为什么报java.lang.NullPointerException'>java.lang.NullPointerExceptionimportjava.io.File;importjava.io.FileWriter;importjava.io.IOException'>java.io.IOException;publicclassStorageJavaDemo{ /** *@paramargs...

Android点滴---AndroidAnnotationsjava.lang.ClassNotFoundException今天在网上找资料，下载了一个Demo，运行时报：Causedby:java.lang.ClassNotFoundException:Didn'tfindclass"net.mobctrl.listviewdemo.MainActivity_"onpath:...

这又是怎么回事，头晕啊，Causedby:java.lang.ClassCastException:java.lang.Stringjava.lang.reflect.InvocationTargetException'>java.lang.reflect.InvocationTargetException atsun.reflect.NativeMethodAccessorImpl.invoke...

java.lang.ClassCastException:java.lang.String1Listattrs=(List)obj;2Listversions=null;3BasicAttributeattr=(BasicAttribute)attrs.get(0);4versions=(Vector)attr.get();4处抛出java.lang.ClassCastException'>jav...

java.lang.NoClassDefFoundError'>java.lang.NoClassDefFoundError:Couldnotinitializeclasscn.elvis.utils.JdbcUt写的jdbc工具类，前期写了测试正确，但发布到tomcat中就报这样的错误。javax.servlet.ServletException:Servletexecutionthrewane...

Eclipse下用Lomboz启动tomcat出现错误我用的eclipse3.1,tomcat5.0.30,用lomboz启动tomcat出现以下错误大家救救我啊Bootstrap:Classloadercreationthrewexceptionjava.lang.ExceptionInInitializerError'>java.lang.ExceptionInInitializerError...

java.lang.NullPointerException'>java.lang.NullPointerException分页处理java">java.lang.NullPointerException attjut.edu.dcx.model.SystemContext.getPageSize(SystemContext.java:16) attjut.edu.dcx.dao.BaseDao....

高分求助报错java.lang.NullPointerException'>java.lang.NullPointerExceptionservlet publicvoiddoGet(HttpServletRequestrequest,HttpServletResponseresponse) throwsServletException,IOException{this.doPost(req...

myeclipse上开发j2me的错误提示怎么看（找个好多没有解决的，CSDN能人出来啊......)对于javame的提示实在无语啊。如下java.lang.IllegalArgumentException:Unsupportedsize atjavax.microedition.lcdui.Font.getFont(+69) atprj14_1.WelcomeCanvas.paint(+10)...

[求助]java.lang.ClassCastException:java.lang.Class这个错误是什么原因造成的? 对这个不是很懂,想问问高手们,为什么会报这个错误?谢谢 HTTPStatus500- -------------------------------------------------------------------------------- ...

错误：java.lang.NoClassDefFoundError'>java.lang.NoClassDefFoundError:org/apache/commons/lang3/StringUtils错误：java.lang.NoClassDefFoundError:org/apache/commons/lang3/StringUtils我已经把org/apache/commons/lang3...

答案为什么是B？voidwaitForSignal(){Objectobj=newObject();synchronized(Thread.currentThread()){obj.wait();obj.notify();}}whatstatementisture?A.thiscodemaythrowanInterruptedException.B.thiscodemaythrowanIllega...

Android--Canvasjava.lang.UnsupportedOperationException干货java.lang.UnsupportedOperationExceptionatandroid.view.GLES20Canvas.clipPath(GLES20Canvas.java:287)atbr.com.iba.view.PageCurlView.drawCurl(PageCu...

java.lang.NumberFormatException:null错误org.apache.jasper.JasperException:AnexceptionoccurredprocessingJSPpage/ReplyOK.jspatline52:pageEncoding="UTF-8"%>3:<%@pageimport="java.sql.*&...

运行报错：java.lang.ArrayIndexOutOfBoundsException'>java.lang.ArrayIndexOutOfBoundsException:2java">packageie.dit.comp.lukejia.fyp.swn; importjava.io.BufferedReader; importjava.io.File;importjava.io.FileRe...

为什么我的Tomcat怎么设置都不对？谢谢大家来帮帮忙！我安装了JDSK没有问题，已经写了一个最简单的JAVA程序并可以运行。可安装Tomcat后，Tomcat就是运行不起来。导致在浏览器中的localhost:8080也不行。请问应该怎样设置Tomcat？？谢谢！color='#e78608'>------解决方案--------------------tomcat起不来的原因有很多。如果你是完...

Hibernate统计时的java.lang.ClassCastException:java.lang.Long错误请解程序为一段统计表中记录数:===================================================================this,countHql="selectcount(rc.id)fromRCdatarc"List...

Android项目引入actionbarsherlock作为library后混淆之后的异常现象：AndroidAPP中，引入actionbarsherlock开源库作为滑动菜单，调试运行没有问题，项目混淆打包后，程序运行异常退出，截获异常log为：java"><spanstyle="white-space:pre"> </span>java.lang.E...

有关APPLET的问题,望高手帮忙~~~~我用ECLIPSE写了一个APPLET程序,用ECLIPSE和Appletviewer运行都没问题，但直接运行ＨＴＭＬ文件就无法运行．ＪＡＶＡ控制台显示java.lang.ExceptionInInitializerError'>java.lang.ExceptionInInitializerError atsun.reflect.NativeConstr...

java.lang.NoSuchMethodError。java">IPowerManagermanager= IPowerManager.Stub.asInterface(ServiceManager.getService("power")); if(manager!=null) { manager.setTemporaryScreenBrightnessSettingOverrid...