package test4;

/**
 * A combination lock is a special kind of lock.  Each combination lock
 * has a combination.  The combination lock and its combination
 * form a composition.
 *
 */
public class CombinationLock extends Lock 
{
    /**
     * Initializes this combination lock to be open and have the given combination.
     * 
     * @param combination the combination of this combination lock.
     * @pre. combination != null
     */
    public CombinationLock(List<Integer> combination) 
    {

    }

    /**
     * Returns the combination of this combination lock.
     * 
     * @return the combination  of this combination lock.
     */
    public List<Integer> getCombination() 
    {

    }

    /**
     * Sets the combination of this combination lock to the 
     * given combination.
     * 
     * @param combination the new combination of this
     * combination lock.
     * @pre. combination != null
     */
    public void setCombination(List<Integer> combination) 
    {

    }

    /**
     * Tests whether this combination lock is the same as the given object.
     * Two combination locks are the same if they are either both open or
     * both closed and have the same combination.
     * 
     * @param object an object.
     * @return true if this lock is the same as the given object,
     * false otherwise.
     */
    public boolean equals(Object object) 
    {

    }

    /**
     * Returns the hash code of this lock.
     * 
     * @return the sum of the digits of the combination of this combination lock
     * if this combination lock is open, the sum of the digits of the combination 
     * of this combination lock plus 1 if this lock is closed.
     */
    public int hashCode()
    {

    }
}