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Note about iterators

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git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@600904 13f79535-47bb-0310-9956-ffa450edef68
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Nick Burch 2007-12-04 12:05:33 +00:00
parent 12705fe743
commit 92cb3654cb
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src/documentation/content/xdocs/hssf/quick-guide.xml
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@ -41,6 +41,7 @@
<li><link href="#CreateCells">How to create cells</link></li>
<li><link href="#CreateDateCells">How to create date cells</link></li>
<li><link href="#CellTypes">Working with different types of cells</link></li>
<li><link href="#Iterator">Iterate over rows and cells</link></li>
<li><link href="#TextExtraction">Text Extraction</link></li>
<li><link href="#Alignment">Aligning cells</link></li>
<li><link href="#Borders">Working with borders</link></li>
@ -234,6 +235,26 @@
fileOut.close();
</source>
</section>
<anchor id="Iterator"/>
<section><title>Iterate over rows and cells (including Java 5 foreach loops)</title>
<p>Sometimes, you'd like to just iterate over all the rows in
a sheet, or all the cells in a row. If you are using Java
5 or later, then this is especially handy, as it'll allow the
new foreach loop support to work.</p>
<p>Luckily, this is very easy. HSSFRow defines a
<em>CellIterator</em> inner class to handle iterating over
the cells (get one with a call to <em>row.cellIterator()</em>),
and HSSFSheet provides a <em>rowIterator()</em> method to
give an iterator over all the rows.</p>
<source>
HSSFSheet sheet = wb.getSheetAt(0);
for (HSSFRow row : sheet.rowIterator()) {
for (HSSFCell cell : row.cellIterator()) {
// Do something here
}
}
</source>
</section>
<anchor id="TextExtraction"/>
<section><title>Text Extraction</title>
<p>For most text extraction requirements, the standard