Java(TM) Boutique - Tutorial - Access Your Stored Java Objects with the Iterator Design Pattern

Listing 9. The revised BaseballTeams class.

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.StringTokenizer;

public class BaseballTeams implements SportsTeams {
	private List<Sports> baseballList;
	private static final String baseballFile = "mlb2006.csv";

	public BaseballTeams() {
		buildTeamList();
		}

	public void buildTeamList() {
		baseballList = new ArrayList<Sports>();
		try {
			BufferedReader file = new BufferedReader(new FileReader(baseballFile));
			String line = null;
			while((line = file.readLine()) != null) {
				String team = null;
				int win = 0;
				int loss = 0;
				StringTokenizer tokenizer = new StringTokenizer(line,",\n");
				while(tokenizer.hasMoreTokens()) {
					team = tokenizer.nextToken();
					win = new Integer(tokenizer.nextToken());
					loss = new Integer(tokenizer.nextToken());
					}
				Sports baseball = new Baseball(team,win,loss);
				baseballList.add(baseball);
				}
			file.close();
			}
		catch(FileNotFoundException exception) {
			exception.printStackTrace();
			}
		catch(IOException exception) {
			exception.printStackTrace();
			}
		}

	public Iterator<Sports> iterator() {
		return new BaseballIterator(baseballList);
		}
	}

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