How do I cast an int to a long parameter?

Question

w = dogContainer.getWidth();
dogContainer.add(eyes((int)(.37*w, .39*w*1.75, w/4), eyeColor), 0);

I am getting an error trying to cast an Int to all these parameters, how do I correctly do it?

Answer 1

Please post the compile time error so it is easier for people to help you.

You do not need to cast an int to a long (notice use of lower case data types) - this will be take care-off by an underlying technique called conversion.

However if you are using Integer and Long (Upper case and full words) - these are wrapper class and the conversion will NOT happen automatically. You will need to do something like

Long myLong = myInteger.longValue();

Also as an additional observation (since the code is not posted I cannot be certain) - you are multiplying with a double 1.75 - if you perform operations that include a double the result will be a double even if some of the operands (like say w ) is an int or a long (again something managed under the hod by conversion.