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Convert base class to derived class [duplicate]
Is it possible in C# to explicitly convert a base class object to one of it's derived classes? Currently thinking I have to create a constructor for my derived classes that accept a base class object as a parameter and copy over the property values. I don't really like this idea, so I'd like to avoi...
Hidden features of Ruby
Continuing the "Hidden features of ..." meme, let's share the lesser-known but useful features of Ruby programming language.
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What Computer Science concepts should I know? [closed]
What concepts in Computer Science do you think have made you a better programmer?
33 Answers
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What's the difference between a file descriptor and file pointer?
I want to know the difference between a file descriptor and file pointer.
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How to change column datatype in SQL database without losing data
I have SQL Server database and I just realized that I can change the type of one of the columns from int to bool .
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JPA: unidirectional many-to-one and cascading delete
Say I have a unidirectional @ManyToOne relationship like the following:
7 Answers
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Oracle JDBC ojdbc6 Jar as a Maven Dependency
I cannot seem to get Maven to bundle the ojdbc6.jar file into my project's war file. I have it working within the POM file when specifying a dependency directly for Hibernate tools. But it won't get bundled with the project's war file, and therefore my project won't run on Tomcat.
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How to declare a variable in MySQL?
How to declare a variable in mysql, so that my second query can use it?
7 Answers
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How to name factory like methods?
I guess that most factory-like methods start with create . But why are they called " create "? Why not " make ", " produce ", " build ", " generate " or something else? Is it only a matter of taste? A convention? Or is there a special meaning in "create"?
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Why isn't the size of an array parameter the same as within main?
Why isn't the size of an array sent as a parameter the same as within main?
13 Answers
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