Adding an integer to a double?

[tokoolio]

int y = 3;
double z= y+4.0;

Will the right hand side of the bottom line return a double, or will this be an error? I know y is an integer, but I believe I heard something like if you if you write double z=5, then you'll get 5.0 as an output, but I am not sure.

Basically will the code work?

[eRaaaa]

Basically will the code work?

Yes. y+4 will work too....

[j2me64]

Basically will the code work?

yes, the result will be a double.

[tokoolio]

What if I had int z= y+4.5; would it just return y+4? Or perhaps int z = double y, would y just be rounded down?

Thanks btw.

[quad64bit]

would it just return y+4?

No.

Or perhaps int z = double y, would y just be rounded down?

Yes.
:D

[parminder]

Presence of any double in a expression results in promotion of all the variables in that expression to a double.
So yes the code will work returning a double value.