fleet.java

本套光盘提供了本书各章实例的所需的部分源程序文件以及数据库文件。读者 需要使用JDK 1.4(必需）版

import java.util.Iterator;
import java.util.List;
import java.util.Vector;
public class Fleet {
private List vehicles = new Vector();    
public void addVehicle(Vehicle vehicle) {
            vehicles.add(vehicle);
        }
public Iterator getVehicles() {
            return vehicles.iterator();
        }
public String toString() {
      StringBuffer buffer = new StringBuffer("Fleet:\n");
      Iterator iter = getVehicles();
      while (iter.hasNext()) {
                buffer.append("\t" + iter.next() + "\n");
            }
            return buffer.toString();
        }
    }