Средна вредност [Лаб. 1.1]

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Array<E> {
    private E data[];
    private int size;

    public Array(int size) {
        data = (E[])new Object[size];
        this.size = size;
    }

    public int getLength() {
        return size;
    }

    public E get(int position) {
        if(position >= 0 && position < size)
            return data[position];
        return null;
    }

    public void set(int position, E o) {
        if(position >= 0 && position < size)
            data[position] = o;
    }

    public static int brojDoProsek(Array<Integer> niza){
        int sum = 0, avg = 0;

        for(int i = 0; i < niza.getLength(); i++) {
            sum += niza.get(i);
        }

        avg = sum / niza.getLength();

        int min = Math.abs(avg - niza.get(0)), index = 0;

        for(int i = 1; i < niza.getLength(); i++) {
            if(Math.abs(avg - niza.get(i)) < min) {
                min = Math.abs(avg - niza.get(i));
                index = i;
            }
            if(Math.abs(avg - niza.get(i)) == min) {
                if(niza.get(i) < niza.get(index)) {
                    min = niza.get(i);
                    index = i;
                }
            }
        }

        return niza.get(index);
    }

    public static void main(String[] args) throws IOException{
        BufferedReader stdin = new BufferedReader( new InputStreamReader(System.in));
        String s = stdin.readLine();
        int N = Integer.parseInt(s);

        Array<Integer> niza = new Array<Integer>(N);

        for(int i = 0; i < N; i++) {
            s = stdin.readLine();
            niza.set(i, Integer.parseInt(s));
        }

        System.out.println(brojDoProsek(niza));
    }
}