Java 从不同类添加到框架的SWING组件
我试图在调用类时显示GUI组件。例如,若我单击一个菜单项,它将打开一个面板,其中填充了该类的组件 这是我的代码:(只是if语句的第一部分……其他带有printfs的都是相同的概念,只是不同的类Java 从不同类添加到框架的SWING组件,java,swing,Java,Swing,我试图在调用类时显示GUI组件。例如,若我单击一个菜单项,它将打开一个面板,其中填充了该类的组件 这是我的代码:(只是if语句的第一部分……其他带有printfs的都是相同的概念,只是不同的类 private class FileMenuAction implements ActionListener{ //overrides the defualt action. //then deals with the event from the action listene
private class FileMenuAction implements ActionListener{
//overrides the defualt action.
//then deals with the event from the action listener
@Override
public void actionPerformed(ActionEvent e){
if (e.getActionCommand().equals("Add Airport")){
AddAirport airport1 = new AddAirport(frame); <----creating an object of my class
}
else if (e.getActionCommand() == "Add Airline"){
System.out.println("Add Airline Clicked");
}
else if (e.getActionCommand() == "Add Flight"){
System.out.println("Add Flight Clicked");
}
else if (e.getActionCommand().equals("Exit")){
System.exit(0);
}
}
}
private class BookMenuAction implements ActionListener {
//overrides the defualt action.
//then deals with the event from the action listener
@Override
public void actionPerformed(ActionEvent e) {
if (e.getActionCommand().equals("Flight Reservation")){
System.out.println("Flight Reservation Clicked");
}
}
}
下面是错误:
Exception in thread "AWT-EventQueue-0" java.lang.IllegalArgumentException: adding a window to a container
at java.awt.Container.checkNotAWindow(Container.java:483)
at java.awt.Container.addImpl(Container.java:1084)
at java.awt.Container.add(Container.java:410)
at UserInterface.AddAirport.initcomp(AddAirport.java:23)
at UserInterface.AddAirport.<init>(AddAirport.java:16)
at UserInterface.AirlineReservation$FileMenuAction.actionPerformed(AirlineReservation.java:109)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.AbstractButton.doClick(AbstractButton.java:376)
at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:833)
at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:877)
at java.awt.Component.processMouseEvent(Component.java:6505)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3320)
at java.awt.Component.processEvent(Component.java:6270)
at java.awt.Container.processEvent(Container.java:2229)
at java.awt.Component.dispatchEventImpl(Component.java:4861)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
at java.awt.Container.dispatchEventImpl(Container.java:2273)
at java.awt.Window.dispatchEventImpl(Window.java:2719)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:694)
at java.awt.EventQueue$3.run(EventQueue.java:692)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.awt.EventQueue$4.run(EventQueue.java:708)
at java.awt.EventQueue$4.run(EventQueue.java:706)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:705)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
BUILD SUCCESSFUL (total time: 4 seconds)
线程“AWT-EventQueue-0”java.lang.IllegalArgumentException中的异常:向容器添加窗口
在java.awt.Container.checkNotAWindow(Container.java:483)
位于java.awt.Container.addImpl(Container.java:1084)
在java.awt.Container.add处(Container.java:410)
位于UserInterface.AddAirport.initcomp(AddAirport.java:23)
在UserInterface.AddAirport.(AddAirport.java:16)
在UserInterface.AirlineReservation$FileMenuAction.actionPerformed处(AirlineReservation.java:109)
在javax.swing.AbstractButton.fireActionPerformed上(AbstractButton.java:2018)
位于javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
在javax.swing.DefaultButtonModel.fireActionPerformed上(DefaultButtonModel.java:402)
在javax.swing.DefaultButtonModel.setPressed中(DefaultButtonModel.java:259)
位于javax.swing.AbstractButton.doClick(AbstractButton.java:376)
位于javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:833)
位于javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:877)
位于java.awt.Component.ProcessMouseeEvent(Component.java:6505)
位于javax.swing.JComponent.ProcessMouseeEvent(JComponent.java:3320)
位于java.awt.Component.processEvent(Component.java:6270)
位于java.awt.Container.processEvent(Container.java:2229)
位于java.awt.Component.dispatchEventImpl(Component.java:4861)
位于java.awt.Container.dispatchEventImpl(Container.java:2287)
位于java.awt.Component.dispatchEvent(Component.java:4687)
位于java.awt.LightweightDispatcher.RetargetMouseeEvent(Container.java:4832)
位于java.awt.LightweightDispatcher.ProcessMouseeEvent(Container.java:4492)
位于java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
位于java.awt.Container.dispatchEventImpl(Container.java:2273)
位于java.awt.Window.dispatchEventImpl(Window.java:2719)
位于java.awt.Component.dispatchEvent(Component.java:4687)
位于java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735)
在java.awt.EventQueue.access$200(EventQueue.java:103)
位于java.awt.EventQueue$3.run(EventQueue.java:694)
在java.awt.EventQueue$3.run(EventQueue.java:692)
位于java.security.AccessController.doPrivileged(本机方法)
位于java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
位于java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
在java.awt.EventQueue$4.run(EventQueue.java:708)
在java.awt.EventQueue$4.run(EventQueue.java:706)
位于java.security.AccessController.doPrivileged(本机方法)
位于java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
位于java.awt.EventQueue.dispatchEvent(EventQueue.java:705)
位于java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
在java.awt.EventDispatchThread.PumpeEventsforFilter(EventDispatchThread.java:161)
位于java.awt.EventDispatchThread.PumpeEventsforHierarchy(EventDispatchThread.java:150)
位于java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
位于java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
在java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
生成成功(总时间:4秒)
我走对了吗?我的意思是我有一个运行时错误,但是我很接近了那么异常情况呢?你不明白吗
java.lang.IllegalArgumentException:向容器添加窗口
public void initcomp(JFrame parent){
JPanel panel = new JPanel();
JLabel label1 = new JLabel("hekllo");
label1.add(panel);
panel.add(parent);
您正试图将
JFrame
添加到JPanel
。这不起作用。您还试图将面板添加到标签中。这是您真正想要的吗?看起来您的操作是反向的。您可能想将标签添加到面板中,将面板添加到框架中。您不明白例外情况是什么吗
java.lang.IllegalArgumentException:向容器添加窗口
public void initcomp(JFrame parent){
JPanel panel = new JPanel();
JLabel label1 = new JLabel("hekllo");
label1.add(panel);
panel.add(parent);
您试图将JFrame
添加到JPanel
中。这不起作用。您还试图将面板添加到标签中。这就是您真正想要的。看起来您的操作是向后的。您可能想将标签添加到面板中,将面板添加到框架中
线程“AWT-EventQueue-0”java.lang.IllegalArgumentException中的异常:向容器添加窗口
错误消息会准确地告诉您出了什么问题。您正在尝试将某种类型的窗口
添加到某种类型的容器
如果您仔细查看您的AddAirport
类,您可以看到问题
public class AddAirport {
// Parent is a frame...
public AddAirport(JFrame parent){
initcomp(parent);
}
public void initcomp(JFrame parent){
JPanel panel = new JPanel();
JLabel label1 = new JLabel("hekllo");
label1.add(panel);
// Attempt to add the parent frame to the JPanel
// Can't be done...
panel.add(parent);
}
}
我不完全确定您想要实现什么,但我的第一个想法是将其翻转一些,您可以将面板
添加到父级
parent.add(panel);
但是没有足够的上下文来确定,最好使用某种类型的对话框
线程“AWT-EventQueue-0”java.lang.IllegalArgumentException中的异常:向容器添加窗口
错误消息会准确地告诉您出了什么问题。您正在尝试将某种类型的窗口
添加到某种类型的容器
如果您仔细查看您的AddAirport
类,您可以看到问题
public class AddAirport {
// Parent is a frame...
public AddAirport(JFrame parent){
initcomp(parent);
}
public void initcomp(JFrame parent){
JPanel panel = new JPanel();
JLabel label1 = new JLabel("hekllo");
label1.add(panel);
// Attempt to add the parent frame to the JPanel
// Can't be done...
panel.add(parent);
}
}
我不完全确定您想要实现什么,但我的第一个想法是将其翻转一些,您可以将面板
添加到父级
parent.add(panel);
但是没有足够的上下文来确定。使用某种对话框可能更好。是的,我刚刚交换了它,得到了它!谢谢大家!是的,我刚刚交换了它,得到了它!谢谢大家!