In this Java program, we’ll learn how to find the factorial of a number in your Java program.
How to Find the Factorial of a Number?
Example 1: using loop
RUN CODE SNIPPETclass Main{
public static void main(String args[]){
int i,fact=1;
int number=6;
for(i=1;i<=number;i++){
fact=fact*i;
}
System.out.println("Factorial of "+number+" is: "+fact);
}
}OUTPUT
Factorial of 6 is: 720
Example 2: using recursion
RUN CODE SNIPPETclass Main{
static int factorial(int n){
if (n == 0)
return 1;
else
return(n * factorial(n-1));
}
public static void main(String args[]){
int i,fact=1;
int number=5;
fact = factorial(number);
System.out.println("Factorial of "+number+" is: "+fact);
}
}OUTPUT
Factorial of 5 is: 120
