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What is the difference between Swing and AWT?
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AWT is a Java interface to native system GUI code present in your OS. It will not work the same on every system, although it tries.
Swing is a more-or-less pure-Java GUI. It uses AWT to create an operating system window and then paints pictures of ...
Avoiding instanceof in Java
... when polymorphism causes more trouble than it solves.
The issue is that to use polymorphism you have to make the logic of "handle" part of each 'switching' class - i.e. Integer etc. in this case. Clearly this is not practical. Sometimes it isn't even logically the right place to put the code. He ...
SQL injection that gets around mysql_real_escape_string()
...h the usual example is DROP TABLE, in practice the attacker is more likely to SELECT passwd FROM users. In the latter case, the second query is usually executed by use of a UNION clause.
– Jacco
May 21 '12 at 9:47
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Convert a number range to another range, maintaining ratio
I'm trying to convert one range of numbers to another, maintaining ratio. Maths is not my strong point.
18 Answers
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Python List vs. Array - when to use?
...an hold completely heterogeneous, arbitrary data, and they can be appended to very efficiently, in amortized constant time. If you need to shrink and grow your list time-efficiently and without hassle, they are the way to go. But they use a lot more space than C arrays, in part because each item i...
How to change users in TortoiseSVN
I was setting up another user to use our SVN repository. He didn't have a username/password, so I logged in with my credentials. We now have a username/password for him.
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Split a string by another string in C#
I've been using the Split() method to split strings, but this only appears to work if you are splitting a string by a character. Is there a way to split a string , with another string being the split by parameter?
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Fatal Error: Allowed Memory Size of 134217728 Bytes Exhausted (CodeIgniter + XML-RPC)
...f client point of sale (POS) systems that periodically send new sales data to one centralized database, which stores the data into one big database for report generation.
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Retaining file permissions with Git
I want to version control my web server as described in Version control for my web server , by creating a git repo out of my /var/www directory . My hope was that I would then be able to push web content from our dev server to github, pull it to our production server, and spend the rest of the d...
Using build types in Gradle to run same app that uses ContentProvider on one device
I have set up Gradle to add package name suffix to my debug app so I could have release version that I'm using and debug version on one phone. I was referencing this: http://tools.android.com/tech-docs/new-build-system/user-guide#TOC-Build-Types
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