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HTML 5: Is it , , or ?
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Simply <br> is sufficient.
The other forms are there for compatibility with XHTML; to make it possible to write the same code as XHTML, and have it also work as HTML. Some systems that generate HTML may be based on XML generators, and thus do not have the ability...
What is the best way to solve an Objective-C namespace collision?
...pace. Common practice is to prefix classes with initials, e.g. if you are working at IBM, you could prefix them with "IBM"; if you work for Microsoft, you could use "MS"; and so on. Sometimes the initials refer to the project, e.g. Adium prefixes classes with "AI" (as there is no company behind it o...
How dangerous is it to access an array out of bounds?
...ppen that I read from outside the array (I now understand I then access memory used by some other parts of my program or even beyond that) or I am trying to set a value to an index outside of the array. The program sometimes crashes, but sometimes just runs, only giving unexpected results.
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What is the difference between “instantiated” and “initialized”?
I've been hearing these two words used in Microsoft tutorials for VB.NET. What is the difference between these two words when used in reference to variables?
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How to tell if node.js is installed or not
...ions. What does one really need to do? I wanted to see if it was actually working. So I executed a script called hello.js. It went as such:
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What are bitwise operators?
I'm someone who writes code just for fun and haven't really delved into it in either an academic or professional setting, so stuff like these bitwise operators really escapes me.
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Regular Expression: Any character that is NOT a letter or number
... the regular expression that will match any character that is not a letter or a number. So characters such as (,,@,£,() etc ...
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How to do a logical OR operation in shell scripting
I am trying to do a simple condition check, but it doesn't seem to work.
8 Answers
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ERROR:'keytool' is not recognized as an internal or external command, operable program or batch file
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Check that the directory the keytool executable is in is on your %PATH% environment variable.
For example, on my Windows 7 machine, it is in
C:\Program Files (x86)\Java\jre6\bin, and my %PATH% variable looks like C:\Program Files (x86)\Common F...
Difference between framework vs Library vs IDE vs API vs SDK vs Toolkits? [closed]
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An IDE is an integrated development environment - a suped-up text editor with additional support for developing (such as forms designers, resource editors, etc), compiling and debugging applications. e.g Eclipse, Visual Studio.
A Library is a chunk of code that you can call from your own code,...