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Evaluating a mathematical expression in a string
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How do I use the conditional operator (? :) in Ruby?
How is the conditional operator ( ? : ) used in Ruby?
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Combine multiple Collections into a single logical Collection?
Assume, I have a constant number of collections (e.g. 3 ArrayLists) as members of a class. Now, I want to expose all the elements to other classes so they can simply iterate over all elements (ideally, read only).
I'm using guava collections and I wonder how I could use guava iterables/iterators to ...
How do I diff the same file between two different commits on the same branch?
In Git, how could I compare the same file between two different commits (not contiguous) on the same branch (master for example)?
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unbound method f() must be called with fibo_ instance as first argument (got classobj instance inste
In Python, I'm trying to run a method in a class and I get an error:
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Make copy of an array
I have an array a which is constantly being updated. Let's say a = [1,2,3,4,5] . I need to make an exact duplicate copy of a and call it b . If a were to change to [6,7,8,9,10] , b should still be [1,2,3,4,5] . What is the best way to do this? I tried a for loop like:
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How to resume Fragment from BackStack if exists
I am learning how to use fragments. I have three instances of Fragment that are initialized at the top of the class. I am adding the fragment to an activity like this:
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What is the difference between cout, cerr, clog of iostream header in c++? When to use which one?
I tried researching the difference between cout , cerr and clog on the internet but couldn't find a perfect answer. I still am not clear on when to use which. Can anyone explain to me, through simple programs and illustrate a perfect situation on when to use which one?
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Why remove unused using directives in C#?
I'm wondering if there are any reasons (apart from tidying up source code) why developers use the "Remove Unused Usings " feature in Visual Studio 2008?
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