public void addNumber(int number) {
        number = this.sum + number;
        this.sum = number;

        this.count++;
    }

    public int sum() {

        return this.sum;
    }

    public void evens(int number) {

        if (number % 2 == 0) {
            this.sum = number + this.sum;
        }

    }

    public int evenT() {
        return this.sum;
    }

    public void odds(int number) {

        if (number % 2 != 0) {
            this.sum = number + this.sum;
        }

    }

    public int oddsT() {
        return this.sum;
    }

    public int getCount() {
        return this.count;  // write code here
    }

    public double average() {
        if (this.count == 0) {
            return 0;
        } else {
            return (double) this.sum / this.count;
        }

    }

}

import java.util.Scanner;





public class MainProgram {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        Statistics statistics = new Statistics();
        Statistics even = new Statistics();
        Statistics odd = new Statistics();
        {
            System.out.println("Enter numbers: ");
            while (true) {

                int input = Integer.valueOf(scanner.nextLine());
                if (input == -1) {
                    break;
                }
                statistics.addNumber(input);
                even.evens(input);
                odd.odds(input);
            }

            System.out.println("Sum: " + statistics.sum());
            System.out.println("Sum of even numbers: " + even.evenT());
             System.out.println("Sum of odd numbers: " + odd.oddsT());
            //  System.out.println("Sum of odd numbers: " + odd);

        }
    }
}