java division: Inconvertible types found: int

Question

What's wrong with this code

int numOfPrimes=pf.FindNumPrimes(10000);
Double frequency=((Double)numOfPrimes)/10000d;

Says

inconvertible types found : int required: java.lang.Double Double frequency=((Double)numOfPrimes)/10000d;

Answer 1

You're trying to autobox an int to a Double object, which is invalid.

Try:

int numOfPrimes=pf.FindNumPrimes(10000);

Double frequency=((double)numOfPrimes)/10000d;