Some test

 public static int count(int times, int array[]){
        Map<Integer, Integer> map = new HashMap<>();

        for (int i = 0; i < array.length; i++) {
            //If the map doesn't contain the value of array[i], add a Key Value to the map;
            if(!map.containsKey(array[i])){
                map.put(array[i], 1);
            }
            //If the map already has array[i], increase value by one
            else{
                map.put(array[i], map.get(array[i]) + 1);
            }
        }

        for (int i = 0; i < map.size(); i++) {
            if(map.get(array[i]) == times){
                return array[i];
            }
        }

        //No such value exist
        return -1;
    }

    public static void main(String[] args) {
        System.out.println(count(2, new int[]{7,2,3,3}));
    }