Java Swing GUI代码更改没有任何区别

我正在为一个带有Swing的扑克游戏制作GUI，我正在为按钮编写动作监听器，我最初为Check按钮编写了一个动作监听器，SYSOUTs“button listener Works”只是为了检查它是否工作

我已经修改了这段代码，编写了一些合适的侦听器，并且通过某种魔法，呈现的GUI仍然引用了sysout。。。在下面的代码中，我对“检查”按钮的侦听器进行了深入研究，并添加了一个用于调用的按钮，但不知何故忽略了此更改

我甚至完全删除了action listener，保存了所有内容，但它仍然写出了这个幻影代码

此外，ButtonBar中的JComboBox不会显示

TLDR无论我对GUI的代码做什么，它都会显示旧代码的结果

请有人救我

public class ButtonBar extends JPanel {

 public ButtonBar() {
  setBorder(BorderFactory.createTitledBorder("Moves:"));
  JButton checkButton = new JButton("Check");
  JButton callButton = new JButton("Call");
  JButton raiseButton = new JButton("Raise");
  JButton foldButton = new JButton("Fold");
  JLabel selectPlayStyle = new JLabel("Select opponent play style");

  callButton.addActionListener(e -> System.out.println("Sherbert Lemon"));

  //create the comboBox
  String[] playStyleStrings = {
   "Tight Aggressive",
   "Tight Passive",
   "Loose Aggressive",
   "Loose Passive"
  };
  JComboBox < String > playStyleList = new JComboBox < String > (playStyleStrings);
  playStyleList.setSelectedIndex(0);
  playStyleList.addActionListener(e -> System.out.println("none"));

  //DELETE THIS

  setLayout(new GridBagLayout());

  /*this is a class where you can establish where all of your Swing bits and bobs will go.*/
  GridBagConstraints gc = new GridBagConstraints();

  //These show you how much space is allocated to each row
  gc.weightx = 0.2;
  gc.weighty = 0.2;

  //moves button column - all the JLabels
  gc.gridx = 0;
  add(checkButton, gc);

  gc.gridx = 1;
  add(callButton, gc);

  gc.gridx = 2;
  add(raiseButton, gc);

  gc.gridx = 3;
  add(foldButton, gc);

  gc.gridx = 4;
  add(selectPlayStyle, gc);

  gc.gridx = 5;
  add(playStyleList, gc);
 }
}

大型机

---

它显示了旧代码的结果……我甚至完全删除了action listener，保存了所有内容，但它仍然写出了这个虚拟代码

你的意思是删除、保存和编译吗？在一位同行的建议下，我使用了eclipse clean函数并重新构建了项目。但现在我得到的只是“错误：找不到或加载主类GUI.App”在您的项目中有主方法吗？听起来你的项目配置说你的main不在某个地方。

它显示了旧代码的结果…我甚至完全删除了action listener，保存了所有内容，但它仍然写出了这个虚拟代码

你的意思是删除，保存，在一位同行的建议下，我使用了eclipseclean函数并再次构建了该项目。但现在我得到的只是“错误：找不到或加载主类GUI.App”在您的项目中有主方法吗？听起来好像你的项目配置说你的主站在它不在的地方。

public class App {

 public static void main(String[] args) {
  /*Swing likes to manage it's own thread so this allows it to do so.
  This creates a Swing Thread and runs the method inside of it for you */
  SwingUtilities.invokeLater(new Runnable() {
   public void run() {
    //main window for the application to load into
    JFrame frame = new MainFrame("Tren Poker Systems");
    frame.setSize(1000, 600);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setVisible(true);
   }
  });
  GameManager gm = new GameManager();
 }
}

public class MainFrame extends JFrame {

 private OddsPanel oddsPanel;
 private CardsPanel cardsPanel;
 private ButtonBar buttonBar;
 private static JTextArea gameInfoArea;

 public MainFrame(String title) {
  super(title);

  //Create Swing components.
  gameInfoArea = new JTextArea("Game information will be found here: ");
  oddsPanel = new OddsPanel();
  cardsPanel = new CardsPanel();
  buttonBar = new ButtonBar();

  //Set layout manager.
  setLayout(new BorderLayout());

  Container container = getContentPane();
  container.add(gameInfoArea, BorderLayout.CENTER);
  container.add(oddsPanel, BorderLayout.WEST);
  container.add(cardsPanel, BorderLayout.EAST);
  container.add(buttonBar, BorderLayout.SOUTH);
 }

 public static void addToGamePane(String information) {
  gameInfoArea.append(information + "\n");
 }
}