大约有 2,600 项符合查询结果（耗时：0.0215秒） [XML]
Int division: Why is the result of 1/3 == 0?
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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.
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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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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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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...
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...
Passing an array to a function with variable number of args in Swift
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You can cast the function:
typealias Function = [Int] -> Int
let sumOfArray = unsafeBitCast(sumOf, Function.self)
sumOfArray([1, 2, 3])
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How do I pass a class as a parameter in Java?
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public void callingMethod(Class neededClass) {
//Cast the class to the class you need
//and call your method in the class
((ClassBeingCalled)neededClass).methodOfClass();
}
To call the method, you call it this way:
callingMethod(ClassBeingCalled.class);
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glob exclude pattern
...t sets, but this kind of operation only works on sets, hence why neutrinus cast it. If you need it to remain a list, simply wrap the entire operation in a cast: list(set(glob("*")) - set(glob("eph")))
– Nathan Smith
Aug 10 '17 at 21:48
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Is there a way to avoid null check before the for-each loop iteration starts? [duplicate]
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@Dataknife More like it just does the casting for you. There are no generics types at runtime with either case, and the implementation of emptyList() internally contains the cast (with a suppression on unchecked too).
– Edwin Buck
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How to access random item in list?
...mString = strings.PickRandom();
If all you have is an ArrayList, you can cast it:
var strings = myArrayList.Cast<string>();
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