Write a program to find factorial of list of number reading input as command line argument.

class Factorial
{
    public static void main(String[] arg)
    {
        int[] num=new int[10];
        if(arg.length==0)
        {
            System.out.println("No Command Line argument passed.");
            return;
        }
        for(int i=0;i<arg.length;i++)
        num[i]=Integer.parseInt(arg[i]);
        for(int i=0;i<arg.length;i++)
        {
            int fact=1;
            for(int j=1;j<=num[i];j++)
            fact *=j;
            System.out.println("The factorial of "+arg[i]+" is : "+fact);
        }
    }
}

Output

C:\Users\Jaisha\Desktop\Java>javac Factorial.java

C:\Users\Jaisha\Desktop\Java>java Factorial
No Command Line argument passed.

C:\Users\Jaisha\Desktop\Java>java Factorial 5 6
The factorial of 5 is : 120
The factorial of 6 is : 720