java/Java/factorial.java at main · narayankr12/java

41 lines (31 loc) · 1.12 KB

import java.util.Scanner;

// Class to calculate factorial

class FactorialCalculator {

// Method to calculate factorial

public int calculateFactorial(int number) {

int factorial = 1;

// Loop to calculate factorial

for (int i = 1; i <= number; i++) {

factorial *= i;

}

return factorial;

}

// Main class

public class FactorialMain {

public static void main(String[] args) {

// Create scanner object to take input

Scanner scanner = new Scanner(System.in);

// Create object of FactorialCalculator class

FactorialCalculator calculator = new FactorialCalculator();

// Take user input

System.out.print("Enter a number to calculate its factorial: ");

int number = scanner.nextInt();

// Calculate factorial using the class method

int result = calculator.calculateFactorial(number);

// Print the result

System.out.println("The factorial of " + number + " is: " + result);

// Close scanner

scanner.close();

}

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