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Difference between DirectCast() and CType() in VB.NET
...just gotten into VB.NET. I generally use CType (and CInt, CBool, CStr) for casts because it is fewer characters and was the first way of casting which I was exposed to, but I am aware of DirectCast and TryCast as well.
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Better way to cast object to int
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You have several options:
(int) — Cast operator. Works if the object already is an integer at some level in the inheritance hierarchy or if there is an implicit conversion defined.
int.Parse()/int.TryParse() — For converting from a string of unknown format...
Why cannot cast Integer to String in java?
...archy.
Object
/ \
/ \
String Integer
The casting which you are trying, works only if they are in the same hierarchy, e.g.
Object
/
/
A
/
/
B
In this case, (A) objB or (Object) objB or (Object) objA will work.
Hence as others have mentioned a...
Why don't Java's +=, -=, *=, /= compound assignment operators require casting?
...valent to E1 = (T)((E1) op (E2)), so that's kind of like implicit down typecasting (down from long to int). Whereas in i = i+j, we have to do it explicitly, ie, provide the (T) part in E1 = ((E1) op (E2)) Isn't it?
– bad_keypoints
Sep 22 '12 at 14:52
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Assign null to a SqlParameter
...value or a DBNull type value, which are not compatible.
You can of course cast the instance of AgeIndex to be type object which would satisfy the ?: requirement.
You can use the ?? null-coalescing operator as follows
SqlParameter[] parameters = new SqlParameter[1];
SqlParameter planIndexPara...
Easiest way to convert int to string in C++
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@Flying: under VS2010 you have to explicitly cast the converting integer to one of the following types [_Longlong, _ULonglong, long double]; i.e: string s = to_string((_ULonglong)i);
– Zac
Dec 6 '13 at 14:50
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SQL Server 2008: How to query all databases sizes?
... it works for me:
SELECT
DB_NAME(db.database_id) DatabaseName,
(CAST(mfrows.RowSize AS FLOAT)*8)/1024 RowSizeMB,
(CAST(mflog.LogSize AS FLOAT)*8)/1024 LogSizeMB,
(CAST(mfstream.StreamSize AS FLOAT)*8)/1024 StreamSizeMB,
(CAST(mftext.TextIndexSize AS FLOAT)*8)/1024 TextIndexSiz...
Cast Double to Integer in Java
Any way to cast java.lang.Double to java.lang.Integer ?
17 Answers
17
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MySQL selecting yesterday's date
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You can get yesterday's date by using the expression CAST(NOW() - INTERVAL 1 DAY AS DATE). So something like this might work:
SELECT * FROM your_table
WHERE DateVisited >= UNIX_TIMESTAMP(CAST(NOW() - INTERVAL 1 DAY AS DATE))
AND DateVisited <= UNIX_TIMESTAMP(CAST(NOW...
Getting the max value of an enum
... Bang = 2
}
// this gets Fizz
var lastFoo = Enum.GetValues(typeof(Foo)).Cast<Foo>().Last();
Edit
For those not willing to read through the comments: You can also do it this way:
var lastFoo = Enum.GetValues(typeof(Foo)).Cast<Foo>().Max();
... which will work when some of your en...