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Cleanest way to toggle a boolean variable in Java?
...eanest because they show the intent in the method signature, are easier to read compared to the ! operator, and can be easily debugged.
Usage
boolean bTrue = true
boolean bFalse = false
boolean bNull = null
toggle(bTrue) // == false
toggle(bFalse) // == true
toggle(bNull) // == true
Of course, ...
Very slow compile times on Visual Studio 2005
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Isn't that what VS already does? Or you mean irrelevant changes like comments etc are discarded?
– nawfal
Dec 31 '13 at 6:50
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What is the point of “final class” in Java?
I am reading a book about Java and it says that you can declare the whole class as final . I cannot think of anything where I'd use this.
...
Check whether a path is valid in Python without creating a file at the path's target
...rom this pathname is valid or
# not, ignoring non-existent and non-readable path components.
for pathname_part in pathname.split(os.path.sep):
try:
os.lstat(root_dirname + pathname_part)
# If an OS-specific exception is raised, its error code
...
What is Python buffer type for?
...> s = 'Hello world'
>>> t = buffer(s, 6, 5)
>>> t
<read-only buffer for 0x10064a4b0, size 5, offset 6 at 0x100634ab0>
>>> print t
world
The buffer in this case is a sub-string, starting at position 6 with length 5, and it doesn't take extra storage space - it re...
Difference between Statement and PreparedStatement
...SQL string, e.g. Date, Time, Timestamp, BigDecimal, InputStream (Blob) and Reader (Clob). On most of those types you can't "just" do a toString() as you would do in a simple Statement. You could even refactor it all to using PreparedStatement#setObject() inside a loop as demonstrated in the utility ...
Case insensitive string compare in LINQ-to-SQL
I've read that it's unwise to use ToUpper and ToLower to perform case-insensitive string comparisons, but I see no alternative when it comes to LINQ-to-SQL. The ignoreCase and CompareOptions arguments of String.Compare are ignored by LINQ-to-SQL (if you're using a case-sensitive database, you get a ...
Symbolic links and synced folders in Vagrant
...ts is all that is required. As @jdunk pointed out, this config option is already set by default in Vagrant, as of this commit which happened almost a year before this answer was posted. That said, running vagrant up in a shell with admin rights did resolve my problem.
– Ajedi32...
What is the purpose of fork()?
...grams (like those written using MPI). Note this is different from using threads, which don't have their own address space and exist within a process.
Scripting languages use fork indirectly to start child processes. For example, every time you use a command like subprocess.Popen in Python, you for...
How to align input forms in HTML
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@MuhammadUmer Because tables will confuse screen readers and many assistive devices, whereas CSS tables separate presentation and content. Thus your form remains easily parsable by a screen reader or reading assistant, and yet displays nicely.
– Cléme...