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Difference between new and override
...y.
When you hide a method, you can still access the original method by up casting to the base class. This is useful in some scenarios, but dangerous.
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Reflection - get attribute name and value on property
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I was hoping that I won't have to cast the attribute.
– developerdoug
Jul 9 '11 at 22:14
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Is there a Python equivalent to Ruby's string interpolation?
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@Caste see here: docs.python.org/library/stdtypes.html#string-formatting and post a follow up comment if you need any more details
– mikej
Dec 15 '10 at 13:59
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SQL Server String or binary data would be truncated
...nd do not care if it is not the case, then another solution is to forcibly cast the source query columns to their destination length (which will truncate any data that is too long):
Select Cast(TextCol1 As varchar(...))
, Cast(TextCol2 As varchar(...))
, Cast(TextCol3 As varchar(...))
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Cannot create an array of LinkedLists in Java…?
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For some reason you have to cast the type and make the declaration like this:
myMatrix = (LinkedList<IntegerNode>[]) new LinkedList<?>[numRows];
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Properly removing an Integer from a List
...calls the method that best suits your argument. Auto boxing and implicit upcasting is only performed if there's no method which can be called without casting / auto boxing.
The List interface specifies two remove methods (please note the naming of the arguments):
remove(Object o)
remove(int index...
Where is C not a subset of C++? [closed]
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C++ should require an explicit cast to int*.
– Mehrdad Afshari
Jul 29 '09 at 16:51
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What would be C++ limitations compared C language? [closed]
..._t) );
To make it compile as C++ you have to write:
foo_t* foo = static_cast<foo_t*>( malloc ( sizeof(foo_t) ) );
which isn't valid C any more. (you could use the C-style cast, it which case it would compile in C, but be shunned by most C++ coding standards, and also by many C programmers...
Get number of digits with JavaScript
...mbers won't be easy due to well known behaviour of floating point math, so cast-to-string approach will be more easy and fool proof. As mentioned by @streetlogics fast casting can be done with simple number to string concatenation, leading the replace solution to be transformed to:
var length = (nu...
Is null check needed before calling instanceof?
...lue of the RelationalExpression is
not null and the reference could be
cast to the ReferenceType
without raising a ClassCastException.
Otherwise the result is false."
So if the operand is null, the result is false.
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