import java.util.*;

/** Representation of a Journal in the library circulation system */
public class Journal extends CirculationItem {
  
  // additional instance variables
  private ArrayList articles;                  // list of articles in this Journal
  
  /** Construct a Journal with the given title, call number, and an empty list of articles */
  public Journal(String title, String callNumber) {
    super(title, callNumber);
    articles = new ArrayList();
  }
  
  /** Set the list of articles to the given list */
  public void setArticles(ArrayList list) {
    articles = list;
  }
  
  /** Get the list of articles in this Journal */
  public ArrayList getArticles() {
    return articles;
  }
  
  /** Return a representation of this Journal as a string */
  public String toString() {
    return "Journal(title=" + getTitle() + ", call number=" + getCallNumber() + 
      ", checked out=" + !inLibrary() + ", articles=" + articles + ")";
  }
}