java – 有关堆栈溢出错误的帮助?
作者:互联网
这是我得到的错误:
java.lang.StackOverflowError
at apple.awt.CGraphicsDevice.getScreenInsets(Native Method)
at apple.awt.CGraphicsDevice.getScreenInsets(CGraphicsDevice.java:673)
at apple.awt.CToolkit.getScreenInsets(CToolkit.java:741)
at java.awt.Window.init(Window.java:394)
at java.awt.Window.<init>(Window.java:432)
at java.awt.Frame.<init>(Frame.java:403)
at java.awt.Frame.<init>(Frame.java:368)
at javax.swing.JFrame.<init>(JFrame.java:158)
at D3D.<init>(D3D.java:35)
at player.<init>(player.java:1)
at D3D.<init>(D3D.java:17)
at player.<init>(player.java:1)
这是玩家类:
public class player extends D3D
{
int playerX, playerY;
boolean east, west, south, north;
public void setPlayer()
{
playerX = 1; playerY = 1;
east=true; west=false; north=false; south=false;
}
}
这是D3D类:
public class D3D extends JFrame
{
player player = new player();
mapgeneration levelmap = new mapgeneration();
boolean ONE, TWO, THREE, FOUR, FIVE;
boolean ONEhighlight,TWOhighlight,THREEhighlight,FOURhighlight,FIVEhighlight;
Timer timer = new Timer(250,new ActionListener() {
public void actionPerformed(ActionEvent evt) {
repaint();
}
});
String tracer;
Image Example = Toolkit.getDefaultToolkit().getImage("images/example.png");
Image Startup = Toolkit.getDefaultToolkit().getImage("images/Startup.png");
Image ButtonHighlight = Toolkit.getDefaultToolkit().getImage("images/ButtonHighlight.png");
public D3D()
{
super();
setSize(342,277);
...
JPanel main = new JPanel()
{
public void paintComponent(final Graphics g)
{
super.paintComponent(g);
timer.start();
g.drawImage(Startup,0,0,this);
...
};
};
add(main);
}
public void init()
{
player.setPlayer();
levelmap.populateGraph();
}
public static void main(String[] args)
{
D3D game = new D3D();
game.setTitle("Dungens:3D");
game.init();
game.setVisible(true);
}
}
我已经看了几个小时,并把它缩小到你在这里看到的.说实话,我可能会看到一些愚蠢的小东西.
多谢你们.
解决方法:
我看到你的问题.您的Player类扩展了您的D3D GUI – 导致一种疯狂的循环引用.当您循环地继续创建玩家和D3D对象时,这将导致递归.
为了证明我是对的,只需运行这个非常简单的代码版本:
public class D3D {
Player player = new Player();
public static void main(String[] args) {
D3D game = new D3D();
}
}
class Player extends D3D {
}
因此,当创建D3D对象时,它会创建一个Player对象,并且由于它扩展了D3D,它会创建另一个Player对象,因为它是一个D3D对象,所以创建另一个Player对象,然后依次打开.
但即使它没有引起递归,玩家也不应该扩展GUI,因为玩家不是gui;它们是完全不同的逻辑结构.
标签:java,stack-overflow 来源: https://codeday.me/bug/20190903/1797471.html