Page 221 - ComputerScience_Class_11

Program 7 Write a program in Java to input a number and print whether the number is a Krishnamurthy
number or not. A Krishnamurthy number is a number whose sum of the factorial of digits is
equal to the number itself.
1 import java.util.*;
2 class Krishnamurthy

3 {
4 public static void main(String args[])
5 {
6 //Declaring variable and taking value from user...

7 Scanner sc = new Scanner(System.in);
8 int n, temp, f, rem, sum_factorial=0, i;
9 System.out.print("Please enter a number : ");
10 n = sc.nextInt();
11 temp = n;
12 // checking condition for Krishnamurthy number

13 while(temp>0)
14 {
15 rem = temp % 10;
16 f=1;

17 for(i=1; i<= rem; i++)
18 {
19 f = f * i;
20 }
21 sum_factorial = sum_factorial + f;
22 temp = temp / 10;

23 }
24 // if they are equal number Krishnamurthy number.
25 if(sum_factorial == n)
26 System.out.println(n+ " is a Krishnamurthy Number.");

27 else
28 System.out.println(n+" is Not a Krishnamurthy Number.");
29 }
30 }

The output of the preceding program is as follows:
BlueJ: Terminal Window - Java

Options

Please enter a number: 145
145 is a Krishnamurthy Number.

Statements and Scope 219