/*  Student information for assignment:
 *
 *  On <MY|OUR> honor, <NAME1> and <NAME2), 
 *  this programming assignment is <MY|OUR> own work
 *  and <I|WE> have not provided this code to any other student.
 *
 *  Number of slip days used:
 *
 *  Student 1 (Student whose Canvas account is being used)
 *  UTEID:
 *  email address:
 *  TA name:
 *  
 *  Student 2 
 *  UTEID:
 *  email address:   
 */

import java.util.Iterator;

/**
 * Students are to complete this class. 
 * Students should implement as many methods
 * as they can using the Iterator from the iterator 
 * method and the other methods. 
 *
 */
public abstract class AbstractSet314<E> implements ISet<E> {

    /* DELETE THIS COMMENT FROM YOUR SUBMISSION.
     * 
     * RECALL:
     * 
     * NO INSTANCE VARIABLES ALLOWED.
     * 
     * NO DIRECT REFERENCE TO UnsortedSet OR SortedSet ALLOWED.
     * (In other words the data types UnsortedSet and SortedSet
     * will not appear any where in this class.)
     * 
     * NO DIRECT REFERENCES to ArrayList or other Java Collections.
     * 
     * NO METHODS ADDED other than those in ISet and Object.
     */
     
      
    /**
     * Return a String version of this set. 
     * Format is (e1, e2, ... en)
     * @return A String version of this set.
     */
    public String toString() {
        StringBuilder result = new StringBuilder();
        String seperator = ", ";
        result.append("(");

        Iterator<E> it = this.iterator();
        while (it.hasNext()) {
            result.append(it.next());
            result.append(seperator);
        }
        // get rid of extra separator
        if (this.size() > 0) {
            result.setLength(result.length() - seperator.length());
        }

        result.append(")");
        return result.toString();
    }
}