Java - Math.asin() only returns 0

Question

I've been struggling with Math.asin() for a while.

System.out.println(Math.toDegrees(Math.asin(1 / 2)));

This very simple line of code pretty much sums up my desperation: The result should be 30°, however, I only get 0.0 as a result. Its not just these numbers, no matter which numbers I use, the result is 0.0. My question is, is this a known bug of Java, or am I missing something?

Bonus Information: I need asin() to calculate the angle between the centerpoints of two objects in my game.

`1/2 == 0`, you're dividing integers which results in integer. Try `1f/2` — Amongalen, Feb 19 '20 at 11:29
Oh my god. I'll never get used to that. Thank you, that's the solution. — Solo, Feb 19 '20 at 11:31
@Solo if that solved your question please remember to «tick» the answer, or answer the question yourself, so others can benefit from same question — MZ97, Feb 19 '20 at 18:57

score 0 · Answer 1 · edited Feb 19 '20 at 13:42

0

You’re doing integer division, please add a decimal point in the end of each number like this:

System.out.println(Math.toDegrees(Math.asin(1.0/2.0)))

edited Feb 19 '20 at 13:42

Azam M

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answered Feb 19 '20 at 11:30

MZ97

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Java - Math.asin() only returns 0

1 Answers1