I thought this was interesting… In Java, a block scoped variable may conflict with a local variable declared later in method scope, but not previously (as shown below):

class A{
  public static void main(String args[]){
    {int k = 5;}
    int k = 12; //this is OK
    {int k = 22;}//this is not....
  }
}

This is not the same as C++ where this compiles happily:

int main(){
  {int i;}
  int i;
  {int i;}
  return 0;
}

Usually C++ has the more obscure behavior….

I just noticed that java enums allow protected member variables and methods. Why is this interesting? Can you think of any code that might actually make use of a protected member in an enum (as opposed to private)? Example after the jump (warning, not practical…).
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Providing a robust, maintainable, and interactive interface to your C/C++ application can be a challenge, but I’ve found that a combination of SWIG, Java, and JRuby (or Jython if you prefer) makes for a very powerful combination.
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The TUN/TAP interface under Linux provides user space access to Transport (Ethernet) or Network Layer (IP) traffic by allowing a developer to create a “virtual” interface that can be openend in user space as a file descriptor.
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In a surprisingly well-kept secret, HgWeb and HgWebDir support RSS. Details below.
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Why is XML better than custom internal formats? Isn’t a non-standard set of XML tags basically equivalent to a custom format when using data internally to an application? Absolutely not, and here is why.
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DVSL is a fairly small, little known, product associated with the Velocity project over at Apache which takes the best part of XSLT: XPATH, and replaces the verbose and frustrating scripting of XSLT with a java-based template language instead.
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What are the differences and when should I use one or the other?
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This article expands the example from the previous two, here and here, to add more specific error information.

As always the full code from the example is available here here.

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In this article I demonstrate how to write your own check macros for the boost test library (not guaranteed to work in the future)

Full source code for this example can be downloaded here.
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