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Odd behavior when Java converts int to byte?
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132 in digits (base 10) is 1000_0100 in bits (base 2) and Java stores int in 32 bits:
0000_0000_0000_0000_0000_0000_1000_0100
Algorithm for int-to-byte is left-truncate; Algorithm for System.out.println is two's-complement (Two's-compleme...
Convert List to List
While we can inherit from base class/interface, why can't we declare a List<>
using same class/interface?
11 Ans...
Safely override C++ virtual functions
I have a base class with a virtual function and I want to override that function in a derived class. Is there some way to make the compiler check if the function I declared in the derived class actually overrides a function in the base class? I would like to add some macro or something that ensures ...
Can “using” with more than one resource cause a resource leak?
...he same, lose attention and otherwise be at a greater loss. Just an advice based on personal experience.
– user1306322
Jan 15 '14 at 3:55
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Random data in Unit Tests?
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I will say though that if you use a random variable then fork your test based on that variable, then that is a smell.
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ASP.NET MVC: What is the purpose of @section? [closed]
...rms).
You might find Scott Gu's write up on this very interesting.
Edit: Based on additional question clarification
The @RenderSection syntax goes into the Shared View, such as:
<div id="sidebar">
@RenderSection("Sidebar", required: false)
</div>
This would then be placed in yo...
How to execute a raw update sql with dynamic binding in rails
...ing connection and using it's methods, e.g. for MySQL:
st = ActiveRecord::Base.connection.raw_connection.prepare("update table set f1=? where f2=? and f3=?")
st.execute(f1, f2, f3)
st.close
I'm not sure if there are other ramifications to doing this (connections left open, etc). I would trace the...
How should I structure a Python package that contains Cython code
...ke installation more stable/robust, because user may get different results based on which version of Cython he has installed - he may not even be aware that he has it installed and that it is affecting the building of package.
– Martinsos
Feb 17 '17 at 9:22
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What is the best way to give a C# auto-property an initial value?
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@CallMeLaNN call :base() in your concrete class to construct it's base (abstract)
– Guillaume Massé
Sep 8 '11 at 21:00
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What is the most efficient/elegant way to parse a flat table into a tree?
... MySQL 8.0 supports recursive queries, we can say that all popular SQL databases support recursive queries in standard syntax.
WITH RECURSIVE MyTree AS (
SELECT * FROM MyTable WHERE ParentId IS NULL
UNION ALL
SELECT m.* FROM MyTABLE AS m JOIN MyTree AS t ON m.ParentId = t.Id
)
SELECT * ...