How to Find Factorial in Salesforce Apex Programming.

Here is an example of how to find the factorial of a number using a for loop in Apex:

Programs:

public class Factorial {
    public static Integer factorial(Integer n) {
        Integer result = 1;
        for (Integer i = 1; i <= n; i++) {
            result *= i;
        }
        return result;
    }
}

You can then call the factorial method and pass in the number you want to

find the factorial of, like so:

Integerx=7; 
IntegerxFactorial= Factorial.factorial(x); 
System.debug(xFactorial); 
// Output: 5040

With Real Time Execution Part:

This code creates a class 'Factorial' and its function 'factorial' takes a parameter n

which is the number whose factorial is to be found. A variable 'result' is initialized to 1 and then using a for loop from 1 to n, the result is multiplied by the current value of loop variable i. This continues till the loop ends and the final result is returned.