Write a Java program to calculate factorial of a
number using recursion.
import java.util.Scanner;
public class FactorialCalculator {
public
static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print("Enter a non-negative integer to calculate its
factorial: ");
int n = scanner.nextInt();
if
(n < 0) {
System.out.println("Factorial is not defined for negative
numbers.");
} else
{
long factorial = calculateFactorial(n);
System.out.println("Factorial of " + n + " is: " +
factorial);
}
}
public
static long calculateFactorial(int n) {
if
(n == 0 || n == 1) {
return 1;
}
else {
return n * calculateFactorial(n - 1);
}
}
}
