FACTORIAL JAVA PROGRAM

/*CSEMATTER.BLOGSPOT.IN
Program-java program to calculate factorial*/

import java.util.Scanner;
class factorial
{
public static void main(String a[])
{
Scanner sc=new Scanner(System.in);
int i,num,f=1;
System.out.println("ENTER THE NO. TO CALCULATE FACTORIAL");
num=sc.nextInt();
for(i=1;i<num;i++)
{
f=f*i;
}
System.out.println("factorial is"+f);

}
}