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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Frameset//EN""http://www.w3.org/TR/REC-html40/frameset.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc on Thu Apr 27 23:34:42 PDT 2000 --><TITLE>Java 2 Platform SE v1.3: Class FileWriter</TITLE><LINK REL ="stylesheet" TYPE="text/css" HREF="../../stylesheet.css" TITLE="Style"></HEAD><BODY BGCOLOR="white"><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_top"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <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/FileWriter.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. v1.3</b></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../java/io/FileReader.html"><B>PREV CLASS</B></A> <A HREF="../../java/io/FilterInputStream.html"><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="FileWriter.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: INNER | <A HREF="#fields_inherited_from_class_java.io.Writer">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#methods_inherited_from_class_java.io.OutputStreamWriter">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><!-- =========== END OF NAVBAR =========== --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">java.io</FONT><BR>Class FileWriter</H2><PRE><A HREF="../../java/lang/Object.html">java.lang.Object</A> | +--<A HREF="../../java/io/Writer.html">java.io.Writer</A> | +--<A HREF="../../java/io/OutputStreamWriter.html">java.io.OutputStreamWriter</A> | +--<B>java.io.FileWriter</B></PRE><HR><DL><DT>public class <B>FileWriter</B><DT>extends <A HREF="../../java/io/OutputStreamWriter.html">OutputStreamWriter</A></DL><P>Convenience class for writing character files. The constructors of this class assume that the default character encoding and the default byte-buffer size are acceptable. To specify these values yourself, construct an OutputStreamWriter on a FileOutputStream.<P><DL><DT><B>Since: </B><DD>JDK1.1</DD><DT><B>See Also: </B><DD><A HREF="../../java/io/OutputStreamWriter.html"><CODE>OutputStreamWriter</CODE></A>, <A HREF="../../java/io/FileOutputStream.html"><CODE>FileOutputStream</CODE></A></DL><HR><P><!-- ======== INNER CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><A NAME="fields_inherited_from_class_java.io.Writer"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from class java.io.<A HREF="../../java/io/Writer.html">Writer</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../java/io/Writer.html#lock">lock</A></CODE></TD></TR></TABLE> <!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><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/io/FileWriter.html#FileWriter(java.io.File)">FileWriter</A></B>(<A HREF="../../java/io/File.html">File</A> file)</CODE><BR> Constructs a FileWriter object given a File object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../java/io/FileWriter.html#FileWriter(java.io.FileDescriptor)">FileWriter</A></B>(<A HREF="../../java/io/FileDescriptor.html">FileDescriptor</A> fd)</CODE><BR> Constructs a FileWriter object associated with a file descriptor.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../java/io/FileWriter.html#FileWriter(java.lang.String)">FileWriter</A></B>(<A HREF="../../java/lang/String.html">String</A> fileName)</CODE><BR> Constructs a FileWriter object given a file name.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../java/io/FileWriter.html#FileWriter(java.lang.String, boolean)">FileWriter</A></B>(<A HREF="../../java/lang/String.html">String</A> fileName, boolean append)</CODE><BR> Constructs a FileWriter object given a file name with a boolean indicating whether or not to append the data written.</TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="methods_inherited_from_class_java.io.OutputStreamWriter"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from class java.io.<A HREF="../../java/io/OutputStreamWriter.html">OutputStreamWriter</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../java/io/OutputStreamWriter.html#close()">close</A>, <A HREF="../../java/io/OutputStreamWriter.html#flush()">flush</A>, <A HREF="../../java/io/OutputStreamWriter.html#getEncoding()">getEncoding</A>, <A HREF="../../java/io/OutputStreamWriter.html#write(char[], int, int)">write</A>, <A HREF="../../java/io/OutputStreamWriter.html#write(int)">write</A>, <A HREF="../../java/io/OutputStreamWriter.html#write(java.lang.String, int, int)">write</A></CODE></TD></TR></TABLE> <A NAME="methods_inherited_from_class_java.io.Writer"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from class java.io.<A HREF="../../java/io/Writer.html">Writer</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../java/io/Writer.html#write(char[])">write</A>, <A HREF="../../java/io/Writer.html#write(java.lang.String)">write</A></CODE></TD></TR></TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from class java.lang.<A HREF="../../java/lang/Object.html">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#toString()">toString</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" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=1><FONT SIZE="+2"><B>Constructor Detail</B></FONT></TD></TR></TABLE><A NAME="FileWriter(java.lang.String)"><!-- --></A><H3>FileWriter</H3><PRE>public <B>FileWriter</B>(<A HREF="../../java/lang/String.html">String</A> fileName) throws <A HREF="../../java/io/IOException.html">IOException</A></PRE><DL><DD>Constructs a FileWriter object given a file name.<DD><DL><DT><B>Parameters:</B><DD><CODE>fileName</CODE> - String The system-dependent filename.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/io/IOException.html">IOException</A></CODE> - if the specified file is not found or if some other I/O error occurs.</DL></DD></DL><HR><A NAME="FileWriter(java.lang.String, boolean)"><!-- --></A><H3>FileWriter</H3><PRE>public <B>FileWriter</B>(<A HREF="../../java/lang/String.html">String</A> fileName, boolean append) throws <A HREF="../../java/io/IOException.html">IOException</A></PRE><DL><DD>Constructs a FileWriter object given a file name with a boolean indicating whether or not to append the data written.<DD><DL><DT><B>Parameters:</B><DD><CODE>fileName</CODE> - String The system-dependent filename.<DD><CODE>append</CODE> - boolean if <code>true</code>, then data will be written to the end of the file rather than the beginning.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/io/IOException.html">IOException</A></CODE> - if the specified file is not found or if some other I/O error occurs.</DL></DD></DL><HR><A NAME="FileWriter(java.io.File)"><!-- --></A><H3>FileWriter</H3><PRE>public <B>FileWriter</B>(<A HREF="../../java/io/File.html">File</A> file) throws <A HREF="../../java/io/IOException.html">IOException</A></PRE><DL><DD>Constructs a FileWriter object given a File object.<DD><DL><DT><B>Parameters:</B><DD><CODE>file</CODE> - a File object to write to.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/io/IOException.html">IOException</A></CODE> - if the specified file is not found or if some other I/O error occurs.</DL></DD></DL><HR><A NAME="FileWriter(java.io.FileDescriptor)"><!-- --></A><H3>FileWriter</H3><PRE>public <B>FileWriter</B>(<A HREF="../../java/io/FileDescriptor.html">FileDescriptor</A> fd)</PRE><DL><DD>Constructs a FileWriter object associated with a file descriptor.<DD><DL><DT><B>Parameters:</B><DD><CODE>fd</CODE> - FileDescriptor object to write to.</DL></DD></DL><!-- ============ METHOD DETAIL ========== --><!-- ========= END OF CLASS DATA ========= --><HR><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_bottom"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_bottom_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <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/FileWriter.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. v1.3</b></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../java/io/FileReader.html"><B>PREV CLASS</B></A> <A HREF="../../java/io/FilterInputStream.html"><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="FileWriter.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: INNER | <A HREF="#fields_inherited_from_class_java.io.Writer">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#methods_inherited_from_class_java.io.OutputStreamWriter">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><!-- =========== END OF NAVBAR =========== --><HR><font size="-1"><a href="http://java.sun.com/cgi-bin/bugreport.cgi">Submit a bug or feature</a><br>For further API reference and developer documentation, see <a href="http://java.sun.com/products/jdk/1.3/devdocs-vs-specs.html">Java 2 SDK SE Developer Documentation</a>. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples. <p>Java, Java 2D, and JDBC are trademarks or registered trademarks of Sun Microsystems, Inc. in the US and other countries.<br>Copyright 1993-2000 Sun Microsystems, Inc. 901 San Antonio Road<br>Palo Alto, California, 94303, U.S.A. All Rights Reserved.</font></BODY></HTML>⌨️ 快捷键说明
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