Factorial in java


In this core java programming tutorial we will write a program to Find factorial of number in java.



In this program we will find out factorial of number.

input: 4
output: 24

Q.How we caluclate factorial in java?
A.Let’s say our input is: 4
 Than our factorial is 4x3x2x1 = 24.


Full Program/SourceCode/ Example in java >
/** Copyright (c), AnkitMittal www.JavaMadeSoEasy.com */
public class FactorialExample {
   public static void main(String...args){
          int num=4;
          System.out.println("Factorial of "+num+" is: "+findFactorail(num));    
   }
  
   /*
   * return factorial of num.
   */
   public static int findFactorail(int num){
          int factorial=1;
          while(num>0){
                 factorial=factorial*num;
                 num--;
          }
          return factorial;
   }
}
/*OUTPUT
Factorial of 4 is: 24
*/


So, in this core java programming tutorial we wrote a program to Find factorial of number in java, we learned how to calculate factorial of number in java.


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