Zadacha1

import java.util.*;

public class Zadacha1 {

    public static Map<Integer, Integer> rNumbers (int[] arr) {
        Map<Integer, Integer> map = new HashMap<Integer, Integer>();

        int lenght = arr.length;
        for(int i = 0; i < lenght; i++) {
            int key = arr[i];
            if (map.containsKey(key)) {
                int value = map.get(key);
                map.put(key, value + 1);
            } else {
                map.put(key, 1);
            }
        }
        return map;
    }
    public static void main(String[] args) {
        int[] arr = {8,2,5,2,96,5,8,7,2,85,2,85,96};
        System.out.println(rNumbers(arr));
    }
}