mirror of
https://github.com/apache/poi.git
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git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@352978 13f79535-47bb-0310-9956-ffa450edef68
542 lines
20 KiB
XML
542 lines
20 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE document PUBLIC "-//APACHE//DTD Documentation V1.1//EN" "../dtd/document-v11.dtd">
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<document>
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<header>
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<title>Busy Developers' Guide to HSSF Features</title>
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<authors>
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<person email="glens@apache.org" name="Glen Stampoultzis" id="CO"/>
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</authors>
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</header>
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<body>
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<section title="Busy Developers' Guide to Features">
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<p>
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Want to use HSSF read and write spreadsheets in a hurry? This guide is for you. If you're after
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more in-depth coverage of the HSSF user-API please consult the <link href="how-to.html">HOWTO</link>
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guide as it contains actual descriptions of how to use this stuff.
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</p>
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<section title="Index of Features">
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<ul>
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<li><link href="#NewWorkbook">How to create a new workbook</link></li>
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<li><link href="#NewSheet">How to create a sheet</link></li>
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<li><link href="#CreateCells">How to create cells</link></li>
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<li><link href="#CreateDateCells">How to create date cells</link></li>
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<li><link href="#CellTypes">Working with different types of cells</link></li>
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<li><link href="#Alignment">Aligning cells</link></li>
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<li><link href="#Borders">Working with borders</link></li>
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<li><link href="#FrillsAndFills">Fills and color</link></li>
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<li><link href="#MergedCells">Merging cells</link></li>
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<li><link href="#WorkingWithFonts">Working with fonts</link></li>
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<li><link href="#CustomColors">Custom colors</link></li>
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<li><link href="#ReadWriteWorkbook">Reading and writing</link></li>
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<li><link href="#NewLinesInCells">Use newlines in cells.</link></li>
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<li><link href="#DataFormats">Create user defined data formats.</link></li>
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<li><link href="#PrintArea">Set print area for a sheet.</link></li>
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<li><link href="#FooterPageNumbers">Set page numbers on the footer of a sheet.</link></li>
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<li><link href="#ShiftRows">Shift rows.</link></li>
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<li><link href="#SelectSheet">Set a sheet as selected.</link></li>
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</ul>
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</section>
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<section title="Features">
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<anchor id="NewWorkbook"/>
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<section title="New Workbook">
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<source>
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HSSFWorkbook wb = new HSSFWorkbook();
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FileOutputStream fileOut = new FileOutputStream("workbook.xls");
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wb.write(fileOut);
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fileOut.close();
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</source>
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</section>
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<anchor id="NewSheet"/>
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<section title="New Sheet">
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<source>
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFSheet sheet1 = wb.createSheet("new sheet");
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HSSFSheet sheet2 = wb.createSheet("second sheet");
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FileOutputStream fileOut = new FileOutputStream("workbook.xls");
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wb.write(fileOut);
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fileOut.close();
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</source>
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</section>
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<anchor id="CreateCells"/>
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<section title="Creating Cells">
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<source>
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFSheet sheet = wb.createSheet("new sheet");
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// Create a row and put some cells in it. Rows are 0 based.
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HSSFRow row = sheet.createRow((short)0);
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// Create a cell and put a value in it.
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HSSFCell cell = row.createCell((short)0);
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cell.setCellValue(1);
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// Or do it on one line.
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row.createCell((short)1).setCellValue(1.2);
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row.createCell((short)2).setCellValue("This is a string");
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row.createCell((short)3).setCellValue(true);
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// Write the output to a file
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FileOutputStream fileOut = new FileOutputStream("workbook.xls");
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wb.write(fileOut);
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fileOut.close();
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</source>
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</section>
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<anchor id="CreateDateCells"/>
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<section title="Creating Date Cells">
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<source>
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFSheet sheet = wb.createSheet("new sheet");
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// Create a row and put some cells in it. Rows are 0 based.
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HSSFRow row = sheet.createRow((short)0);
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// Create a cell and put a date value in it. The first cell is not styled
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// as a date.
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HSSFCell cell = row.createCell((short)0);
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cell.setCellValue(new Date());
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// we style the second cell as a date (and time). It is important to
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// create a new cell style from the workbook otherwise you can end up
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// modifying the built in style and effecting not only this cell but other cells.
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HSSFCellStyle cellStyle = wb.createCellStyle();
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cellStyle.setDataFormat(HSSFDataFormat.getFormat("m/d/yy h:mm"));
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cell = row.createCell((short)1);
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cell.setCellValue(new Date());
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cell.setCellStyle(cellStyle);
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// Write the output to a file
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FileOutputStream fileOut = new FileOutputStream("workbook.xls");
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wb.write(fileOut);
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fileOut.close();
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</source>
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</section>
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<anchor id="CellTypes"/>
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<section title="Working with different types of cells">
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<source>
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFSheet sheet = wb.createSheet("new sheet");
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HSSFRow row = sheet.createRow((short)2);
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row.createCell((short) 0).setCellValue(1.1);
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row.createCell((short) 1).setCellValue(new Date());
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row.createCell((short) 2).setCellValue("a string");
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row.createCell((short) 3).setCellValue(true);
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row.createCell((short) 4).setCellType(HSSFCell.CELL_TYPE_ERROR);
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// Write the output to a file
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FileOutputStream fileOut = new FileOutputStream("workbook.xls");
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wb.write(fileOut);
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fileOut.close();
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</source>
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</section>
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<anchor id="Alignment"/>
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<section title="Demonstrates various alignment options">
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<source>
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public static void main(String[] args)
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throws IOException
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{
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFSheet sheet = wb.createSheet("new sheet");
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HSSFRow row = sheet.createRow((short) 2);
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createCell(wb, row, (short) 0, HSSFCellStyle.ALIGN_CENTER);
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createCell(wb, row, (short) 1, HSSFCellStyle.ALIGN_CENTER_SELECTION);
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createCell(wb, row, (short) 2, HSSFCellStyle.ALIGN_FILL);
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createCell(wb, row, (short) 3, HSSFCellStyle.ALIGN_GENERAL);
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createCell(wb, row, (short) 4, HSSFCellStyle.ALIGN_JUSTIFY);
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createCell(wb, row, (short) 5, HSSFCellStyle.ALIGN_LEFT);
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createCell(wb, row, (short) 6, HSSFCellStyle.ALIGN_RIGHT);
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// Write the output to a file
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FileOutputStream fileOut = new FileOutputStream("workbook.xls");
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wb.write(fileOut);
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fileOut.close();
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}
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/**
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* Creates a cell and aligns it a certain way.
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*
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* @param wb the workbook
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* @param row the row to create the cell in
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* @param column the column number to create the cell in
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* @param align the alignment for the cell.
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*/
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private static void createCell(HSSFWorkbook wb, HSSFRow row, short column, short align)
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{
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HSSFCell cell = row.createCell(column);
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cell.setCellValue("Align It");
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HSSFCellStyle cellStyle = wb.createCellStyle();
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cellStyle.setAlignment(align);
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cell.setCellStyle(cellStyle);
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}
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</source>
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</section>
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<anchor id="Borders"/>
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<section title="Working with borders">
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<source>
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFSheet sheet = wb.createSheet("new sheet");
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// Create a row and put some cells in it. Rows are 0 based.
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HSSFRow row = sheet.createRow((short) 1);
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// Create a cell and put a value in it.
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HSSFCell cell = row.createCell((short) 1);
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cell.setCellValue(4);
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// Style the cell with borders all around.
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HSSFCellStyle style = wb.createCellStyle();
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style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
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style.setBottomBorderColor(HSSFColor.BLACK.index);
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style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
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style.setLeftBorderColor(HSSFColor.GREEN.index);
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style.setBorderRight(HSSFCellStyle.BORDER_THIN);
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style.setRightBorderColor(HSSFColor.BLUE.index);
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style.setBorderTop(HSSFCellStyle.BORDER_MEDIUM_DASHED);
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style.setTopBorderColor(HSSFColor.BLACK.index);
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cell.setCellStyle(style);
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// Write the output to a file
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FileOutputStream fileOut = new FileOutputStream("workbook.xls");
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wb.write(fileOut);
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fileOut.close();
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</source>
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</section>
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<anchor id="FillsAndFrills"/>
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<section title="Fills and colors">
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<source>
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFSheet sheet = wb.createSheet("new sheet");
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// Create a row and put some cells in it. Rows are 0 based.
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HSSFRow row = sheet.createRow((short) 1);
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// Aqua background
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HSSFCellStyle style = wb.createCellStyle();
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style.setFillBackgroundColor(HSSFColor.AQUA.index);
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style.setFillPattern(HSSFCellStyle.BIG_SPOTS);
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HSSFCell cell = row.createCell((short) 1);
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cell.setCellValue("X");
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cell.setCellStyle(style);
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// Orange "foreground", foreground being the fill foreground not the font color.
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style = wb.createCellStyle();
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style.setFillForegroundColor(HSSFColor.ORANGE.index);
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style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
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cell = row.createCell((short) 2);
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cell.setCellValue("X");
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cell.setCellStyle(style);
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// Write the output to a file
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FileOutputStream fileOut = new FileOutputStream("workbook.xls");
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wb.write(fileOut);
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fileOut.close();
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</source>
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</section>
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<anchor id="MergedCells"/>
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<section title="Merging cells">
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<source>
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFSheet sheet = wb.createSheet("new sheet");
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HSSFRow row = sheet.createRow((short) 1);
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HSSFCell cell = row.createCell((short) 1);
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cell.setCellValue("This is a test of merging");
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sheet.addMergedRegion(new Region(1,(short)1,1,(short)2));
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// Write the output to a file
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FileOutputStream fileOut = new FileOutputStream("workbook.xls");
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wb.write(fileOut);
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fileOut.close();
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</source>
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</section>
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<anchor id="WorkingWithFonts"/>
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<section title="Working with fonts">
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<source>
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFSheet sheet = wb.createSheet("new sheet");
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// Create a row and put some cells in it. Rows are 0 based.
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HSSFRow row = sheet.createRow((short) 1);
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// Create a new font and alter it.
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HSSFFont font = wb.createFont();
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font.setFontHeightInPoints((short)24);
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font.setFontName("Courier New");
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font.setItalic(true);
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font.setStrikeout(true);
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// Fonts are set into a style so create a new one to use.
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HSSFCellStyle style = wb.createCellStyle();
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style.setFont(font);
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// Create a cell and put a value in it.
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HSSFCell cell = row.createCell((short) 1);
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cell.setCellValue("This is a test of fonts");
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cell.setCellStyle(style);
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// Write the output to a file
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FileOutputStream fileOut = new FileOutputStream("workbook.xls");
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wb.write(fileOut);
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fileOut.close();
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</source>
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</section>
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<anchor id="CustomColors"/>
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<section title="Custom colors">
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<source>
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFSheet sheet = wb.createSheet();
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HSSFRow row = sheet.createRow((short) 0);
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HSSFCell cell = row.createCell((short) 0);
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cell.setCellValue("Default Palette");
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//apply some colors from the standard palette,
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// as in the previous examples.
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//we'll use red text on a lime background
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HSSFCellStyle style = wb.createCellStyle();
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style.setFillForegroundColor(HSSFColor.LIME.index);
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style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
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HSSFFont font = wb.createFont();
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font.setColor(HSSFColor.RED.index);
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style.setFont(font);
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cell.setCellStyle(style);
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//save with the default palette
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FileOutputStream out = new FileOutputStream("default_palette.xls");
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wb.write(out);
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out.close();
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//now, let's replace RED and LIME in the palette
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// with a more attractive combination
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// (lovingly borrowed from freebsd.org)
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cell.setCellValue("Modified Palette");
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//creating a custom palette for the workbook
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HSSFPalette palette = wb.getCustomPalette();
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//replacing the standard red with freebsd.org red
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palette.setColorAtIndex(HSSFColor.RED.index,
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(byte) 153, //RGB red (0-255)
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(byte) 0, //RGB green
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(byte) 0 //RGB blue
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);
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//replacing lime with freebsd.org gold
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palette.setColorAtIndex(HSSFColor.LIME.index, (byte) 255, (byte) 204, (byte) 102);
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//save with the modified palette
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// note that wherever we have previously used RED or LIME, the
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// new colors magically appear
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out = new FileOutputStream("modified_palette.xls");
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wb.write(out);
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out.close();
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</source>
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</section>
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<anchor id="ReadWriteWorkbook"/>
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<section title="Reading and Rewriting Workbooks">
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<source>
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POIFSFileSystem fs =
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new POIFSFileSystem(new FileInputStream("workbook.xls"));
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HSSFWorkbook wb = new HSSFWorkbook(fs);
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HSSFSheet sheet = wb.getSheetAt(0);
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HSSFRow row = sheet.getRow(2);
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HSSFCell cell = row.getCell((short)3);
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if (cell == null)
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cell = row.createCell((short)3);
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cell.setCellType(HSSFCell.CELL_TYPE_STRING);
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cell.setCellValue("a test");
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// Write the output to a file
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FileOutputStream fileOut = new FileOutputStream("workbook.xls");
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wb.write(fileOut);
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fileOut.close();
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</source>
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</section>
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<anchor id="NewLinesInCells"/>
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<section title="Using newlines in cells">
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<source>
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFSheet s = wb.createSheet();
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HSSFRow r = null;
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HSSFCell c = null;
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HSSFCellStyle cs = wb.createCellStyle();
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HSSFFont f = wb.createFont();
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HSSFFont f2 = wb.createFont();
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cs = wb.createCellStyle();
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cs.setFont( f2 );
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//Word Wrap MUST be turned on
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cs.setWrapText( true );
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r = s.createRow( (short) 2 );
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r.setHeight( (short) 0x349 );
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c = r.createCell( (short) 2 );
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c.setCellType( HSSFCell.CELL_TYPE_STRING );
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c.setCellValue( "Use \n with word wrap on to create a new line" );
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c.setCellStyle( cs );
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s.setColumnWidth( (short) 2, (short) ( ( 50 * 8 ) / ( (double) 1 / 20 ) ) );
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FileOutputStream fileOut = new FileOutputStream( "workbook.xls" );
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wb.write( fileOut );
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fileOut.close();</source>
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</section>
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<anchor id="DataFormats"/>
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<section title="Data Formats">
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<source>
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFSheet sheet = wb.createSheet("format sheet");
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HSSFCellStyle style;
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HSSFDataFormat format = wb.createDataFormat();
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HSSFRow row;
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HSSFCell cell;
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short rowNum = 0;
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short colNum = 0;
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row = sheet.createRow(rowNum++);
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cell = row.createCell(colNum);
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cell.setCellValue(11111.25);
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style = wb.createCellStyle();
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style.setDataFormat(format.getFormat("0.0"));
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cell.setCellStyle(style);
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row = sheet.createRow(rowNum++);
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cell = row.createCell(colNum);
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cell.setCellValue(11111.25);
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style = wb.createCellStyle();
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style.setDataFormat(format.getFormat("#,##0.0000"));
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cell.setCellStyle(style);
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FileOutputStream fileOut = new FileOutputStream("workbook.xls");
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wb.write(fileOut);
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fileOut.close();
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</source>
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</section>
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<anchor id="PrintArea"/>
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<section title="Set Print Area to One Page">
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<source>
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFSheet sheet = wb.createSheet("format sheet");
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HSSFPrintSetup ps = sheet.getPrintSetup()
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sheet.setAutobreaks(true)
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ps.setFitHeight((short)1);
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ps.setFitWidth((short)1);
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// Create various cells and rows for spreadsheet.
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FileOutputStream fileOut = new FileOutputStream("workbook.xls");
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wb.write(fileOut);
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fileOut.close();
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</source>
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</section>
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<anchor id="FooterPageNumbers"/>
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<section title="Set Page Numbers on Footer">
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<source>
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFSheet sheet = wb.createSheet("format sheet");
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HSSFFooter footer = sheet.getFooter()
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footer.setRight( "Page " + HSSFFooter.page() + " of " + HSSFFooter.numPages() );
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// Create various cells and rows for spreadsheet.
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FileOutputStream fileOut = new FileOutputStream("workbook.xls");
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wb.write(fileOut);
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fileOut.close();
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</source>
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</section>
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<anchor id="Convience Functions"/>
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<section title="Using the Convience Functions">
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<p>
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The convience functions live in contrib and provide
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utility features such as setting borders around merged
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regions and changing style attributes without explicitly
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creating new styles.
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</p>
|
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<source>
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFSheet sheet1 = wb.createSheet( "new sheet" );
|
|
|
|
// Create a merged region
|
|
HSSFRow row = sheet1.createRow( (short) 1 );
|
|
HSSFRow row2 = sheet1.createRow( (short) 2 );
|
|
HSSFCell cell = row.createCell( (short) 1 );
|
|
cell.setCellValue( "This is a test of merging" );
|
|
Region region = new Region( 1, (short) 1, 4, (short) 4 );
|
|
sheet1.addMergedRegion( region );
|
|
|
|
// Set the border and border colors.
|
|
final short borderMediumDashed = HSSFCellStyle.BORDER_MEDIUM_DASHED;
|
|
HSSFRegionUtil.setBorderBottom( borderMediumDashed,
|
|
region, sheet1, wb );
|
|
HSSFRegionUtil.setBorderTop( borderMediumDashed,
|
|
region, sheet1, wb );
|
|
HSSFRegionUtil.setBorderLeft( borderMediumDashed,
|
|
region, sheet1, wb );
|
|
HSSFRegionUtil.setBorderRight( borderMediumDashed,
|
|
region, sheet1, wb );
|
|
HSSFRegionUtil.setBottomBorderColor(HSSFColor.AQUA.index, region, sheet1, wb);
|
|
HSSFRegionUtil.setTopBorderColor(HSSFColor.AQUA.index, region, sheet1, wb);
|
|
HSSFRegionUtil.setLeftBorderColor(HSSFColor.AQUA.index, region, sheet1, wb);
|
|
HSSFRegionUtil.setRightBorderColor(HSSFColor.AQUA.index, region, sheet1, wb);
|
|
|
|
// Shows some usages of HSSFCellUtil
|
|
HSSFCellStyle style = wb.createCellStyle();
|
|
style.setIndention((short)4);
|
|
HSSFCellUtil.createCell(row, 8, "This is the value of the cell", style);
|
|
HSSFCell cell2 = HSSFCellUtil.createCell( row2, 8, "This is the value of the cell");
|
|
HSSFCellUtil.setAlignment(cell2, wb, HSSFCellStyle.ALIGN_CENTER);
|
|
|
|
// Write out the workbook
|
|
FileOutputStream fileOut = new FileOutputStream( "workbook.xls" );
|
|
wb.write( fileOut );
|
|
fileOut.close();
|
|
</source>
|
|
</section>
|
|
|
|
<anchor id="ShiftRows"/>
|
|
<section title="Shift rows up or down on a sheet">
|
|
<source>
|
|
HSSFWorkbook wb = new HSSFWorkbook();
|
|
HSSFSheet sheet = wb.createSheet("row sheet");
|
|
|
|
// Create various cells and rows for spreadsheet.
|
|
|
|
// Shift rows 6 - 11 on the spreadsheet to the top (rows 0 - 5)
|
|
sheet.shiftRows(5, 10, -5);
|
|
|
|
FileOutputStream fileOut = new FileOutputStream("workbook.xls");
|
|
wb.write(fileOut);
|
|
fileOut.close();
|
|
</source>
|
|
</section>
|
|
|
|
<anchor id="SelectSheet"/>
|
|
<section title="Set a sheet as selected">
|
|
<source>
|
|
HSSFWorkbook wb = new HSSFWorkbook();
|
|
HSSFSheet sheet = wb.createSheet("row sheet");
|
|
sheet.setSelected(true);
|
|
|
|
// Create various cells and rows for spreadsheet.
|
|
|
|
FileOutputStream fileOut = new FileOutputStream("workbook.xls");
|
|
wb.write(fileOut);
|
|
fileOut.close();
|
|
</source>
|
|
</section>
|
|
</section>
|
|
</section>
|
|
</body>
|
|
</document>
|