Factorial Program in Java

Configurare noua (How To)

Situatie

Factorial Program in Java: Factorial of n is the product of all positive descending integers. Factorial of n is denoted by n!. For example:

  1. 4! = 4*3*2*1 = 24
  2. 5! = 5*4*3*2*1 = 120

Here, 4! is pronounced as “4 factorial”, it is also called “4 bang” or “4 shriek”.

Solutie

Let’s see the factorial Program using loop in java.

  1. class FactorialExample{
  2.  public static void main(String args[]){
  3.   int i,fact=1;
  4.   int number=5;//It is the number to calculate factorial  
  5.   for(i=1;i<=number;i++){
  6.       fact=fact*i;
  7.   }
  8.   System.out.println(“Factorial of “+number+” is: “+fact);
  9.  }
  10. }

Output:

Factorial of 5 is: 120

Tip solutie

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