Evon Number is a number whose number of digits is equal to the number of even digits.
Example 1: 2462 has four digits and four even digits. Hence it is an Evon Number.
Example 2: 1441 has four digits but two even digits. Hence it is not an Evon Number.
Java
import java.util.*;
public class EvonNumber
{
public static void main(String args[])
{
int n=0,r=0,temp=0,flag=0,count=0;
Scanner sc=new Scanner(System.in);
System.out.print("Enter a number: ");
n=sc.nextInt();
temp=n;
while(temp>0)
{
r=temp%10;
if(r%2==0)
{
flag++;
}
count++;
temp=temp/10;
}
if(flag==count)
{
System.out.println(n+" is an Evon Number");
}
else
{
System.out.println(n+" is not an Evon Number");
}
}
}