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Format (Colt 1.2.0 - API Specification)
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corejava</FONT>
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Class Format</H2>
<PRE>
<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">java.lang.Object</A>
<IMG SRC="../resources/inherit.gif" ALT="extended by"><B>corejava.Format</B>
</PRE>
<HR>
<DL>
<DT>public class <B>Format</B><DT>extends <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A></DL>
<P>
A class for formatting numbers that follows <tt>printf</tt> conventions.
Also implements C-like <tt>atoi</tt> and <tt>atof</tt> functions
<P>
<P>
<DL>
<DT><B>Version:</B></DT>
<DD>1.22 2002-11-16</DD>
</DL>
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<B>Constructor Summary</B></FONT></TD>
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<TD><CODE><B><A HREF="../corejava/Format.html#Format(java.lang.String)">Format</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> s)</CODE>
<BR>
Formats the number following <tt>printf</tt> conventions.</TD>
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<!-- ========== METHOD SUMMARY =========== -->
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<CODE>static double</CODE></FONT></TD>
<TD><CODE><B><A HREF="../corejava/Format.html#atof(java.lang.String)">atof</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> s)</CODE>
<BR>
Converts a string of digits to a <tt>double</tt></TD>
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<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="../corejava/Format.html#atoi(java.lang.String)">atoi</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> s)</CODE>
<BR>
Converts a string of digits (decimal, octal or hex) to an integer</TD>
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<CODE>static long</CODE></FONT></TD>
<TD><CODE><B><A HREF="../corejava/Format.html#atol(java.lang.String)">atol</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> s)</CODE>
<BR>
Converts a string of digits (decimal, octal or hex) to a long integer</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../corejava/Format.html#format(char)">format</A></B>(char c)</CODE>
<BR>
Formats a character into a string (like sprintf in C)</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../corejava/Format.html#format(double)">format</A></B>(double x)</CODE>
<BR>
Formats a <tt>double</tt> into a string (like sprintf in C)</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<CODE> <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../corejava/Format.html#format(int)">format</A></B>(int x)</CODE>
<BR>
Formats an integer into a string (like sprintf in C)</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../corejava/Format.html#format(long)">format</A></B>(long x)</CODE>
<BR>
Formats a long integer into a string (like sprintf in C)</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../corejava/Format.html#format(java.lang.String)">format</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> s)</CODE>
<BR>
Formats a string into a larger string (like sprintf in C)</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<CODE>static void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../corejava/Format.html#main(java.lang.String[])">main</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>[] a)</CODE>
<BR>
a test stub for the format class</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../corejava/Format.html#printf(java.lang.String, char)">printf</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> fmt,
char x)</CODE>
<BR>
prints a formatted number following printf conventions</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../corejava/Format.html#printf(java.lang.String, double)">printf</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> fmt,
double x)</CODE>
<BR>
prints a formatted number following printf conventions</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../corejava/Format.html#printf(java.lang.String, int)">printf</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> fmt,
int x)</CODE>
<BR>
prints a formatted number following printf conventions</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../corejava/Format.html#printf(java.lang.String, long)">printf</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> fmt,
long x)</CODE>
<BR>
prints a formatted number following printf conventions</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../corejava/Format.html#printf(java.lang.String, java.lang.String)">printf</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> fmt,
<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> x)</CODE>
<BR>
prints a formatted number following printf conventions</TD>
</TR>
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<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
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<TD><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A></B></TD>
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<P>
<!-- ============ FIELD DETAIL =========== -->
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<B>Constructor Detail</B></FONT></TD>
</TR>
</TABLE>
<A NAME="Format(java.lang.String)"><!-- --></A><H3>
Format</H3>
<PRE>
public <B>Format</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> s)</PRE>
<DL>
<DD>Formats the number following <tt>printf</tt> conventions.
Main limitation: Can only handle one format parameter at a time
Use multiple Format objects to format more than one number
<P>
<DT><B>Parameters:</B><DD><CODE>s</CODE> - the format string following printf conventions
The string has a prefix, a format code and a suffix. The prefix and suffix
become part of the formatted output. The format code directs the
formatting of the (single) parameter to be formatted. The code has the
following structure
<ul>
<li> a % (required)
<li> a modifier (optional)
<dl>
<dt> + <dd> forces display of + for positive numbers
<dt> 0 <dd> show leading zeroes
<dt> - <dd> align left in the field
<dt> space <dd> prepend a space in front of positive numbers
<dt> # <dd> use "alternate" format. Add 0 or 0x for octal or hexadecimal numbers. Don't suppress trailing zeroes in general floating point format.
</dl>
<li> an integer denoting field width (optional)
<li> a period followed by an integer denoting precision (optional)
<li> a format descriptor (required)
<dl>
<dt>f <dd> floating point number in fixed format
<dt>e, E <dd> floating point number in exponential notation (scientific format). The E format results in an uppercase E for the exponent (1.14130E+003), the e format in a lowercase e.
<dt>g, G <dd> floating point number in general format (fixed format for small numbers, exponential format for large numbers). Trailing zeroes are suppressed. The G format results in an uppercase E for the exponent (if any), the g format in a lowercase e.
<dt>d, i <dd> integer in decimal
<dt>x <dd> integer in hexadecimal
<dt>o <dd> integer in octal
<dt>s <dd> string
<dt>c <dd> character
</dl>
</ul>
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/IllegalArgumentException.html" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if bad format</DL>
<!-- ============ METHOD DETAIL ========== -->
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<B>Method Detail</B></FONT></TD>
</TR>
</TABLE>
<A NAME="printf(java.lang.String, double)"><!-- --></A><H3>
printf</H3>
<PRE>
public static void <B>printf</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> fmt,
double x)</PRE>
<DL>
<DD>prints a formatted number following printf conventions
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>fmt</CODE> - the format string<DD><CODE>x</CODE> - the double to print</DL>
</DD>
</DL>
<HR>
<A NAME="printf(java.lang.String, int)"><!-- --></A><H3>
printf</H3>
<PRE>
public static void <B>printf</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> fmt,
int x)</PRE>
<DL>
<DD>prints a formatted number following printf conventions
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>fmt</CODE> - the format string<DD><CODE>x</CODE> - the int to print</DL>
</DD>
</DL>
<HR>
<A NAME="printf(java.lang.String, long)"><!-- --></A><H3>
printf</H3>
<PRE>
public static void <B>printf</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> fmt,
long x)</PRE>
<DL>
<DD>prints a formatted number following printf conventions
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>fmt</CODE> - the format string<DD><CODE>x</CODE> - the long to print</DL>
</DD>
</DL>
<HR>
<A NAME="printf(java.lang.String, char)"><!-- --></A><H3>
printf</H3>
<PRE>
public static void <B>printf</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> fmt,
char x)</PRE>
<DL>
<DD>prints a formatted number following printf conventions
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>fmt</CODE> - the format string<DD><CODE>x</CODE> - the character to print</DL>
</DD>
</DL>
<HR>
<A NAME="printf(java.lang.String, java.lang.String)"><!-- --></A><H3>
printf</H3>
<PRE>
public static void <B>printf</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> fmt,
<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> x)</PRE>
<DL>
<DD>prints a formatted number following printf conventions
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>fmt</CODE> - the format string<DD><CODE>x</CODE> - a string to print</DL>
</DD>
</DL>
<HR>
<A NAME="atoi(java.lang.String)"><!-- --></A><H3>
atoi</H3>
<PRE>
public static int <B>atoi</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> s)</PRE>
<DL>
<DD>Converts a string of digits (decimal, octal or hex) to an integer
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>s</CODE> - a string
<DT><B>Returns:</B><DD>the numeric value of the prefix of s representing a base 10 integer</DL>
</DD>
</DL>
<HR>
<A NAME="atol(java.lang.String)"><!-- --></A><H3>
atol</H3>
<PRE>
public static long <B>atol</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> s)</PRE>
<DL>
<DD>Converts a string of digits (decimal, octal or hex) to a long integer
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>s</CODE> - a string
<DT><B>Returns:</B><DD>the numeric value of the prefix of s representing a base 10 integer</DL>
</DD>
</DL>
<HR>
<A NAME="atof(java.lang.String)"><!-- --></A><H3>
atof</H3>
<PRE>
public static double <B>atof</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> s)</PRE>
<DL>
<DD>Converts a string of digits to a <tt>double</tt>
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>s</CODE> - a string</DL>
</DD>
</DL>
<HR>
<A NAME="format(double)"><!-- --></A><H3>
format</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>format</B>(double x)</PRE>
<DL>
<DD>Formats a <tt>double</tt> into a string (like sprintf in C)
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>x</CODE> - the number to format
<DT><B>Returns:</B><DD>the formatted string
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/IllegalArgumentException.html" title="class or interface in java.lang">IllegalArgumentException</A></CODE> - if bad argument</DL>
</DD>
</DL>
<HR>
<A NAME="format(int)"><!-- --></A><H3>
format</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>format</B>(int x)</PRE>
<DL>
<DD>Formats an integer into a string (like sprintf in C)
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>x</CODE> - the number to format
<DT><B>Returns:</B><DD>the formatted string</DL>
</DD>
</DL>
<HR>
<A NAME="format(long)"><!-- --></A><H3>
format</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>format</B>(long x)</PRE>
<DL>
<DD>Formats a long integer into a string (like sprintf in C)
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>x</CODE> - the number to format
<DT><B>Returns:</B><DD>the formatted string</DL>
</DD>
</DL>
<HR>
<A NAME="format(char)"><!-- --></A><H3>
format</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>format</B>(char c)</PRE>
<DL>
<DD>Formats a character into a string (like sprintf in C)
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the formatted string</DL>
</DD>
</DL>
<HR>
<A NAME="format(java.lang.String)"><!-- --></A><H3>
format</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>format</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> s)</PRE>
<DL>
<DD>Formats a string into a larger string (like sprintf in C)
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the formatted string</DL>
</DD>
</DL>
<HR>
<A NAME="main(java.lang.String[])"><!-- --></A><H3>
main</H3>
<PRE>
public static void <B>main</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>[] a)</PRE>
<DL>
<DD>a test stub for the format class
<P>
<DD><DL>
</DL>
</DD>
</DL>
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