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Polymorphism vs Overriding vs Overloading
...class is abstract because the goPee() method is not definable for Humans. It is only definable for the subclasses Male and Female. Also, Human is an abstract concept — You cannot create a human that is neither Male nor Female. It’s got to be one or the other.
So we defer the implementation b...
WordPress is giving me 404 page not found for all pages except the homepage
All of a sudden I go to my WordPress website and all the pages give me a 404 page not found page. I'm assuming the problem lies with the permalink structure, which I could swear I did not touch. The permalink setting is on "month and name."
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Big O, how do you calculate/approximate it?
Most people with a degree in CS will certainly know what Big O stands for .
It helps us to measure how well an algorithm scales.
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NAnt or MSBuild, which one to choose and when?
...'ve been able to determine:
NAnt:
Cross-platform (supports Linux/Mono). It may be handy for installing a web site to multiple targets (that is, Linux Apache and Windows IIS), for example.
95% similar in syntax to Ant (easy for current Ant users or Java builders to pick up)
Integration with NUnit...
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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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...
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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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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