/*
 * Copyright (C) 2021 Gabriel Venberg
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

/**
 *@date 02/10/2021
 * @author Gabriel Venberg
 */
public interface Bag<E> {
    
    public int size();
    
    public boolean isEmpty();
    
    public void clear();
    
    public int getFrequencyOf(E e);
    
    public boolean contains(E e);
    
    public void add(E e);
    
    public E remove(E e);
    
    public E remove();
    
    public E get(int i);
    
    public String toString();
    
    public boolean equals(Object o);
}
