(edit)此问题已解决-参见答案。
我遇到了Java/Swing和Netbeans的不幸问题，我以前从未见过。我在Netbeans中设计了一个基本的卡牌游戏表单，它似乎工作得很好。下图:https://i.stack.imgur.com/IcZ7F.png
注意左下角的导航器视图，它清楚地列出了底部面板中的所有组件。
当我真正运行游戏时，第一眼看起来很好……https://i.stack.imgur.com/SNKK8.png
…但是当您最大化窗口时，您突然无缘无故地看到面板内容的副本。https://i.stack.imgur.com/y0LhY.png
这种重叠不仅令人困惑，还会导致按钮事件指向错误的组件，使游戏完全无法玩。默认情况下，显示正确的聊天文本区域，但是当您单击它进行聚焦时，它会突然将空白文本区域也带到前面，有效地隐藏了聊天文本区域。这个问题也影响到顶部面板，有假的jlabel副本，应该没有文本(见右侧)。
是什么原因造成的，如何解决?我在导航器中找不到面板的副本，清理和构建不起作用，甚至自动生成的代码也没有显示任何向窗口添加两个文本区域的提示。
非常感谢帮助!
下面是相关的自动生成initComponents代码。我从来没有碰过这段代码，因为它是由Netbeans自动生成的。// Variables declaration - do not modify
private javax.swing.JLabel bC1;
private javax.swing.JLabel bC2;
private javax.swing.JLabel bC3;
private javax.swing.JLabel bC4;
private javax.swing.JLabel bC5;
private javax.swing.JLabel bC6;
private javax.swing.JLabel bC7;
private javax.swing.JSpinner betSpinner;
private javax.swing.JButton btnBet;
private javax.swing.JButton btnPass;
private javax.swing.JPanel gamePanel;
private javax.swing.JButton jButton1;
private javax.swing.JLabel jLabel1;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTextField jTextField1;
private javax.swing.JLabel lC1;
private javax.swing.JLabel lC2;
private javax.swing.JLabel lC3;
private javax.swing.JLabel lC4;
private javax.swing.JLabel lC5;
private javax.swing.JLabel lC6;
private javax.swing.JLabel lC7;
private javax.swing.JPanel playingField;
private javax.swing.JPanel plrBottom;
private javax.swing.JPanel plrLeft;
private javax.swing.JPanel plrRight;
private javax.swing.JPanel plrTop;
private javax.swing.JLabel rC1;
private javax.swing.JLabel rC2;
private javax.swing.JLabel rC3;
private javax.swing.JLabel rC4;
private javax.swing.JLabel rC5;
private javax.swing.JLabel rC6;
private javax.swing.JLabel rC7;
private javax.swing.JPanel statusPanel;
private javax.swing.JLabel tC1;
private javax.swing.JLabel tC2;
private javax.swing.JLabel tC3;
private javax.swing.JLabel tC4;
private javax.swing.JLabel tC5;
private javax.swing.JLabel tC6;
private javax.swing.JLabel tC7;
private javax.swing.JTextArea textAreaChat;
// End of variables declaration
private void initComponents() {
statusPanel = new javax.swing.JPanel();
jScrollPane1 = new javax.swing.JScrollPane();
textAreaChat = new javax.swing.JTextArea();
jTextField1 = new javax.swing.JTextField();
jButton1 = new javax.swing.JButton();
jLabel1 = new javax.swing.JLabel();
betSpinner = new javax.swing.JSpinner();
btnBet = new javax.swing.JButton();
btnPass = new javax.swing.JButton();
gamePanel = new javax.swing.JPanel();
plrRight = new javax.swing.JPanel();
rC1 = new javax.swing.JLabel();
rC2 = new javax.swing.JLabel();
rC3 = new javax.swing.JLabel();
rC4 = new javax.swing.JLabel();
rC5 = new javax.swing.JLabel();
rC6 = new javax.swing.JLabel();
rC7 = new javax.swing.JLabel();
plrBottom = new javax.swing.JPanel();
bC1 = new javax.swing.JLabel();
bC2 = new javax.swing.JLabel();
bC3 = new javax.swing.JLabel();
bC4 = new javax.swing.JLabel();
bC5 = new javax.swing.JLabel();
bC6 = new javax.swing.JLabel();
bC7 = new javax.swing.JLabel();
plrLeft = new javax.swing.JPanel();
lC1 = new javax.swing.JLabel();
lC2 = new javax.swing.JLabel();
lC3 = new javax.swing.JLabel();
lC4 = new javax.swing.JLabel();
lC5 = new javax.swing.JLabel();
lC6 = new javax.swing.JLabel();
lC7 = new javax.swing.JLabel();
plrTop = new javax.swing.JPanel();
tC1 = new javax.swing.JLabel();
tC2 = new javax.swing.JLabel();
tC3 = new javax.swing.JLabel();
tC4 = new javax.swing.JLabel();
tC5 = new javax.swing.JLabel();
tC6 = new javax.swing.JLabel();
tC7 = new javax.swing.JLabel();
playingField = new javax.swing.JPanel();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
statusPanel.setPreferredSize(new java.awt.Dimension(0, 180));
textAreaChat.setEditable(false);
textAreaChat.setColumns(20);
textAreaChat.setRows(5);
jScrollPane1.setViewportView(textAreaChat);
jButton1.setText("Send");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});
jLabel1.setText("Betting");
btnBet.setText("Bet");
btnBet.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnBetActionPerformed(evt);
}
});
btnPass.setText("Pass");
btnPass.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnPassActionPerformed(evt);
}
});
javax.swing.GroupLayout statusPanelLayout = new javax.swing.GroupLayout(statusPanel);
statusPanel.setLayout(statusPanelLayout);
statusPanelLayout.setHorizontalGroup(
statusPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(statusPanelLayout.createSequentialGroup()
.addContainerGap()
.addGroup(statusPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(statusPanelLayout.createSequentialGroup()
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 308, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 73, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addGroup(statusPanelLayout.createSequentialGroup()
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 389, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(statusPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(statusPanelLayout.createSequentialGroup()
.addComponent(jLabel1)
.addGap(0, 0, Short.MAX_VALUE))
.addGroup(statusPanelLayout.createSequentialGroup()
.addGroup(statusPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(btnBet, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(betSpinner, javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(btnPass, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addContainerGap())))))
);
statusPanelLayout.setVerticalGroup(
statusPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(statusPanelLayout.createSequentialGroup()
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addGroup(statusPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(statusPanelLayout.createSequentialGroup()
.addComponent(jLabel1)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(betSpinner, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(btnBet)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(btnPass))
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 115, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18, 18, 18)
.addGroup(statusPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jButton1))
.addGap(27, 27, 27))
);
getContentPane().add(statusPanel, java.awt.BorderLayout.PAGE_END);
gamePanel.setLayout(new java.awt.BorderLayout());
rC1.setText("jLabel1");
rC1.setMaximumSize(new java.awt.Dimension(14, 34));
rC1.setMinimumSize(new java.awt.Dimension(14, 34));
rC1.setPreferredSize(new java.awt.Dimension(14, 34));
rC2.setText("jLabel1");
rC2.setMaximumSize(new java.awt.Dimension(14, 34));
rC2.setMinimumSize(new java.awt.Dimension(14, 34));
rC2.setPreferredSize(new java.awt.Dimension(14, 34));
rC3.setText("jLabel1");
rC3.setMaximumSize(new java.awt.Dimension(14, 34));
rC3.setMinimumSize(new java.awt.Dimension(14, 34));
rC3.setPreferredSize(new java.awt.Dimension(14, 34));
rC4.setText("jLabel1");
rC4.setMaximumSize(new java.awt.Dimension(14, 34));
rC4.setMinimumSize(new java.awt.Dimension(14, 34));
rC4.setPreferredSize(new java.awt.Dimension(14, 34));
rC5.setText("jLabel1");
rC5.setMaximumSize(new java.awt.Dimension(14, 34));
rC5.setMinimumSize(new java.awt.Dimension(14, 34));
rC5.setPreferredSize(new java.awt.Dimension(14, 34));
rC6.setText("jLabel1");
rC6.setMaximumSize(new java.awt.Dimension(14, 34));
rC6.setMinimumSize(new java.awt.Dimension(14, 34));
rC6.setPreferredSize(new java.awt.Dimension(14, 34));
rC7.setText("jLabel1");
rC7.setMaximumSize(new java.awt.Dimension(14, 34));
rC7.setMinimumSize(new java.awt.Dimension(14, 34));
rC7.setPreferredSize(new java.awt.Dimension(14, 34));
javax.swing.GroupLayout plrRightLayout = new javax.swing.GroupLayout(plrRight);
plrRight.setLayout(plrRightLayout);
plrRightLayout.setHorizontalGroup(
plrRightLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(plrRightLayout.createSequentialGroup()
.addGroup(plrRightLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(rC1, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(rC2, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(rC3, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(rC4, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(rC5, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(rC6, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(rC7, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE))
.addContainerGap())
);
plrRightLayout.setVerticalGroup(
plrRightLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(plrRightLayout.createSequentialGroup()
.addGap(5, 5, 5)
.addComponent(rC1, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(rC2, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(rC3, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(rC4, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(rC5, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(rC6, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(rC7, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
gamePanel.add(plrRight, java.awt.BorderLayout.LINE_END);
bC1.setText("jLabel1");
bC2.setText("jLabel1");
bC3.setText("jLabel1");
bC4.setText("jLabel1");
bC5.setText("jLabel1");
bC6.setText("jLabel1");
bC7.setText("jLabel1");
javax.swing.GroupLayout plrBottomLayout = new javax.swing.GroupLayout(plrBottom);
plrBottom.setLayout(plrBottomLayout);
plrBottomLayout.setHorizontalGroup(
plrBottomLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(plrBottomLayout.createSequentialGroup()
.addGap(36, 36, 36)
.addComponent(bC1, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(bC2, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(bC3, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(bC4, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(bC5, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(bC6, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(bC7, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
plrBottomLayout.setVerticalGroup(
plrBottomLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(plrBottomLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(bC1, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(bC2, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(bC3, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(bC4, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(bC5, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(bC6, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(bC7, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE))
);
gamePanel.add(plrBottom, java.awt.BorderLayout.PAGE_END);
lC1.setText("jLabel1");
lC1.setMaximumSize(new java.awt.Dimension(14, 34));
lC1.setMinimumSize(new java.awt.Dimension(14, 34));
lC1.setPreferredSize(new java.awt.Dimension(14, 34));
lC2.setText("jLabel1");
lC2.setMaximumSize(new java.awt.Dimension(14, 34));
lC2.setMinimumSize(new java.awt.Dimension(14, 34));
lC2.setPreferredSize(new java.awt.Dimension(14, 34));
lC3.setText("jLabel1");
lC3.setMaximumSize(new java.awt.Dimension(14, 34));
lC3.setMinimumSize(new java.awt.Dimension(14, 34));
lC3.setPreferredSize(new java.awt.Dimension(14, 34));
lC4.setText("jLabel1");
lC4.setMaximumSize(new java.awt.Dimension(14, 34));
lC4.setMinimumSize(new java.awt.Dimension(14, 34));
lC4.setPreferredSize(new java.awt.Dimension(14, 34));
lC5.setText("jLabel1");
lC5.setMaximumSize(new java.awt.Dimension(14, 34));
lC5.setMinimumSize(new java.awt.Dimension(14, 34));
lC5.setPreferredSize(new java.awt.Dimension(14, 34));
lC6.setText("jLabel1");
lC6.setMaximumSize(new java.awt.Dimension(14, 34));
lC6.setMinimumSize(new java.awt.Dimension(14, 34));
lC6.setPreferredSize(new java.awt.Dimension(14, 34));
lC7.setText("jLabel1");
lC7.setMaximumSize(new java.awt.Dimension(14, 34));
lC7.setMinimumSize(new java.awt.Dimension(14, 34));
lC7.setPreferredSize(new java.awt.Dimension(14, 34));
javax.swing.GroupLayout plrLeftLayout = new javax.swing.GroupLayout(plrLeft);
plrLeft.setLayout(plrLeftLayout);
plrLeftLayout.setHorizontalGroup(
plrLeftLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(plrLeftLayout.createSequentialGroup()
.addGroup(plrLeftLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(lC1, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(lC2, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(lC3, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(lC4, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(lC5, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(lC6, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(lC7, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE))
.addContainerGap())
);
plrLeftLayout.setVerticalGroup(
plrLeftLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(plrLeftLayout.createSequentialGroup()
.addGap(5, 5, 5)
.addComponent(lC1, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(lC2, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(lC3, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(lC4, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(lC5, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(lC6, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(lC7, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
gamePanel.add(plrLeft, java.awt.BorderLayout.LINE_START);
tC1.setText("jLabel1");
tC2.setText("jLabel1");
tC3.setText("jLabel1");
tC4.setText("jLabel1");
tC5.setText("jLabel1");
tC6.setText("jLabel1");
tC7.setText("jLabel1");
javax.swing.GroupLayout plrTopLayout = new javax.swing.GroupLayout(plrTop);
plrTop.setLayout(plrTopLayout);
plrTopLayout.setHorizontalGroup(
plrTopLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(plrTopLayout.createSequentialGroup()
.addGap(37, 37, 37)
.addComponent(tC1, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(tC2, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(tC3, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(tC4, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(tC5, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(tC6, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(tC7, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
plrTopLayout.setVerticalGroup(
plrTopLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(plrTopLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(tC1, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(tC2, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(tC3, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(tC4, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(tC5, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(tC6, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(tC7, javax.swing.GroupLayout.PREFERRED_SIZE, 89, javax.swing.GroupLayout.PREFERRED_SIZE))
);
gamePanel.add(plrTop, java.awt.BorderLayout.PAGE_START);
javax.swing.GroupLayout playingFieldLayout = new javax.swing.GroupLayout(playingField);
playingField.setLayout(playingFieldLayout);
playingFieldLayout.setHorizontalGroup(
playingFieldLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 0, Short.MAX_VALUE)
);
playingFieldLayout.setVerticalGroup(
playingFieldLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 0, Short.MAX_VALUE)
);
gamePanel.add(playingField, java.awt.BorderLayout.CENTER);
getContentPane().add(gamePanel, java.awt.BorderLayout.CENTER);
pack();
}// </editor-fold>
我已经找到并解决了这个问题;在构造函数的混乱中，initComponents()被调用了两次。我深感惭愧。