当我运行这个我制作的短程序时,我不断收到堆栈溢出错误!请帮忙!现在它应该做的就是获取用户输入并打印它们的位置(在X和Y坐标中)。我不确定Stack溢出错误是什么或如何解决它。
import java.awt.*;
import javax.swing.*;
public class ExplorerPanel extends JFrame {
ExplorerEvent prog = new ExplorerEvent(this);
JTextArea dataa = new JTextArea(15, 20);
JTextField datain = new JTextField(20);
JButton submit = new JButton("Submit");
JTextField errors = new JTextField(30);
public ExplorerPanel() {
super("Explorer RPG");
setLookAndFeel();
setSize(400, 400);
setDefaultCloseOperation(JFrame.EXIT_ON_…
BorderLayout bord = new BorderLayout();
setLayout(bord);
JPanel toppanel = new JPanel();
toppanel.add(dataa);
add(toppanel, BorderLayout.NORTH);
JPanel middlepanel = new JPanel();
middlepanel.add(datain);
middlepanel.add(submit);
add(middlepanel, BorderLayout.CENTER);
JPanel bottompanel = new JPanel();
bottompanel.add(errors);
add(bottompanel, BorderLayout.SOUTH);
dataa.setEditable(false);
errors.setEditable(false);
submit.addActionListener(prog);
setVisible(true);
}
private void setLookAndFeel() {
try {
UIManager.setLookAndFeel(
"com.sun.java.swing.plaf.nimbus.NimbusLo…
);
} catch (Exception exc) {
// ignore error
}
}
public static void main(String[] args) {
ExplorerPanel frame = new ExplorerPanel();
}
}
public class ExplorerEvent implements ActionListener, Runnable {
ExplorerPanel gui;
Thread playing;
String command;
String gamedata;
ExplorerGame game = new ExplorerGame();
public ExplorerEvent(ExplorerPanel in) {
gui = in;
}
public void actionPerformed(ActionEvent event) {
String command = event.getActionCommand();
if (command.equals("Submit")) {
startPlaying();
}
}
void startPlaying() {
playing = new Thread(this);
playing.start();
}
void stopPlaying() {
playing = (null);
}
void clearAllFields() {
gui.dataa.setText("");
}
public void run() {
Thread thisThread = Thread.currentThread();
while (playing == thisThread) {
// Game code
game.Game();
}
}
}
public class ExplorerGame {
ExplorerPanel gui = new ExplorerPanel();
String command;
int x = 1;
int y = 1;
public void Game() {
command = gui.submit.getText().toLowerCase();
if (command.equals("east")) {x--;}
else if (command.equals("south")) {y--;}
else if (command.equals("west")) {x++;}
else if (command.equals("north")) {y++;}
System.out.println(x + y);
}
}
答案 0 :(得分:6)
在 ExplorerGame 中,您已声明: -
ExplorerPanel gui = new ExplorerPanel();
然后,在 ExplorerPanel 中: -
ExplorerEvent prog = new ExplorerEvent(this);
然后再次在 ExplorerEvent 中: -
ExplorerGame game = new ExplorerGame();
这将通过递归创建对象来填充堆栈。
ExplorerGame -> ExplorerPanel -> ExplorerEvent --+
^ |
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您想解决问题吗? 我会建议你: -
cyclic dependency
是一个很大的循环漏洞,显示设计非常糟糕。