as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
create a java program for calculating the factorial of a number
user
public class factorial {
    public static void main(string[] args) {
        int num = 5;
        int factorial = 1;
        for(int i = 1; i <= num; i++) {
            factorial = factorial * i;
        }
        system.out.println("the factorial of " + num + " is: " + factorial);
    }
}
assistant