Question

Write a menu driven program using switch case in java for the following


To enter a number and find whether the number is 'Neon' or not. ( a number is said to be 'Neon',
if sum of the digits the square of the number is equal to the number itself.
Sample input:9
​

Answer 1

Answer:

import java.util.Scanner;

public class NeonNumber

{

public static void main(String[] args)

{

int n,square,sum=0;

//create object of scanner.

Scanner sc = new Scanner(System.in);

//you have to enter number here.

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

n=sc.nextInt();

//calculate square.

square=n*n;

while(square>0)

{

sum=sum+square%10;

square=square/10;

}

//condition for checking sum is equal or not.

if(sum==n)

System.out.println("Its a Neon number.");

else

System.out.println("Its not a Neon number.");

}

}

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