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Throw new exception in ternary state

I have the following lines of code:

List<Long> list = new ArrayList<>();

if (n < 0) throw new RuntimeException();

if (n == 0) return list;

I want to use Ternary condition

:

return (n < 0) ? (throw new RuntimeException()) : list;

But I have a compile time exception.

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2 answers


You cannot throw a triple clause exception. Both parameters must return a value that is throw new Exception();

not satisfying.



Solution, use if

.

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It doesn't compile because what you want to do is not legal in Java. You cannot return throw new RuntimeException()

. Your return should always return a value.



You should use if instead.

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