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Develop Android app using C#

... DarrenDarren 61.1k2020 gold badges120120 silver badges132132 bronze badges ...
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How do I capture SIGINT in Python?

I'm working on a python script that starts several processes and database connections. Every now and then I want to kill the script with a Ctrl + C signal, and I'd like to do some cleanup. ...
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How to write a bash script that takes optional input arguments?

I want my script to be able to take an optional input, 8 Answers 8 ...
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Why doesn't Java allow to throw a checked exception from static initialization block?

Why doesn't Java allow to throw a checked exception from a static initialization block? What was the reason behind this design decision? ...
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Using LINQ to concatenate strings

...code use String.Join as shown in the other answer Use aggregate queries like this: string[] words = { "one", "two", "three" }; var res = words.Aggregate( "", // start with empty string to handle empty list case. (current, next) => current + ", " + next); Console.WriteLine(res); This out...
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Counting null and non-null values in a single query

... This works for Oracle and SQL Server (you might be able to get it to work on another RDBMS): select sum(case when a is null then 1 else 0 end) count_nulls , count(a) count_not_nulls from us; Or: select count(*) - count(a)...
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Why does the C++ STL not provide any “tree” containers?

...u could want to use a tree: You want to mirror the problem using a tree-like structure: For this we have boost graph library Or you want a container that has tree like access characteristics For this we have std::map (and std::multimap) std::set (and std::multiset) Basically the characteristic...
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Does using final for variables in Java improve garbage collection?

...oday my colleagues and me have a discussion about the usage of the final keyword in Java to improve the garbage collection. ...
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Compiling with g++ using multiple cores

Quick question: what is the compiler flag to allow g++ to spawn multiple instances of itself in order to compile large projects quicker (for example 4 source files at a time for a multi-core CPU)? ...
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How to open a web page from my application?

I want to make my WPF application open the default browser and go to a certain web page. How do I do that? 9 Answers ...