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What exactly does big Ө notation represent?
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It means that the algorithm is both big-O and big-Omega in the given function.
For example, if it is Ө(n), then there is some constant k, such that your function (run-time, whatever), is larger than n*k for sufficiently l...
MySQL error code: 1175 during UPDATE in MySQL Workbench
I'm trying to update the column visited to give it the value 1. I use MySQL workbench, and I'm writing the statement in the SQL editor from inside the workbench. I'm writing the following command:
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Why don't C++ compilers define operator== and operator!=?
...g fan of letting the compiler do as much work for you as possible. When writing a simple class the compiler can give you the following for 'free':
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Is there a macro recorder for Eclipse? [closed]
...ut something together over the last month or so that you may find useful. It has limitations since the Eclipse editor/commands weren't designed with macro support in mind, but I think it works reasonably well. I just posted Practical Macro at SourceForge a couple of days ago. It requires Eclipse 3...
Database: To delete or not to delete records
...vior? Do you prefer to delete a record from the database physically? Or is it better to just flag the record with a "deleted" flag or a boolean column to denote the record is active or inactive?
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Amazon S3 boto - how to create a folder?
...which many S3 access tools like S3Fox show like a directory structure, but it's actually just a single file in a bucket.
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Java Naming Convention with Acronyms [closed]
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Since it looks like the answer is that there is no single standard for this in Java, I'd like to note that the .NET Framework Design Guidelines do specify this.
Now before slamming me for being off topic, please remember that the...
ACE vs Boost vs POCO [closed]
I have been working with the Boost C++ Libraries for quite some time. I absolutely love the Boost Asio C++ library for network programming. However I was introduced to two other libraries: POCO and Adaptive Communication Environment (ACE) framework . I would like to know the good and bad of ...
Neither BindingResult nor plain target object for bean name available as request attribute [duplicat
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edited Aug 26 '14 at 19:45
Jeroen Vannevel
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Abstract class in Java
...ich cannot be instantiated. An abstract class is used by creating an inheriting subclass that can be instantiated. An abstract class does a few things for the inheriting subclass:
Define methods which can be used by the inheriting subclass.
Define abstract methods which the inheriting subclass m...