The first half of this introduction to Java inheritance teaches you how to use the extends keyword to derive a child class from a parent class, invoke parent class constructors and methods, and ...
Consider the following hierarchy:<BR><BR>class person;<BR><BR>class student extends person;<BR>class teacher extends person;<BR><BR>In a language that doesnt' support multiple inheritance, what do you ...
Relational databases are really great for storing and retrieving data, but sometimes, they aren't quite up to the task. Joe Celko, whose SQL for Smarties books are among my favorites, dedicated an ...
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