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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 23:34:52 PDT 2000 --><TITLE>Java 2 Platform SE v1.3: Class StreamTokenizer</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/StreamTokenizer.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/SerializablePermission.html"><B>PREV CLASS</B></A> <A HREF="../../java/io/StringBufferInputStream.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="StreamTokenizer.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: INNER | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: <A HREF="#field_detail">FIELD</A> | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">java.io</FONT><BR>Class StreamTokenizer</H2><PRE><A HREF="../../java/lang/Object.html">java.lang.Object</A> | +--<B>java.io.StreamTokenizer</B></PRE><HR><DL><DT>public class <B>StreamTokenizer</B><DT>extends <A HREF="../../java/lang/Object.html">Object</A></DL><P>The <code>StreamTokenizer</code> class takes an input stream and parses it into "tokens", allowing the tokens to be read one at a time. The parsing process is controlled by a table and a number of flags that can be set to various states. The stream tokenizer can recognize identifiers, numbers, quoted strings, and various comment styles. <p> Each byte read from the input stream is regarded as a character in the range <code>'\u0000'</code> through <code>'\u00FF'</code>. The character value is used to look up five possible attributes of the character: <i>white space</i>, <i>alphabetic</i>, <i>numeric</i>, <i>string quote</i>, and <i>comment character</i>. Each character can have zero or more of these attributes. <p> In addition, an instance has four flags. These flags indicate: <ul> <li>Whether line terminators are to be returned as tokens or treated as white space that merely separates tokens. <li>Whether C-style comments are to be recognized and skipped. <li>Whether C++-style comments are to be recognized and skipped. <li>Whether the characters of identifiers are converted to lowercase. </ul> <p> A typical application first constructs an instance of this class, sets up the syntax tables, and then repeatedly loops calling the <code>nextToken</code> method in each iteration of the loop until it returns the value <code>TT_EOF</code>.<P><DL><DT><B>Since: </B><DD>JDK1.0</DD><DT><B>See Also: </B><DD><A HREF="../../java/io/StreamTokenizer.html#nextToken()"><CODE>nextToken()</CODE></A>, <A HREF="../../java/io/StreamTokenizer.html#TT_EOF"><CODE>TT_EOF</CODE></A></DL><HR><P><!-- ======== INNER CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><A NAME="field_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Field Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> double</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/io/StreamTokenizer.html#nval">nval</A></B></CODE><BR> If the current token is a number, this field contains the value of that number.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../java/lang/String.html">String</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../java/io/StreamTokenizer.html#sval">sval</A></B></CODE><BR> If the current token is a word token, this field contains a string giving the characters of the word token.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/io/StreamTokenizer.html#TT_EOF">TT_EOF</A></B></CODE><BR> A constant indicating that the end of the stream has been read.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/io/StreamTokenizer.html#TT_EOL">TT_EOL</A></B></CODE><BR> A constant indicating that the end of the line has been read.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/io/StreamTokenizer.html#TT_NUMBER">TT_NUMBER</A></B></CODE><BR> A constant indicating that a number token has been read.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/io/StreamTokenizer.html#TT_WORD">TT_WORD</A></B></CODE><BR> A constant indicating that a word token has been read.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/io/StreamTokenizer.html#ttype">ttype</A></B></CODE><BR> After a call to the <code>nextToken</code> method, this field contains the type of the token just read.</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/StreamTokenizer.html#StreamTokenizer(java.io.InputStream)">StreamTokenizer</A></B>(<A HREF="../../java/io/InputStream.html">InputStream</A> is)</CODE><BR> <B>Deprecated.</B> <I>As of JDK version 1.1, the preferred way to tokenize an input stream is to convert it into a character stream, for example: <blockquote><pre> Reader r = new BufferedReader(new InputStreamReader(is)); StreamTokenizer st = new StreamTokenizer(r); </pre></blockquote></I></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../java/io/StreamTokenizer.html#StreamTokenizer(java.io.Reader)">StreamTokenizer</A></B>(<A HREF="../../java/io/Reader.html">Reader</A> r)</CODE><BR> Create a tokenizer that parses the given character stream.</TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Method Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/io/StreamTokenizer.html#commentChar(int)">commentChar</A></B>(int ch)</CODE><BR> Specified that the character argument starts a single-line comment.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/io/StreamTokenizer.html#eolIsSignificant(boolean)">eolIsSignificant</A></B>(boolean flag)</CODE><BR> Determines whether or not ends of line are treated as tokens.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/io/StreamTokenizer.html#lineno()">lineno</A></B>()</CODE><BR> Return the current line number.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/io/StreamTokenizer.html#lowerCaseMode(boolean)">lowerCaseMode</A></B>(boolean fl)</CODE><BR> Determines whether or not word token are automatically lowercased.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/io/StreamTokenizer.html#nextToken()">nextToken</A></B>()</CODE><BR> Parses the next token from the input stream of this tokenizer.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/io/StreamTokenizer.html#ordinaryChar(int)">ordinaryChar</A></B>(int ch)</CODE><BR> Specifies that the character argument is "ordinary" in this tokenizer.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/io/StreamTokenizer.html#ordinaryChars(int, int)">ordinaryChars</A></B>(int low, int hi)</CODE><BR> Specifies that all characters <i>c</i> in the range <code>low <= <i>c</i> <= high</code> are "ordinary" in this tokenizer.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/io/StreamTokenizer.html#parseNumbers()">parseNumbers</A></B>()</CODE><BR> Specifies that numbers should be parsed by this tokenizer.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/io/StreamTokenizer.html#pushBack()">pushBack</A></B>()</CODE><BR> Causes the next call to the <code>nextToken</code> method of this tokenizer to return the current value in the <code>ttype</code> field, and not to modify the value in the <code>nval</code> or <code>sval</code> field.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/io/StreamTokenizer.html#quoteChar(int)">quoteChar</A></B>(int ch)</CODE><BR> Specifies that matching pairs of this character delimit string⌨️ 快捷键说明
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