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What is a covariant return type?
...ference to a MyFoo object will be able to invoke clone() and know (without casting) that the return value is an instance of MyFoo. Without covariant return types, the overridden method in MyFoo would have to be declared to return Object - and so calling code would have to explicitly downcast the re...
Formatting Numbers by padding with leading zeros in SQL Server
...pad with 4 leading zero :)
declare @number int = 1;
print right('0000' + cast(@number as varchar(4)) , 4)
print right('0000' + convert(varchar(4), @number) , 4)
print right(replicate('0',4) + convert(varchar(4), @number) , 4)
print cast(replace(str(@number,4),' ','0')as char(4))
print format(@num...
Change the Right Margin of a View Programmatically?
...ight, bottom
tv.setLayoutParams(params);
I can't test it right now, so my casting may be off by a bit, but the LayoutParams are what need to be modified to change the margin.
NOTE
Don't forget that if your TextView is inside, for example, a
RelativeLayout, one should use RelativeLayout.LayoutParam...
UICollectionView spacing margins
... This works, but the collection.collectionViewLayout needs a cast as in the example by @Pooja: UICollectionViewFlowLayout *flow = (UICollectionViewFlowLayout*) self.collectionViewLayout;
– jwj
Dec 5 '13 at 18:56
...
C# : 'is' keyword and checking for Not
......
Update (considering the OP's code snippet):
Since you're actually casting the value afterward, you could just use as instead:
public void Update(DocumentPart part) {
part.Update();
IContainer containerPart = part as IContainer;
if(containerPart == null) return;
foreach(Docu...
Int division: Why is the result of 1/3 == 0?
...
Explicitly cast it as a double
double g = 1.0/3.0
This happens because Java uses the integer division operation for 1 and 3 since you entered them as integer constants.
...
Sending Arguments To Background Worker?
...s List<object>;
extract your multiple arguments from this list and cast them and use them.
}
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Convert.ChangeType() fails on Nullable Types
...ample, but this is a relatively robust approach, and separates the task of casting from unknown value to unknown type
I have a TryCast method that does something similar, and takes nullable types into account.
public static bool TryCast<T>(this object value, out T result)
{
var type = ty...
How can I convert a string to a number in Perl?
...00'..'15') and needed to remove the leading zeros in some places. This 0+ casting to a number also achieves that.
– stevesliva
Nov 4 '16 at 16:18
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Can an int be null in Java?
...be checked for null, however, you can safely assign null to int in Java by casting it to Integer, for example if the check(root) method can return null then you can safely cast it to int by doing something like this: int data = (Integer)check(node);
– sactiw
O...