Why does C++ compilation take so long?
Compiling a C++ file takes a very long time when compared to C# and Java. It takes significantly longer to compile a C++ file than it would to run a normal size Python script. I'm currently using VC++ but it's the same with any compiler. Why is this?
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Is there a way to remove the separator line from a UITableView?
I'm looking for a way to completely remove the separator line in a UITableView when in the plain mode. This is done automatically in grouped, but this also changes the dimensions of the table in a way that is hard to measure. I have set the seperator line color to colorClear. But this does not compl...
Eclipse - no Java (JRE) / (JDK) … no virtual machine
I am trying to get Eclipse v3.5 (Galileo) to re-run on my computer - I have run it before with no problems, but now I keep getting this error:
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Is 23,148,855,308,184,500 a magic number, or sheer chance?
News reports such as this one indicate that the above number may have arisen as a programming bug.
7 Answers
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How do I remove a submodule?
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Since git1.8.3 (April 22d, 2013):
There was no Porcelain way to say "I no longer am interested in this submodule", once you express your interest in a submodule with "submodule init".
"submodule deinit" is the way to do ...
Set Django IntegerField by choices=… name
...d to have some magic values associated with human readable names. Is there in Django a convenient way to set these fields by the human readable name instead of the value?
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Mvn install or Mvn package
I am new to Maven, I have a Java based web project with maven configured in my MyEclipse.
Now if I modified any java files then do I need to do Run as -> Mvn install or Mvn package ?
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