Computer Applications
Write a program by using a class with the following specifications:
Class name — Factorial
Data members — private int n
Member functions:
- void input() — to input a number
- void fact() — to find and print the factorial of the number
Use a main function to create an object and call member methods of the class.
Java
Encapsulation & Inheritance in Java
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Answer
import java.util.Scanner;
public class Factorial
{
private int n;
public void input() {
Scanner in = new Scanner(System.in);
System.out.print("Enter the number: ");
n = in.nextInt();
}
public void fact() {
int f = 1;
for (int i = 1; i <= n; i++)
f *= i;
System.out.println("Factorial of " + n
+ " = " + f);
}
public static void main(String args[]) {
Factorial obj = new Factorial();
obj.input();
obj.fact();
}
}Variable Description Table
Program Explanation
Output
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