Explain it...

Question

Input format:
integer
sign(+, -, *, /)
integer
Now why it shows 0.0 when I enter 1/2 ?
https://code.sololearn.com/cKyKUYJsXXVA/?ref=app

Answer 1

Line 18:
Change to
static double clac4(float n1, float n2)
OR
static double clac4(double n1, double n2)

Answer 2

Got it... thanks...