Not sure why I keep getting an error on this if (a%2) == 0 {

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Help with error?

Use the keyboard to enter a positive number. Determine the number of even digits and odd digits in the entered number.
If a number is divisible by 2 without a remainder (i.e. the remainder is zero), then it is even.
And we'll increase the even digit counter (static variable even) by 1.
Otherwise, the number is odd, so we'll increase the odd digit counter (static variable odd).
Display the following message: "Even: a Odd: b", where a is the number of even digits and b is the number of odd digits.

Example for 4445:
Even: 3 Odd: 1

Requirements:

The program must read data from the keyboard.
The main method should calculate how many even digits are in the entered number and then write this number to the variable even.
The main method should calculate how many odd digits are in the entered number and then write this number to the variable odd.
The program should display text on the screen.
The displayed text must match the task conditions.

package com.codegym.task.task06.task0606; import java.io.*; /* Even and odd digits */ public class Solution { public static void main(String[] args) throws IOException { BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); int a= Integer.parseInt(reader.readLine()); int odd, even = 0; while (a >0) { if (a%2) == 0 { even ++; } else { odd++; } a/=10 } System.out.println("Even: "+even+" Odd:"+odd); } //create even and odd counters - done //find index of each digit // evaluate modulo // increment correct counter //println - done

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Heavy

Level 41

18 September 2019, 15:52

It is a parenthesis issue, you closed the statement a little early. When you do

if (a%2)

it returns the dividing result an integer number, not a boolean value. So it doesn't check the "== 0" after that because it is out of the if statement.

Heavy

Level 41

18 September 2019, 16:03

Also there are some little more issue, if you fix the if statement. When you declare the int variables below, you only give a starting value 0 for the "even". I use the IntellJ Idea, it showed the error. In methods the variables doesn't get initialized by their default values (if I'm wrong please correct me), so it doesn't start as 0, it doesn't compiles.

int odd, even = 0;

The other one is a simple missing ";", and a missing space in the output, after those fixed it displays the desired result, for the example input.

Tara Edwards

Level 6 , United States

18 September 2019, 20:21

Thanks, Heavy - I was able to get it to run with your guidance. But I'm failing some of the requirements stiil. I posted a new question about that. https://codegym.cc/help/4930