+ 6

Which ones are valid as floats? 2, 0, 5.5f, 4.3 And the answers are 2, 0 and 5.5f. Is question correct or I need some education?

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10th Jul 2019, 5:13 AM
david chongo
david chongo - avatar
3 ответов
+ 5
Ok making sense there Tibor. Thanks
10th Jul 2019, 5:36 AM
david chongo
david chongo - avatar
+ 4
https://csharp.net-tutorials.com/data-types/floating-points/#aelm5191 david chongo look this tutorial. Answer is correct: 1) 0, 2 - we can use as float. 2) 4.3 - is double data type, it's not valid as float. 3) 5.5f - float. 'f' - the symbol of float.
10th Jul 2019, 5:53 AM
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+ 3
I tried it on the code playground. If you do this in C#: float x = 4.3; Console.WriteLine(x); You get an error message because the default floating point type of C# is double, which has more precision than float. Therefore it is not possible for the compiler to implicitly downcast it. So you either use the f suffix to signal the float notation, or do an explicit cast: float x = 4.3f; float y = (float) 4.3; On the other hand it is possible to upcast integers to float values, because no precision is lost.
10th Jul 2019, 5:32 AM
Tibor Santa
Tibor Santa - avatar