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How do I reverse an int array in Java?
... an int array, you swap items up until you reach the midpoint, like this:
for(int i = 0; i < validData.length / 2; i++)
{
int temp = validData[i];
validData[i] = validData[validData.length - i - 1];
validData[validData.length - i - 1] = temp;
}
The way you are doing it, you swap ea...
Haskell: Converting Int to String
...ennyTM A LOT of people will find that link useful! A link alone is +1, but for showing how to use it... That's +10 Thanks :)
– CoR
Jun 8 '12 at 22:23
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Pure virtual function with implementation
My basic understanding is that there is no implementation for a pure virtual function, however, I was told there might be implementation for pure virtual function.
...
How to find index of list item in Swift?
...(arr, "c")! // 2
find(arr, "d") // nil
Update for Swift 2.0:
The old find function is not supported any more with Swift 2.0!
With Swift 2.0, Array gains the ability to find the index of an element using a function defined in an extension of CollectionType (which Array ...
How do I exit a WPF application programmatically?
In the few years I've been using C# (Windows Forms), I've never used WPF. But, now I love WPF, but I don't know how I am supposed to exit my application when the user clicks on the Exit menu item from the File menu.
...
Assign null to a SqlParameter
...rs[0] = planIndexParameter;
Here is a quote from the MSDN documentation for the ?: operator that explains the problem
Either the type of first_expression and second_expression must be the same, or an implicit conversion must exist from one type to the other.
...
How to sort an array of integers correctly
...simplify this with arrow functions:
numArray.sort((a, b) => a - b); // For ascending sort
numArray.sort((a, b) => b - a); // For descending sort
Documentation:
Mozilla Array.prototype.sort() recommends this compare function for arrays that don't contain Infinity or NaN. (Because Inf - I...
When should I use uuid.uuid1() vs. uuid.uuid4() in python?
...creating more than 214 uuid1 in less than 100ns, but this is not a problem for most use cases.
uuid4() generates, as you said, a random UUID. The chance of a collision is really, really, really small. Small enough, that you shouldn't worry about it. The problem is, that a bad random-number generato...
Advantage of switch over if-else statement
What's the best practice for using a switch statement vs using an if statement for 30 unsigned enumerations where about 10 have an expected action (that presently is the same action). Performance and space need to be considered but are not critical. I've abstracted the snippet so don't hate m...
Hidden features of Ruby
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A more explicit (and thus nicer) form of this is Array(items).each
– mislav
Dec 13 '09 at 19:49
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