2180. Count Integers With Even Digit Sum

class Solution {
    public int countEven(int num) {
        int count=0;
        int sum=0;
        int temp;
        if(num<0)
            return 0;
        for(int i=1;i<=num;i++){
            temp=i;
            sum=0;
            while(temp!=0){
                sum=sum+(temp%10);
                temp=temp/10;
            }
            if(sum%2==0)
                count++;
        }
        return count;
        
    }
}