Java - Factorial

Question

I am printing the factorial of the first 10 numbers, so it is 0 - 9. The below code works for me. But I am unable to make the loop such that the factorial of 0 is within the loop too. Any advice is appreciated. Thank you.

public class fact {



    public static void main(String[] args) { 

        System.out.println("\n\n(f) Loop to print first 10 factorial numbers");



        System.out.println("\nFactorial of 0 is 1");



        int fact = 1; 

        int index = 1; 

        while (index < 10) 



        { 

            fact*=index; 

            System.out.println("Factorial of " + index + " is " + fact); 

            index++; 

        } 

    }

}

Answer 1

How about adding an if condition in your while loop for index 0

    int fact = 1; 
    int index = 0; 
    while (index < 10) 

    { 

        if(index == 0)
          System.out.println("\nFactorial of 0 is 1");
        else {
           fact*=index; 
           System.out.println("Factorial of " + index + " is " + fact); 
       }
       index++; 
    }

Java - Factorial

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