The 25 factorial in java

By Chinmoy on June 3, 2008

In java though, the factorial can be easily implemented in SE6 using the bigInteger class. The logic is the same as for finding factorials. The code goes as follows ::

import java.math.BigInteger;
import java.lang.*;
import java.util.Scanner;
class largenumber
{
public static void main(String args[])
{
Scanner in=new Scanner(System.in);
System.out.println("Enter a number for factorial");
int num=in.nextInt();
BigInteger fact=BigInteger.valueOf(1);
for(int i=2;i<=num;i++)
{
fact=fact.multiply(BigInteger.valueOf(i));
}
System.out.println("Factorial "+num+" is ::nt"+fact);
}
}