我昨天通过将所有类分成单独的文件来解决我之前的问题。尽管如此，我还是把所有的代码都写下来了，没有看到任何错误能够编译程序。或者我是这么想的。
这是错误代码：
Exception in thread "main" java.lang.StackOverflowError
at java.util.AbstractCollection.<init>(Unknown Source)
at java.util.AbstractList.<init>(Unknown Source)
at java.util.Vector.<init>(Unknown Source)
at java.util.Vector.<init>(Unknown Source)
at java.util.Vector.<init>(Unknown Source
这是我得到错误的地方（标有问题？）
public class GameWorld implements IObservable, IGameWorld
{
// create collections class
public Vector<GameObject> GameObjectList = new Vector<GameObject>(); // PROBLEM
private Vector<IObserver> ObserverList = new Vector<IObserver>();
// declare objects
Tank pTank = new Tank(10, 10);
// other objects and variables to declare
public GameWorld()
{
// add objects to GameObjectList
}
// accessors/mutators
}
我在这里遇到另一个错误
public class Tank extends Movable implements ISteerable
{
private int armorStrength;
private int missileCount;
public Tank()
{}
public Tank(int armStr, int misslCt) // problem?
{
armorStrength = armStr; // default armorStrength
missileCount = misslCt; // default missileCount
}
public void setDirection(int direction)
{
this.setDirection(direction); // get input from left turn or right turn
// updateValues();
}
// access/mutators here
我很困惑在这里做什么。
这是主要代码
public class Starter {
public static void main (String args[])
{
Game g = new Game();
}
}
它有一个 Game 类，基本上是程序的 GUI
public class Game extends JFrame {
private GameWorld gw;
private MapView mv; // new in A2
private ScoreView sv; // new in A2
公共游戏（）{
gw = new GameWorld(); // create “Observable”
mv = new MapView(); // create an “Observer” for the map
sv = new ScoreView(gw); // create an “Observer” for the game state data
gw.addObserver(mv); // register the map Observer
gw.addObserver(sv); // register the score observer
// code here to create menus, create Command objects for each command,
// add commands to Command menu, create a control panel for the buttons,
// add buttons to the control panel, add commands to the buttons, and
// add control panel, MapView panel, and ScoreView panel to the frame
setVisible(true);
}
}
并且有很多其他功能的参考。