Exception in thread "main" java.lang.NoClassDefFoundError: default (wrong name: Default)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at sun.awt.FontConfiguration$2.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.awt.FontConfiguration.getFontCharsetEncoder(Unknown Source)
at sun.awt.FontConfiguration.buildFontDescriptors(Unknown Source)
at sun.awt.FontConfiguration.getFontDescriptors(Unknown Source)
at sun.awt.FontConfiguration.getFontDescriptors(Unknown Source)
at sun.awt.PlatformFont.(Unknown Source)
at sun.awt.windows.WFontPeer.(Unknown Source)
at sun.awt.windows.WToolkit.getFontPeer(Unknown Source)
at java.awt.Font.getPeer_NoClientCode(Unknown Source)
at java.awt.Font.getPeer(Unknown Source)
at sun.awt.windows.WComponentPeer._setFont(Native Method)
at sun.awt.windows.WComponentPeer.setFont(Unknown Source)
at sun.awt.windows.WWindowPeer.initialize(Unknown Source)
at sun.awt.windows.WFramePeer.initialize(Unknown Source)
at sun.awt.windows.WComponentPeer.(Unknown Source)
at sun.awt.windows.WCanvasPeer.(Unknown Source)
at sun.awt.windows.WPanelPeer.(Unknown Source)
at sun.awt.windows.WWindowPeer.(Unknown Source)
at sun.awt.windows.WFramePeer.(Unknown Source)
at sun.awt.windows.WToolkit.createFrame(Unknown Source)
at java.awt.Frame.addNotify(Unknown Source)
at java.awt.Window.show(Unknown Source)
at java.awt.Component.show(Unknown Source)
at java.awt.Component.setVisible(Unknown Source)
at java.awt.Window.setVisible(Unknown Source)
at Jtable.JTableDiag.(JTableDiag.java:41)
at test111.test.main(test.java:21)
很明显的啊 报这个错误就是缺少包
queshaobao
很明显的啊 报这个错误就是缺少包
很明显的啊 报这个错误就是缺少包
这个是没有找到对应文件。你看下是不是有类文件名叫 Default啊，可能该名称为内置关键字，不能用呢