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How to get index using LINQ? [duplicate]
Given a datasource like that:
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Why would an Enum implement an Interface?
I just found out that Java allows enums to implement an interface. What would be a good use case for that?
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arrayfun can be significantly slower than an explicit loop in matlab. Why?
Consider the following simple speed test for arrayfun :
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How can you iterate over the elements of an std::tuple?
How can I iterate over a tuple (using C++11)? I tried the following:
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Variable number of arguments in C++?
How can I write a function that accepts a variable number of arguments? Is this possible, how?
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In what order do static/instance initializer blocks in Java run?
Say a project contains several classes, each of which has a static initializer block. In what order do those blocks run? I know that within a class, such blocks are run in the order they appear in the code. I've read that it's the same across classes, but some sample code I wrote disagrees with t...
How do I select a random value from an enumeration?
Given an arbitrary enumeration in C#, how do I select a random value?
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Getting indices of True values in a boolean list
I have a piece of my code where I'm supposed to create a switchboard. I want to return a list of all the switches that are on. Here "on" will equal True and "off" equal False . So now I just want to return a list of all the True values and their position. This is all I have but it only return t...
Why are you not able to declare a class as static in Java?
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Only nested classes can be static. By doing so you can use the nested class without having an instance of the outer class.
class OuterClass{
public static class StaticNestedClass{
}
public class InnerClass{
}
public InnerClass getAnInnerClass()...
Why would I make() or new()?
The introduction documents dedicate many paragraphs to explaining the difference between new() and make() , but in practice, you can create objects within local scope and return them.
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