<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <!--NewPage--> <HTML> <HEAD> <!-- Generated by javadoc (build 1.4.2-rc) on Fri Jun 13 00:14:21 PDT 2003 --> <TITLE> Error (Java 2 Platform SE v1.4.2) </TITLE> <META NAME="keywords" CONTENT="java.lang.Error class"> <LINK REL ="stylesheet" TYPE="text/css" HREF="../../stylesheet.css" TITLE="Style"> <SCRIPT type="text/javascript"> function windowTitle() { parent.document.title="Error (Java 2 Platform SE v1.4.2)"; } </SCRIPT> </HEAD> <BODY BGCOLOR="white" onload="windowTitle();"> <!-- ========= START OF TOP NAVBAR ======= --> <A NAME="navbar_top"><!-- --></A> <A HREF="#skip-navbar_top" title="Skip navigation links"></A> <TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> <TR> <TD COLSPAN=3 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A NAME="navbar_top_firstrow"><!-- --></A> <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/Error.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../index-files/index-1.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR> </TABLE> </TD> <TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM> <b>Java<sup><font size=-2>TM</font></sup> 2 Platform<br>Std. Ed. v1.4.2</b></EM> </TD> </TR>
<TR> <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../java/lang/ClassFormatError.html" title="class in java.lang"><B>PREV CLASS</B></A> <A HREF="../../java/lang/ExceptionInInitializerError.html" title="class in java.lang"><B>NEXT CLASS</B></A></FONT></TD> <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../index.html" target="_top"><B>FRAMES</B></A> <A HREF="Error.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--> </SCRIPT> <NOSCRIPT> <A HREF="../../allclasses-noframe.html"><B>All Classes</B></A> </NOSCRIPT> </FONT></TD> </TR> <TR> <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#methods_inherited_from_class_java.lang.Throwable">METHOD</A></FONT></TD> <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | METHOD</FONT></TD> </TR> </TABLE> <A NAME="skip-navbar_top"></A> <!-- ========= END OF TOP NAVBAR ========= --> <HR> <!-- ======== START OF CLASS DATA ======== --> <H2> <FONT SIZE="-1"> java.lang</FONT> <BR> Class Error</H2> <PRE> <A HREF="../../java/lang/Object.html" title="class in java.lang">java.lang.Object</A> <IMG SRC="../../resources/inherit.gif" ALT="extended by"><A HREF="../../java/lang/Throwable.html" title="class in java.lang">java.lang.Throwable</A> <IMG SRC="../../resources/inherit.gif" ALT="extended by"><B>java.lang.Error</B> </PRE> <DL> <DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../java/io/Serializable.html" title="interface in java.io">Serializable</A></DD> </DL> <DL> <DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../java/lang/AssertionError.html" title="class in java.lang">AssertionError</A>, <A HREF="../../java/awt/AWTError.html" title="class in java.awt">AWTError</A>, <A HREF="../../java/nio/charset/CoderMalfunctionError.html" title="class in java.nio.charset">CoderMalfunctionError</A>, <A HREF="../../javax/xml/parsers/FactoryConfigurationError.html" title="class in javax.xml.parsers">FactoryConfigurationError</A>, <A HREF="../../java/lang/LinkageError.html" title="class in java.lang">LinkageError</A>, <A HREF="../../java/lang/ThreadDeath.html" title="class in java.lang">ThreadDeath</A>, <A HREF="../../javax/xml/transform/TransformerFactoryConfigurationError.html" title="class in javax.xml.transform">TransformerFactoryConfigurationError</A>, <A HREF="../../java/lang/VirtualMachineError.html" title="class in java.lang">VirtualMachineError</A></DD> </DL> <HR> <DL> <DT>public class <B>Error</B><DT>extends <A HREF="../../java/lang/Throwable.html" title="class in java.lang">Throwable</A></DL> <P> An <code>Error</code> is a subclass of <code>Throwable</code> that indicates serious problems that a reasonable application should not try to catch. Most such errors are abnormal conditions. The <code>ThreadDeath</code> error, though a "normal" condition, is also a subclass of <code>Error</code> because most applications should not try to catch it. Error是Throwable的子类,表明正常应用中不能捕获的严重问题。大部分这样的错误 都是非正常条件下发生,ThreadDeath错误,尽管是“正常”条件,也是Error的子类因为大部分应用程序不应当 捕获它。 <p> A method is not required to declare in its <code>throws</code> clause any subclasses of <code>Error</code> that might be thrown during the execution of the method but not caught, since these errors are abnormal conditions that should never occur. 任何Error的子类不需要方法的throws子句中声明抛出,因为在执行该方法中 可以被抛出但不能被捕获,因为这些错误是在非正常条件下发生的。(原文有误) <P> <P> <DL> <DT><B>Since:</B></DT> <DD>JDK1.0</DD> <DT><B>See Also:</B><DD><A HREF="../../java/lang/ThreadDeath.html" title="class in java.lang"><CODE>ThreadDeath</CODE></A>, <A HREF="../../serialized-form.html#java.lang.Error">Serialized Form</A></DL> <HR> <P> <!-- ======== NESTED CLASS SUMMARY ======== --> <!-- =========== FIELD SUMMARY =========== -->
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
<A NAME="constructor_summary"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TD COLSPAN=2><FONT SIZE="+2"> <B>Constructor Summary</B></FONT></TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><B><A HREF="../../java/lang/Error.html#Error()">Error</A></B>()</CODE> <BR> Constructs a new error with <code>null</code> as its detail message. 创建一个详细信息为null的Error。</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><B><A HREF="../../java/lang/Error.html#Error(java.lang.String)">Error</A></B>(<A HREF="../../java/lang/String.html" title="class in java.lang">String</A> message)</CODE> <BR> Constructs a new error with the specified detail message. 创建一个指定详细信息的Error。</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><B><A HREF="../../java/lang/Error.html#Error(java.lang.String, java.lang.Throwable)">Error</A></B>(<A HREF="../../java/lang/String.html" title="class in java.lang">String</A> message, <A HREF="../../java/lang/Throwable.html" title="class in java.lang">Throwable</A> cause)</CODE> <BR> Constructs a new error with the specified detail message and cause.创建一个指定详细信息和原由的Error。</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><B><A HREF="../../java/lang/Error.html#Error(java.lang.Throwable)">Error</A></B>(<A HREF="../../java/lang/Throwable.html" title="class in java.lang">Throwable</A> cause)</CODE> <BR> Constructs a new error with the specified cause and a detail message of <tt>(cause==null ? null : cause.toString())</tt> (which typically contains the class and detail message of <tt>cause</tt>). 创建一个指定详细信息和原由(cause==null ? null : cause.toString())(通常包括cause的类和详细信息)的Error。</TD> </TR> </TABLE> <!-- ========== METHOD SUMMARY =========== --> <A NAME="methods_inherited_from_class_java.lang.Throwable"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> <TD><B>Methods inherited from class java.lang.<A HREF="../../java/lang/Throwable.html" title="class in java.lang">Throwable</A></B></TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><A HREF="../../java/lang/Throwable.html#fillInStackTrace()">fillInStackTrace</A>, <A HREF="../../java/lang/Throwable.html#getCause()">getCause</A>, <A HREF="../../java/lang/Throwable.html#getLocalizedMessage()">getLocalizedMessage</A>, <A HREF="../../java/lang/Throwable.html#getMessage()">getMessage</A>, <A HREF="../../java/lang/Throwable.html#getStackTrace()">getStackTrace</A>, <A HREF="../../java/lang/Throwable.html#initCause(java.lang.Throwable)">initCause</A>, <A HREF="../../java/lang/Throwable.html#printStackTrace()">printStackTrace</A>, <A HREF="../../java/lang/Throwable.html#printStackTrace(java.io.PrintStream)">printStackTrace</A>, <A HREF="../../java/lang/Throwable.html#printStackTrace(java.io.PrintWriter)">printStackTrace</A>, <A HREF="../../java/lang/Throwable.html#setStackTrace(java.lang.StackTraceElement[])">setStackTrace</A>, <A HREF="../../java/lang/Throwable.html#toString()">toString</A></CODE></TD> </TR> </TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> <TD><B>Methods inherited from class java.lang.<A HREF="../../java/lang/Object.html" title="class in java.lang">Object</A></B></TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><A HREF="../../java/lang/Object.html#clone()">clone</A>, <A HREF="../../java/lang/Object.html#equals(java.lang.Object)">equals</A>, <A HREF="../../java/lang/Object.html#finalize()">finalize</A>, <A HREF="../../java/lang/Object.html#getClass()">getClass</A>, <A HREF="../../java/lang/Object.html#hashCode()">hashCode</A>, <A HREF="../../java/lang/Object.html#notify()">notify</A>, <A HREF="../../java/lang/Object.html#notifyAll()">notifyAll</A>, <A HREF="../../java/lang/Object.html#wait()">wait</A>, <A HREF="../../java/lang/Object.html#wait(long)">wait</A>, <A HREF="../../java/lang/Object.html#wait(long, int)">wait</A></CODE></TD> </TR> </TABLE> <P> <!-- ============ FIELD DETAIL =========== --> <!-- ========= CONSTRUCTOR DETAIL ======== -->
<A NAME="constructor_detail"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TD COLSPAN=1><FONT SIZE="+2"> <B>Constructor Detail</B></FONT></TD> </TR> </TABLE> <A NAME="Error()"><!-- --></A><H3> Error</H3> <PRE> public <B>Error</B>()</PRE> <DL> <DD>Constructs a new error with <code>null</code> as its detail message. The cause is not initialized, and may subsequently be initialized by a call to <A HREF="../../java/lang/Throwable.html#initCause(java.lang.Throwable)"><CODE>Throwable.initCause(java.lang.Throwable)</CODE></A>. 创建一个详细信息为null的Error。cause没有被初始化,可以随后调用Throwable.initCause来初始化。 <P> </DL> <HR> <A NAME="Error(java.lang.String)"><!-- --></A><H3> Error</H3> <PRE> public <B>Error</B>(<A HREF="../../java/lang/String.html" title="class in java.lang">String</A> message)</PRE> <DL> <DD>Constructs a new error with the specified detail message. The cause is not initialized, and may subsequently be initialized by a call to <A HREF="../../java/lang/Throwable.html#initCause(java.lang.Throwable)"><CODE>Throwable.initCause(java.lang.Throwable)</CODE></A>. 创建一个指定详细信息的Error。cause没有被初始化,可以随后调用Throwable.initCause来初始化。 <P> <DT><B>Parameters:</B><DD><CODE>message</CODE> - the detail message. The detail message is saved for later retrieval by the <A HREF="../../java/lang/Throwable.html#getMessage()"><CODE>Throwable.getMessage()</CODE></A> method. 详细信息,可以通过Throwable.getMessage()方法获得。</DL> <HR> <A NAME="Error(java.lang.String, java.lang.Throwable)"><!-- --></A><H3> Error</H3> <PRE> public <B>Error</B>(<A HREF="../../java/lang/String.html" title="class in java.lang">String</A> message, <A HREF="../../java/lang/Throwable.html" title="class in java.lang">Throwable</A> cause)</PRE> <DL> <DD>Constructs a new error with the specified detail message and cause. 创建一个指定详细信息和cause的Error。 <p>Note that the detail message associated with <code>cause</code> is <i>not</i> automatically incorporated in this error's detail message. 注意和cause关联的详细信息不会自动和错误的详细信息合为一体。 <P> <DT><B>Parameters:</B><DD><CODE>message</CODE> - the detail message (which is saved for later retrieval by the <A HREF="../../java/lang/Throwable.html#getMessage()"><CODE>Throwable.getMessage()</CODE></A> method). 通过Throwable.getMessage()方法获得的详细信息。<DD><CODE>cause</CODE> - the cause (which is saved for later retrieval by the <A HREF="../../java/lang/Throwable.html#getCause()"><CODE>Throwable.getCause()</CODE></A> method). (A <tt>null</tt> value is permitted, and indicates that the cause is nonexistent or unknown.)通过Throwable.getCause()方法获得的原由(原由为空是允许的,表明原由不存在或未知)。<DT><B>Since:</B></DT> <DD>1.4</DD> </DL> <HR> <A NAME="Error(java.lang.Throwable)"><!-- --></A><H3> Error</H3> <PRE> public <B>Error</B>(<A HREF="../../java/lang/Throwable.html" title="class in java.lang">Throwable</A> cause)</PRE> <DL> <DD>Constructs a new error with the specified cause and a detail message of <tt>(cause==null ? null : cause.toString())</tt> (which typically contains the class and detail message of <tt>cause</tt>). This constructor is useful for errors that are little more than wrappers for other throwables. 创建一个指定详细信息和cause的Error(cause==null ? null : cause.toString())(通常包括cause的类和详细信息)。 此构造函数不比其他throwable的包装有用。 <P> <DT><B>Parameters:</B><DD><CODE>cause</CODE> - the cause (which is saved for later retrieval by the <A HREF="../../java/lang/Throwable.html#getCause()"><CODE>Throwable.getCause()</CODE></A> method). (A <tt>null</tt> value is permitted, and indicates that the cause is nonexistent or unknown.)通过Throwable.getCause()方法获得的原由(原由为空是允许的,表明原由不存在或未知)。<DT><B>Since:</B></DT> <DD>1.4</DD> </DL> <!-- ============ METHOD DETAIL ========== --> <!-- ========= END OF CLASS DATA ========= --> <HR> <!-- ======= START OF BOTTOM NAVBAR ====== --> <A NAME="navbar_bottom"><!-- --></A> <A HREF="#skip-navbar_bottom" title="Skip navigation links"></A> <TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> <TR> <TD COLSPAN=3 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A NAME="navbar_bottom_firstrow"><!-- --></A> <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/Error.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../index-files/index-1.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR> </TABLE> </TD> <TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM> <b>Java<sup><font size=-2>TM</font></sup> 2 Platform<br>Std. 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