Java Calculation Isn't Working

[Rheinwasser]

double speed = 1-((1/width)/100); 

why doesnt this work?

speed is equals 1.0 for some reason when it should be 0.996.

it's really weird, if i divide through 10 it's 3.0.

 

i hope somebody can help.

thanks!

[fizzlesticks]

Is width an integer? Try casting it to a float/double.

[Rheinwasser]

Is width an integer? Try casting it to a float/double.

yes, it is.

casting didnt work, i initialized it as a double, now it works!

thanks 

[manon_gfx]

In java, if you do an operation with integers, it will give you an integer. 7 / 2 = 3 for example.
If you want it to give you a double, you should do the operation with doubles, 7.0 / 2.0 = 3.5.

Doing an operation with an integer and a double will give you a double 7 / 2.0 = 3.5 and 7.0 / 2 = 3.5

[abenmariem]

I think that you have a casting issue.

I suggest to take a look at this java casting course to understand better the concept.

I hope that this will help.