package cs3500.lec09;

import java.util.Collection;
import java.util.Iterator;

/**
 * Interface for simple sets of integers. This is part of a demonstration of
 * the dangers of inheritance.
 */
public interface IntSet1 extends Iterable<Integer> {
  /**
   * Adds the given value to this set.
   *
   * @param value the integer add
   */
  void add(int value);

  /**
   * Adds all the values in the given collection to this set.
   *
   * @param values the integers to add
   */
  default void addAll(Collection<Integer> values) {
    for (int z : values) {
      add(z);
    }
  }

  /**
   * Removes the given value from this set, if present.
   *
   * @param value the integer to remove
   */
  void remove(int value);

  /*
   * Determines whether a particular integer value is a member of this set.
   *
   * @param value the integer to check
   * @return whether {@code value} is a member of this set
   */
  boolean member(int value);

  /**
   * Returns an iterator over the elements.
   *
   * @return an iterator
   */
  Iterator<Integer> iterator();
}