PIbd-14_Antonova_A.A.__Hard/CollectionGenericObjects/MassiveGenericObjects.java

package CollectionGenericObjects;

import java.lang.reflect.Array;

public class MassiveGenericObjects<T> implements ICollectionGenericObjects<T> {

    private T[] _collection;
    int Count;

    @Override
    public int getCount() {
        return _collection.length;
    }

    @Override
    public void SetMaxCount(int count, Class<T> type) {
        if (count > 0) {
            _collection = (T[]) Array.newInstance(type, count);
            Count = count;
        }
    }

    @Override
    public T Get(int position) {
        if (position >= getCount() || position < 0)
            return null;
        return (T) _collection[position];
    }

    @Override
    public int Insert(T obj) {
        for (int i = 0; i < _collection.length; ++i)
        {
            if (_collection[i] == null)
            {
                _collection[i] = obj;
                return i;
            }
        }
        return -1;
    }

    @Override
    public int Insert(T obj, int position) {
        if (position < 0 || position > Count)
        {
            return -1;
        }
        if (_collection[position] == null)
        {
            _collection[position] = obj;
            return position;
        }
        for (int i = position + 1; i < _collection.length; ++i)
        {
            if (_collection[i] == null)
            {
                _collection[i] = obj;
                return position;
            }
        }
        for (int i = 0; i < position; ++i)
        {
            if (_collection[i] == null)
            {
                _collection[i] = obj;
                return position;
            }
        }
        return -1;
    }

    @Override
    public T Remove(int position) {
        if (position >= 0 && position < Count)
        {
            T remove = _collection[position];
            _collection[position]= null;
            return remove;
        }
        return null;
    }


}