Factorial_Command_Line_Argument.java

class A
{
static int fact(int n)
{
if(n==0||n==1)
{
return 1;
}
else
{
return(n*fact(n-1));
}
}
public static void main(String args[])
{
System.out.println(fact(Integer.parseInt(args[0])));
}
}