In this tutorial you will learn about the Program to check Niven Number Program in Java and its application with practical example.
In this tutorial, we will learn to create a Java Program to check Niven Number Program in Java
Prerequisites
Before starting with this tutorial we assume that you are best aware of the following Java programming topics:
- Java Operators.
- Basic Input and Output function in Java.
- Class and Object in Java.
- Basic Java programming.
- If-else statements in Java.
- Function in java.
Harshad (Or Niven) Number
A Number is called a Harshad number if sum of the digits is divisible by the sum of its digits
For example:-> 18 is a Harshad number base of 10, because sum of the its digit which is “(1 and 8) = 9″ (1 + 8 = 9), and 18 is divisible by 9 (18 % 9 == 0).
Program to check Niven Number Program in Java
In this program we would find the given number is Niven number first of all we will take the input from the user and check whether it is Niven number or not. If it’s not then the program will show the output as it’s not a Niven number.
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// java program to find niven nmber import java.util.*; class HarshadNo { public static void main(String args[]) { // decalring variable and taking value from user Scanner sc = new Scanner(System.in); System.out.print("Enter a number : "); int num = sc.nextInt(); int temp = num, d, sum = 0; //caluclating sum of digits while(temp>0) { d = temp%10; sum = sum + d; temp = temp/10; } // printing the result if(num%sum == 0) System.out.println(num+" is Harshad Number."); else System.out.println(naum+" is not a Harshad Number."); } } |
Output
Niven number
Not a Niven number
In the above program, we have first declared and initialized a set variables required in the program.
- num= it will hold entered number.
- temp = it will hold temp value
- sum= for adding digit sum.
- d= it will hold digits of a number
After declaring variables we take a number form user.
After that we add digit sum of a number.
and then we divide the sum with original number to find it is a Niven number or not.
Niven number (or harshad number)if it is divisible by the sum of its digits .
