我正在尝试制作一些有趣的东西，并且在我按下 gui 中的“确定”按钮后，我的组件不断消失。
我正在尝试制作一个“猜一个词”程序，其中一个人会得到一个小费，然后你可以输入一个猜测，如果它匹配它会给你一个消息，如果不是，另一个提示。问题是，如果你输入的不是这个词，它会给你一个信息，它不是正确的词，然后它会给你另一个提示。但另一个提示不会出现。他们消失了。
我有两个课程，“StartUp”和“QuizLogic”。问题出现在“showTips”方法的某个地方（我认为）。
如果有人自己尝试，可以在此处找到该文件的链接：链接到文件
谢谢你。
public class StartUp {
private JFrame frame;
private JButton showRulesYesButton;
private JButton showRulesNoButton;
private JButton checkButton;
private JPanel mainBackgroundManager;
private JTextField guessEntery;
private QuizLogic quizLogic;
private ArrayList<String> tips;
private JLabel firstTipLabel;
private JLabel secondTipLabel;
private JLabel thirdTipLabel;
// CONSTRUCTOR
public StartUp() {
// Show "Start Up" message
JOptionPane.showMessageDialog(null, "Guess a Word!");
showRules();
}
// METHODS
public void showRules() {
// Basic frame methods
frame = new JFrame("Rules");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(new Dimension(500, 500));
frame.setLocationRelativeTo(null);
// Creates JLabels and adds to JPanel
JLabel firstRule = new JLabel("1. You will get one tip at a time of what the word could be.");
JLabel secoundRule = new JLabel("2. You will get three tips and unlimited guesses.");
JLabel thirdRule = new JLabel("3. Every word is a noun and in its basic form.");
JLabel understand = new JLabel("Are you ready?");
// Creates JPanel and adds JLabels to JPanel
JPanel temporaryRulesPanel = new JPanel(new FlowLayout(FlowLayout.CENTER, 100, 60));
temporaryRulesPanel.add(firstRule);
temporaryRulesPanel.add(secoundRule);
temporaryRulesPanel.add(thirdRule);
temporaryRulesPanel.add(understand);
// Initialize buttons
showRulesYesButton = new JButton("Yes");
showRulesNoButton = new JButton("No");
showRulesYesButton.addActionListener(new StartUpEventHandler());
showRulesNoButton.addActionListener(new StartUpEventHandler());
// Creates JPanel and adds button to JPanel
JPanel temporaryButtonPanel = new JPanel(new FlowLayout(FlowLayout.CENTER, 100, 35));
temporaryButtonPanel.add(showRulesYesButton);
temporaryButtonPanel.add(showRulesNoButton);
// Initialize and adds JPanel to JPanel
mainBackgroundManager = new JPanel(new BorderLayout());
mainBackgroundManager.add(temporaryRulesPanel, BorderLayout.CENTER);
mainBackgroundManager.add(temporaryButtonPanel, BorderLayout.SOUTH);
//Adds JPanel to JFrame
frame.add(mainBackgroundManager);
frame.setVisible(true);
}
public void clearBackground() {
mainBackgroundManager.removeAll();
quizLogic = new QuizLogic();
showGuessFrame();
showTips();
}
public void showGuessFrame() {
JPanel guessPanel = new JPanel(new FlowLayout(FlowLayout.CENTER, 50, 10));
firstTipLabel = new JLabel("a");
secondTipLabel = new JLabel("b");
thirdTipLabel = new JLabel("c");
tips = new ArrayList<String>();
guessEntery = new JTextField("Enter guess here", 20);
checkButton = new JButton("Ok");
checkButton.addActionListener(new StartUpEventHandler());
guessPanel.add(guessEntery);
guessPanel.add(checkButton);
mainBackgroundManager.add(guessPanel, BorderLayout.SOUTH);
frame.add(mainBackgroundManager);
}
public void showTips() {
JPanel temporaryTipsPanel = new JPanel(new GridLayout(3, 1));
temporaryTipsPanel.removeAll();
tips.add(quizLogic.getTip());
System.out.println(tips.size());
if (tips.size() == 1) {
firstTipLabel.setText(tips.get(0));
}
if (tips.size() == 2) {
secondTipLabel.setText(tips.get(1));
}
if (tips.size() == 3) {
thirdTipLabel.setText(tips.get(2));
}
temporaryTipsPanel.add(firstTipLabel);
temporaryTipsPanel.add(secondTipLabel);
temporaryTipsPanel.add(thirdTipLabel);
mainBackgroundManager.add(temporaryTipsPanel, BorderLayout.CENTER);
frame.add(mainBackgroundManager);
frame.revalidate();
frame.repaint();
}
public void getGuess() {
String temp = guessEntery.getText();
boolean correctAnswer = quizLogic.checkGuess(guessEntery.getText());
if (correctAnswer == true) {
JOptionPane.showMessageDialog(null, "Good Job! The word was " + temp);
}
else {
JOptionPane.showMessageDialog(null, temp + " is not the word we are looking for");
showTips();
}
}
private class StartUpEventHandler implements ActionListener {
public void actionPerformed(ActionEvent event) {
if (event.getSource() == showRulesYesButton) {
clearBackground();
}
else if (event.getSource() == showRulesNoButton) {
JOptionPane.showMessageDialog(null, "Read the rules again");
}
else if (event.getSource() == checkButton) {
getGuess();
}
}
}
}
public class QuizLogic {
private ArrayList<String> quizWord;
private ArrayList<String> tipsList;
private int tipsNumber;
private String word;
public QuizLogic() {
tipsNumber = 0;
quizWord = new ArrayList<String>();
quizWord.add("Burger");
try {
loadTips(getWord());
} catch (Exception e) {
System.out.println(e);
}
}
public String getWord() {
Random randomGen = new Random();
return quizWord.get(randomGen.nextInt(quizWord.size()));
}
public void loadTips(String word) throws FileNotFoundException {
Scanner lineScanner = new Scanner(new File("C:\\Users\\Oliver Nielsen\\Dropbox\\EclipseWorkspaces\\BuildingJava\\GuessAWord\\src\\domain\\" + word + ".txt"));
this.word = word;
tipsList = new ArrayList<String>();
while (lineScanner.hasNext()) {
tipsList.add(lineScanner.nextLine());
}
}
public String getTip() {
if (tipsNumber >= tipsList.size()) {
throw new NoSuchElementException();
}
String temp = tipsList.get(tipsNumber);
tipsNumber++;
System.out.println(temp);
return temp;
}
public boolean checkGuess(String guess) {
return guess.equalsIgnoreCase(word);
}
}