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Python syntax for “if a or b or c but not all of them”
...ave a python script that can receive either zero or three command line argum>me m>nts. (Either it runs on default behavior or needs all three values specified.)
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Import CSV file to strongly typed data structure in .Net [closed]
...s RFC 4180 for CSV files. Don't be put off by the Microsoft.VisualBasic nam>me m>space; it's a standard component in the .NET Fram>me m>work, just add a reference to the global Microsoft.VisualBasic assembly.
If you're compiling for Windows (as opposed to Mono) and don't anticipate having to parse "broken" ...
How to find index of list item in Swift?
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As swift is in som>me m> regards more functional than object-oriented (and Arrays are structs, not objects), use the function "find" to operate on the array, which returns an optional value, so be prepared to handle a nil value:
let arr:Array = [...
“Java DateFormat is not threadsafe” what does this leads to?
...lts){
System.out.println(result.get());
}
}
Run this a few tim>me m>s and you will see:
Exceptions:
Here are a few examples:
1.
Caused by: java.lang.NumberFormatException: For input string: ""
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
at ja...
What is an idempotent operation?
...ne that has no additional effect if it is called more than once with the sam>me m> input param>me m>ters. For example, removing an item from a set can be considered an idempotent operation on the set.
In mathematics, an idempotent operation is one where f(f(x)) = f(x). For example, the abs() function is idem...
Is there a way to simulate the C++ 'friend' concept in Java?
...o be able to write a Java class in one package which can access non-public m>me m>thods of a class in another package without having to make it a subclass of the other class. Is this possible?
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Unit testing private m>me m>thods in C#
Visual Studio allows unit testing of private m>me m>thods via an automatically generated accessor class. I have written a test of a private m>me m>thod that compiles successfully, but it fails at runtim>me m>. A fairly minimal version of the code and the test is:
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Remove Server Response Header IIS7
Is there any way to remove "Server" response header from IIS7? There are som>me m> articles showing that using HttpModules we can achieve the sam>me m> thing. This will be helpful if we don't have admin right to server. Also I don't want to write ISAPI filter.
...
How do you reverse a string in place in JavaScript?
...in-place) in JavaScript when it is passed to a function with a return statem>me m>nt, without using built-in functions ( .reverse() , .charAt() etc.)?
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Difference between FetchType LAZY and EAGER in Java Persistence API?
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Som>me m>tim>me m>s you have two entities and there's a relationship between them. For example, you might have an entity called University and another entity called Student and a University might have many Students:
The University entit...