问题描述
线程中的异常AWT-EventQueue-0java.lang.RuntimeException：JOptionPane：type必须是JOptionPane.ERROR_MESSAGE，JOptionPane.INFORMATION_MESSAGE，JOptionPane.WARNING_MESSAGE，JOptionPane.QUESTION_MESSAGE或JOptionPane.PLAIN_MESSAGE
之一b $ b at javax.swing.JOptionPane.setMessageType（JOptionPane.java:2083）
at javax.swing.JOptionPane。< init>（JOptionPane.java:1842)
at javax.swing.JOptionPane.showOptionDialog（JOptionPane.java:858）
at javax.swing.JOptionPane.showMessageDialog（JOptionPane.java:667)
at javax在。Choice.access $ 100（Choice.java： 23）
在Choice $ 2.actionPerformed（Choice.java:71）
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。 plaf.basic.BasicButtonListener.mouseReleased（BasicButtonListener.java:252）
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（本机方法）
java.security.Protect上的
ionDomain $ 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）
在java.awt.EventDispatchThread.run（EventDispatchThread.java:91）
Exception in thread "AWT-EventQueue-0" java.lang.RuntimeException: JOptionPane: type must be one of JOptionPane.ERROR_MESSAGE, JOptionPane.INFORMATION_MESSAGE, JOptionPane.WARNING_MESSAGE, JOptionPane.QUESTION_MESSAGE or JOptionPane.PLAIN_MESSAGE
at javax.swing.JOptionPane.setMessageType(JOptionPane.java:2083)
at javax.swing.JOptionPane.<init>(JOptionPane.java:1842)
at javax.swing.JOptionPane.showOptionDialog(JOptionPane.java:858)
at javax.swing.JOptionPane.showMessageDialog(JOptionPane.java:667)
at javax.swing.JOptionPane.showMessageDialog(JOptionPane.java:638)
at Choice.btnmathActionPerformed(Choice.java:255)
at Choice.access$100(Choice.java:23)
at Choice$2.actionPerformed(Choice.java:71)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
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)
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