I use quite frequently (and it makes my life simpler): smart pointers (shared_ptr, scoped_ptr, weak_ptr, interprocess unique_ptr): scoped_ptr for basic RAII (without shared ownership and ownership transfer), at no cost. shared_ptr for more complex operations – when shared ownership is needed. However there is some cost. unique_ptr – there is active work at boost on … Read more
If I’m not mistaken the desktop is just a ListView, and you’ll have to send the LVM_SETITEMPOSITION message to the handle of the desktop. I googled a bit for some c# code and couldn’t find a example, but I did found the following article. Torry: …get/set the positions of desktop icons?. It’s delphi code, but … Read more
Different behaviors can be obtained by using different service objects. Static methods in a utility class can’t be swapped out. This is extremely useful for testing, changing implementations, and other purposes. For example, you mention a CryptoUtil with an encrypt method. It would extremely useful to have different objects that could support different encryption strategies, … Read more
Hercules is fantastic. It’s a fully functioning tcp/udp client/server, amazing for debugging sockets. More details on the web site.
For a completely stateless utility class in Java, I suggest the class be declared public and final, and have a private constructor to prevent instantiation. The final keyword prevents sub-classing and can improve efficiency at runtime. The class should contain all static methods and should not be declared abstract (as that would imply the class … Read more
It is well known that static methods with immutable objects as parameters are thread safe and mutable objects are not. I would contest this. Arguments passed to a method are stored on a stack, which is a per-thread idiom. If your parameter is a mutable object such as a Date then you need to ensure … Read more
Private constructor and static methods on a class marked as final.
Windows uses carriage return + line feed for newline: \r\n Unix only uses Line feed for newline: \n In conclusion, simply replace every occurence of \n by \r\n. Both unix2dos and dos2unix are not by default available on Mac OSX. Fortunately, you can simply use Perl or sed to do the job: sed -e ‘s/$/\r/’ … Read more
Looks like this is new as of Python 3.4 – pathlib. from pathlib import Path Path(‘path/to/file.txt’).touch() This will create a file.txt at the path. — Path.touch(mode=0o777, exist_ok=True) Create a file at this given path. If mode is given, it is combined with the process’ umask value to determine the file mode and access flags. If … Read more