java - 构造函数有问题吗？

Question

我在构建类时遇到问题，

以下代码抛出异常

public class Agent extends Board{    
    private static boolean arrow;
    private static boolean backmove;
    private static boolean gotGold;

    private static int atlocationX;
    private static int atlocationY;
    private static int faceposition; 
    private static int pathcounter;

    public boolean temporaryGold;
    public boolean temporaryWumpus;
    public boolean temporaryStench;
    public boolean temporaryBreeze;
    public boolean temporaryPit;

    int agentgui = 0;
    int label = 0;

    Block blockstorage[][] = new Block[4][4];
    KnowledgeBase kb = new KnowledgeBase();

    public Agent() {
        super();
    }

    public void Agent(){
        Agent.arrow = true;
        Agent.faceposition = 2;
        Agent.atlocationX = 0;
        Agent.atlocationY = 0;
        Agent.backmove = false;
        Agent.gotGold = false;
        Agent.pathcounter = 1;
    }
}

问题是，当我尝试添加

Agent agent = new Agent();

在我的其他一些类(class)中，例如:

public class Board {
    Agent agent = new Agent();
}

它返回一个错误:

Exception in thread "AWT-EventQueue-0" java.lang.StackOverflowError

我也尝试过，但还是一样。

是什么导致了这个异常？

Answer 1

您有一个带有间接递归调用的无限循环。

构建 Board对象需要 Agent对象，反之亦然