我在 JFrame.setContentPane 上有一个超出范围的索引答案

【问题标题】：I have an index out of bound excetion on JFrame.setContentPane我在 JFrame.setContentPane 上有一个超出范围的索引
【发布时间】：2015-05-13 01:15:43
【问题描述】：

这一行：

this.setContentPane(panelLoading);

给我这个错误：

Exception in thread "AWT-EventQueue-0"
java.lang.IndexOutOfBoundsException: Index: 1, Size: 1
at java.util.ArrayList.rangeCheck(Unknown Source)
at java.util.ArrayList.remove(Unknown Source)
at java.awt.Container.remove(Unknown Source)
at javax.swing.JLayeredPane.remove(Unknown Source)
at java.awt.Container.remove(Unknown Source)
at javax.swing.JRootPane.setContentPane(Unknown Source)
at javax.swing.JFrame.setContentPane(Unknown Source)
at IHM.FenPrincipale.chargement(FenPrincipale.java:291)
at IHM.FenPrincipale.setServeur(FenPrincipale.java:175)
at IHM.PanelMenuPrincipal.actionPerformed(PanelMenuPrincipal.java:174)
at javax.swing.JComboBox.fireActionEvent(Unknown Source)
at javax.swing.JComboBox.setSelectedItem(Unknown Source)
at javax.swing.JComboBox.setSelectedIndex(Unknown Source)
at javax.swing.plaf.basic.BasicComboPopup$Handler.mouseReleased(Unknown Source)
at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at javax.swing.plaf.basic.BasicComboPopup$1.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$200(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

仅当从 JComboBox（ActionListener 或 ItemListener）上的事件调用该函数时，此错误才会在使用我的函数设置我的数据库后出现在下一个 setContentPane 上。

public void actionPerformed(ActionEvent e) {
    if(e.getSource()==boutonJouer){
        fen.setServeur(serveur.getSelectedItem().toString());//The bug doesn't appear
    }else if(e.getSource()==serveur){
        fen.setServeur(serveur.getSelectedItem().toString());//The bug appear
    }
}

boutonJouer 是一个 JButton，serverur 是一个 JComboBox。请帮帮我。

PS：对不起我的英语

【问题讨论】：

考虑提供一个runnable example 来证明您的问题。这不是代码转储，而是您正在做的事情的一个例子，它突出了您遇到的问题。这将导致更少的混乱和更好的响应
您确实应该避免使用setContentPane 来切换视图，要么简单地使用新数据更新现有视图，要么在需要时使用CardLayout 在视图之间切换
感谢 CardLayout，使用此解决方案不会出现错误，但我的 JComboBox 显示在 panelLoading 中，我该如何解决这个错误？

标签： java swing jframe jpanel indexoutofboundsexception

【解决方案1】：

感谢 MadProgrammer 的 CardLayout，我终于找到了解决方案：在调用函数之前使用 CardLayout 并删除 JcomboBox 并在之后添加她。

remove(serveur); //Remove the JComboBox
fen.setServeur(serveur.getSelectedItem().toString()); //Call the function
add(serveur); //Then add the JCombpBox

它有效。感谢您的帮助。

【讨论】：