import java.util.HashMap;

// This code is not intended to go into the message.
// It can be used to exercise parts of the message that are in Java.

class COS_JavaMain {
    public static void testJList() {
	System.out.println("JList...");
	COS_JList lst = new COS_JList();
	lst.add(new Integer(11));
	lst.add(new Integer(22));
	lst.add(new Integer(33));
	lst.remove(new Integer(22));
	assert (lst.contains(new Integer(11))) : "bad containment";
	assert (!lst.contains(new Integer(22))) : "bad removal";
	assert (lst.size()==2) : "wrong list size";
	System.out.println("...passed");
    }

    public static void testJHashMap() {
	System.out.println("JHashMap...");
	COS_JHashMap map = new COS_JHashMap();
	map.put(new Integer(11), new Integer(77));
	assert (((Integer)map.get(new Integer(11))).intValue()==77) : "wrong get value";
	System.out.println("...passed");
    }

    public static void testJWorld() {
	System.out.println("JWorld...");
	COS_JWorld world = new COS_JWorld();
	COS_JRoom boston = new COS_JRoom();
	COS_JRoom newyork = new COS_JRoom();
	COS_JRobo bus = new COS_JRobo();
	world.add(boston, "boston");
	world.add(newyork, "newyork");
	world.add(bus, "bus");
	bus.setRoom(boston);
	new COS_JDoor((COS_JRoom)world.get("boston"),
		      "south",
		      (COS_JRoom)world.get("newyork"),
		      "north");
	//bus.setNextRoom(newyork);
	assert(bus.getRoom().getName().equals("boston"));
	world.update();
	assert(bus.getRoom().getName().equals("newyork")) : "wrong final dest";
	System.out.println("...passed");
    }

    public static void main(String[] args) {
	System.out.println("Running tests...");
	testJList();
	testJHashMap();
	testJWorld();
    }
}