Question

wap to input a number using scanner class and check whether the number is special number or not if number is special then print out msg no. is special

Answer 1

Hi friend,

The answer is:-

import java.util.*;

public class SpecialNumber

 {   
 
public static void main(String[] args)

 {       

Scanner scanner = new Scanner(System.in);  

System.out.print("Enter a number: ");   

int n = scanner.nextInt();     
 
boolean specialNumber = special(n);  
    
if (specialNumber) {      
    
System.out.println(n + " is a special number");   

    } else { 
  
  System.out.println(n + " is not a special number");

       } 

  }    

 public static boolean special(int n) {     

  int temp = n;   

  int sum = 0;      

 while (temp > 0) {       

 int remainder = temp % 10;           

temp = temp / 10;           

sum = sum + factorial(remainder);      

 }      

 if (n == sum) {           

return true;       

} else {           

return false;       

}   

}     

public static int factorial(int n) {       

int factorial = 1;       

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

factorial = factorial * i;     

  }      

 return factorial;  

 }

}

 

Hope it helps!