mirror of https://github.com/apache/poi.git
Reformatted so it fits on a page. I'll
git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@352093 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
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@ -95,98 +95,135 @@ does not close it for you.
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</p>
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</p>
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<p>Here is some example code (excerpted and adapted from
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<p>Here is some example code (excerpted and adapted from
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org.apache.poi.hssf.dev.HSSF test class):</p>
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org.apache.poi.hssf.dev.HSSF test class):</p>
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<source> FileOutputStream out = new FileOutputStream("/home/me/myfile.xls"); // create a new file
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<source> // create a new file
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HSSFWorkbook wb = new HSSFWorkbook(); // create a new workbook
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FileOutputStream out = new FileOutputStream("/home/me/myfile.xls");
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HSSFSheet s = wb.createSheet(); // create a new sheet
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// create a new workbook
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HSSFRow r = null; // declare a row object reference
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HSSFWorkbook wb = new HSSFWorkbook();
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HSSFCell c = null; // declare a cell object reference
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// create a new sheet
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HSSFCellStyle cs = wb.createCellStyle(); // create 3 cell styles
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HSSFSheet s = wb.createSheet();
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HSSFCellStyle cs2 = wb.createCellStyle();
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// declare a row object reference
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HSSFCellStyle cs3 = wb.createCellStyle();
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HSSFRow r = null;
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HSSFFont f = wb.createFont(); // create 2 fonts objects
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// declare a cell object reference
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HSSFFont f2 = wb.createFont();
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HSSFCell c = null;
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// create 3 cell styles
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f.setFontHeightInPoints((short)12); //set font 1 to 12 point type
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HSSFCellStyle cs = wb.createCellStyle();
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f.setColor((short)0xA); //make it red
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HSSFCellStyle cs2 = wb.createCellStyle();
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f.setBoldweight(f.BOLDWEIGHT_BOLD); // make it bold
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HSSFCellStyle cs3 = wb.createCellStyle();
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//arial is the default font
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// create 2 fonts objects
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HSSFFont f = wb.createFont();
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f2.setFontHeightInPoints((short)10); //set font 2 to 10 point type
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HSSFFont f2 = wb.createFont();
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f2.setColor((short)0xf); //make it the color at palette index 0xf (white)
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f2.setBoldweight(f2.BOLDWEIGHT_BOLD); //make it bold
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cs.setFont(f); //set cell stlye
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cs.setDataFormat(HSSFDataFormat.getFormat("($#,##0_);[Red]($#,##0)"));//set the cell format see HSSFDataFromat for a full list
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cs2.setBorderBottom(cs2.BORDER_THIN); //set a thin border
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cs2.setFillPattern((short)1); //fill w fg fill color
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cs2.setFillForegroundColor((short)0xA); // set foreground fill to red
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cs2.setFont(f2); // set the font
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//set font 1 to 12 point type
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f.setFontHeightInPoints((short)12);
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//make it red
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f.setColor((short)0xA);
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// make it bold
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//arial is the default font
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f.setBoldweight(f.BOLDWEIGHT_BOLD);
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wb.setSheetName(0,"HSSF Test"); // set the sheet name to HSSF Test
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//set font 2 to 10 point type
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for (rownum = (short)0; rownum < 300; rownum++) // create a sheet with 300 rows (0-299)
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f2.setFontHeightInPoints((short)10);
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{
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//make it the color at palette index 0xf (white)
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r = s.createRow(rownum); // create a row
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f2.setColor((short)0xf);
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if ( (rownum % 2) == 0) { // on every other row
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//make it bold
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r.setHeight((short)0x249); // make the row height bigger (in twips - 1/20 of a point)
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f2.setBoldweight(f2.BOLDWEIGHT_BOLD);
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//set cell stlye
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cs.setFont(f);
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//set the cell format see HSSFDataFromat for a full list
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cs.setDataFormat(HSSFDataFormat.getFormat("($#,##0_);[Red]($#,##0)"));
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//set a thin border
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cs2.setBorderBottom(cs2.BORDER_THIN);
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//fill w fg fill color
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cs2.setFillPattern((short)1);
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// set foreground fill to red
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cs2.setFillForegroundColor((short)0xA);
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// set the font
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cs2.setFont(f2);
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// set the sheet name to HSSF Test
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wb.setSheetName(0,"HSSF Test");
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// create a sheet with 300 rows (0-299)
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for (rownum = (short)0; rownum < 300; rownum++)
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{
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// create a row
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r = s.createRow(rownum);
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// on every other row
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if ( (rownum % 2) == 0) {
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// make the row height bigger (in twips - 1/20 of a point)
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r.setHeight((short)0x249);
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}
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}
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//r.setRowNum(( short ) rownum);
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//r.setRowNum(( short ) rownum);
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for (short cellnum = (short)0; cellnum < 50; cellnum += 2) // create 50 cells (0-49) (the += 2 becomes apparent later
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// create 50 cells (0-49) (the += 2 becomes apparent later
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for (short cellnum = (short)0; cellnum < 50; cellnum += 2)
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{
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{
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c = r.createCell(cellnum,HSSFCell.CELL_TYPE_NUMERIC); // create a numeric cell
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// create a numeric cell
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c.setCellValue(rownum * 10000 + cellnum // do some goofy math to demonstrate decimals
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c = r.createCell(cellnum,HSSFCell.CELL_TYPE_NUMERIC);
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// do some goofy math to demonstrate decimals
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c.setCellValue(rownum * 10000 + cellnum
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+ ((( double ) rownum / 1000)
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+ ((( double ) rownum / 1000)
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+ (( double ) cellnum / 10000)));
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+ (( double ) cellnum / 10000)));
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if ( (rownum % 2) == 0) { // on every other row
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// on every other row
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c.setCellStyle(cs); // set this cell to the first cell style we defined
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if ( (rownum % 2) == 0) {
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// set this cell to the first cell style we defined
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c.setCellStyle(cs);
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}
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}
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// create a string cell (see why += 2 in the
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c = r.createCell((short)(cellnum+1),HSSFCell.CELL_TYPE_STRING);
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c = r.createCell((short)(cellnum+1),HSSFCell.CELL_TYPE_STRING); // create a string cell (see why += 2 in the
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// set the cell's string value to "TEST"
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// for loop (we want 2 cells per loop)
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c.setCellValue("TEST");
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c.setCellValue("TEST"); // set the cell's string value to "TEST"
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// make this column a bit wider
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s.setColumnWidth((short)(cellnum+1), (short)((50*8) / ((double)1/20)) ); // make this column a bit wider
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s.setColumnWidth((short)(cellnum+1), (short)((50*8) / ((double)1/20)) );
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if ( (rownum % 2) == 0) { // on every other row
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// on every other row
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c.setCellStyle(cs2); // set this to the white on red cell style
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if ( (rownum % 2) == 0) {
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} // we defined above
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// set this to the white on red cell style
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// we defined above
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}
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c.setCellStyle(cs2);
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}
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}
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}
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}
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//draw a thick black border on the row at the bottom using BLANKS
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//draw a thick black border on the row at the bottom using BLANKS
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rownum++; // advance 2 rows
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// advance 2 rows
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rownum++;
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rownum++;
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rownum++;
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r = s.createRow(rownum);
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r = s.createRow(rownum);
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// define the third style to be the default
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// except with a thick black border at the bottom
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cs3.setBorderBottom(cs3.BORDER_THICK); // define the third style to be the default
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cs3.setBorderBottom(cs3.BORDER_THICK);
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// except with a thick black border at the bottom
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//create 50 cells
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for (short cellnum = (short)0; cellnum < 50; cellnum++) { //create 50 cells
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for (short cellnum = (short)0; cellnum < 50; cellnum++) {
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c = r.createCell(cellnum,HSSFCell.CELL_TYPE_BLANK); //create a blank type cell (no value)
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//create a blank type cell (no value)
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c.setCellStyle(cs3); // set it to the thick black border style
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c = r.createCell(cellnum,HSSFCell.CELL_TYPE_BLANK);
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// set it to the thick black border style
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c.setCellStyle(cs3);
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}
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}
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//end draw thick black border
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//end draw thick black border
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//demonstrate adding/naming and deleting a sheet
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// demonstrate adding/naming and deleting a sheet
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// create a sheet, set its title then delete it
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// create a sheet, set its title then delete it
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s = wb.createSheet();
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s = wb.createSheet();
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wb.setSheetName(1,"DeletedSheet");
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wb.setSheetName(1,"DeletedSheet");
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wb.removeSheetAt(1);
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wb.removeSheetAt(1);
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//end deleted sheet
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//end deleted sheet
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// write the workbook to the output stream
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wb.write(out); // write the workbook to the output stream
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// close our file (don't blow out our file handles
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out.close(); // close our file (don't blow out our file handles
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wb.write(out);
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out.close();
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</source>
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</source>
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</s4>
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</s4>
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<s4 title="Reading or modifying an existing file">
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<s4 title="Reading or modifying an existing file">
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@ -205,8 +242,7 @@ method (sheet.removeRow(hssfrow)) and create objects just as you
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would if creating a new xls. When you are done modifying cells just
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would if creating a new xls. When you are done modifying cells just
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call workbook.write(outputstream) just as you did above.</p>
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call workbook.write(outputstream) just as you did above.</p>
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<p>An example of this can be seen in
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<p>An example of this can be seen in
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org.apache.poi.hssf.dev.HSSF. See
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<link href="http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/*checkout*/poi/poi/production/src/net/sourceforge/poi/hssf/dev/HSSF.java?rev=HEAD&content-type=text/plain">org.apache.poi.hssf.dev.HSSF</link>.</p>
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<link href="http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/*checkout*/poi/poi/production/src/net/sourceforge/poi/hssf/dev/HSSF.java?rev=HEAD&content-type=text/plain">http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/*checkout*/poi/poi/production/src/net/sourceforge/poi/hssf/dev/HSSF.java?rev=HEAD&content-type=text/plain</link>.</p>
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</s4> </s3>
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</s4> </s3>
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<s3 title="Event API">
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<s3 title="Event API">
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@ -246,77 +282,117 @@ registered to listen for until the file has been completely read.
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<p>A code excerpt from org.apache.poi.hssf.dev.EFHSSF (which is
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<p>A code excerpt from org.apache.poi.hssf.dev.EFHSSF (which is
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in CVS or the source distribution) is reprinted below with excessive
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in CVS or the source distribution) is reprinted below with excessive
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comments:</p>
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comments:</p>
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<source>class EFHSSFListener implements HSSFListener { //this non-public class implements the required interface
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<source>
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EFHSSF efhssf; // we construct it with a copy of its container class...this is cheap but effective
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//this non-public class implements the required interface
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public EFHSSFListener(EFHSSF efhssf) {
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// we construct it with a copy of its container class...this is cheap but effective
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class EFHSSFListener implements HSSFListener {
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EFHSSF efhssf;
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public EFHSSFListener(EFHSSF efhssf) {
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this.efhssf = efhssf;
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this.efhssf = efhssf;
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}
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}
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public void processRecord(Record record) { // we just use this as an adapter so we pass the record to the method in the container class
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// we just use this as an adapter so we pass the record to the method in the container class
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public void processRecord(Record record) {
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efhssf.recordHandler(record);
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efhssf.recordHandler(record);
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}
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}
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}
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}
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//here is an excerpt of the main line execution code from EFHSSF
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//here is an excerpt of the main line execution code from EFHSSF
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public void run() throws IOException {
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public void run() throws IOException {
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FileInputStream fin = new FileInputStream(infile); // create a new file input stream with the input file specified
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// create a new file input stream with the input file specified
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// at the command line
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// at the command line
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Filesystem poifs = new Filesystem(fin); // create a new org.apache.poi.poifs.filesystem.Filesystem
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FileInputStream fin = new FileInputStream(infile);
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InputStream din = poifs.createDocumentInputStream("Workbook"); // get the Workbook (excel part) stream in a InputStream
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// create a new org.apache.poi.poifs.filesystem.Filesystem
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HSSFRequest req = new HSSFRequest(); // construct out HSSFRequest object
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Filesystem poifs = new Filesystem(fin);
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req.addListenerForAllRecords(new EFHSSFListener(this)); // lazy listen for ALL records with the listener shown above
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// get the Workbook (excel part) stream in a InputStream
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HSSFEventFactory factory = new HSSFEventFactory(); // create our event factory
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InputStream din = poifs.createDocumentInputStream("Workbook");
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factory.processEvents(req,din); // process our events based on the document input stream
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// construct out HSSFRequest object
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fin.close(); // once all the events are processed close our file input stream
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HSSFRequest req = new HSSFRequest();
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din.close(); // and our document input stream (don't want to leak these!)
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// lazy listen for ALL records with the listener shown above
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FileOutputStream fout = new FileOutputStream(outfile); // create a new output stream from filename specified at the command line
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req.addListenerForAllRecords(new EFHSSFListener(this));
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workbook.write(fout); // write the HSSFWorkbook (class member) we created out to the file.
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// create our event factory
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fout.close(); // close our file output stream
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HSSFEventFactory factory = new HSSFEventFactory();
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System.out.println("done."); // print done. Go enjoy your copy of the file.
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// process our events based on the document input stream
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factory.processEvents(req,din);
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// once all the events are processed close our file input stream
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fin.close();
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// and our document input stream (don't want to leak these!)
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din.close();
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// create a new output stream from filename specified at the command line
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FileOutputStream fout = new FileOutputStream(outfile);
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// write the HSSFWorkbook (class member) we created out to the file.
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workbook.write(fout);
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// close our file output stream
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fout.close();
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// print done. Go enjoy your copy of the file.
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System.out.println("done.");
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}
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}
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//here is an excerpt of the recordHander called from our listener.
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//here is an excerpt of the recordHander called from our listener.
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public void recordHandler(Record record) { // the record handler in the container class is intent on just rewriting the fire
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// the record handler in the container class is intent on just rewriting the file
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HSSFRow row = null;
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public void recordHandler(Record record) {
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HSSFRow row = null;
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HSSFCell cell = null;
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HSSFCell cell = null;
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int sheetnum = -1;
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int sheetnum = -1;
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switch (record.getSid()) {
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switch (record.getSid()) {
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case BOFRecord.sid: // the BOFRecord can represent either the beginning of a sheet or the workbook
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// the BOFRecord can represent either the beginning of a sheet or the workbook
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case BOFRecord.sid:
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BOFRecord bof = (BOFRecord) record;
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BOFRecord bof = (BOFRecord) record;
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if (bof.getType() == bof.TYPE_WORKBOOK) {
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if (bof.getType() == bof.TYPE_WORKBOOK) {
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workbook = new HSSFWorkbook(); //if its the workbook then create a new HSSFWorkbook
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//if its the workbook then create a new HSSFWorkbook
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} else if (bof.getType() == bof.TYPE_WORKSHEET) { // assigned to the class level member
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workbook = new HSSFWorkbook();
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// assigned to the class level member
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} else if (bof.getType() == bof.TYPE_WORKSHEET) {
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sheetnum++;
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sheetnum++;
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cursheet = workbook.getSheetAt(sheetnum); // otherwise if its a sheet increment the sheetnum index
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// otherwise if its a sheet increment the sheetnum index
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} // get the sheet at that index and assign it to method variable
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cursheet = workbook.getSheetAt(sheetnum);
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break; // cursheet (the sheet was created when the BoundSheetRecord record occurred
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}
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case BoundSheetRecord.sid:
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BoundSheetRecord bsr = (BoundSheetRecord) record; // when we find a boundsheet record create a new sheet in the workbook and
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workbook.createSheet(bsr.getSheetname()); // assign it the name specified in this record.
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break;
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break;
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case RowRecord.sid: // if this is a row record add the row to the current sheet
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// get the sheet at that index and assign it to method variable
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// cursheet (the sheet was created when the BoundSheetRecord record occurred
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case BoundSheetRecord.sid:
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// when we find a boundsheet record create a new sheet in the workbook and
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BoundSheetRecord bsr = (BoundSheetRecord) record;
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// assign it the name specified in this record.
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workbook.createSheet(bsr.getSheetname());
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break;
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// if this is a row record add the row to the current sheet
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case RowRecord.sid:
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RowRecord rowrec = (RowRecord) record;
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RowRecord rowrec = (RowRecord) record;
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cursheet.createRow(rowrec.getRowNumber()); // assign our row the rownumber specified in the Row Record
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// assign our row the rownumber specified in the Row Record
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cursheet.createRow(rowrec.getRowNumber());
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break;
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break;
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case NumberRecord.sid: // if this is a NumberRecord (RKRecord, MulRKRecord get converted to Number
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// if this is a NumberRecord (RKRecord, MulRKRecord get converted to Number
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NumberRecord numrec = (NumberRecord) record; // records) then get the row specified in the number record from the current
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// records) then get the row specified in the number record from the current
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row = cursheet.getRow(numrec.getRow()); // sheet. With this instance of HSSFRow create a new HSSFCell with the column
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// sheet. With this instance of HSSFRow create a new HSSFCell with the column
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cell = row.createCell(numrec.getColumn(),HSSFCell.CELL_TYPE_NUMERIC); //number specified in the record and assign it type NUMERIC
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// number specified in the record and assign it type NUMERIC
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cell.setCellValue(numrec.getValue()); // set the HSSFCell's value to the value stored in the NumberRecord
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case NumberRecord.sid:
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NumberRecord numrec = (NumberRecord) record;
|
||||||
|
row = cursheet.getRow(numrec.getRow());
|
||||||
|
cell = row.createCell(numrec.getColumn(),HSSFCell.CELL_TYPE_NUMERIC);
|
||||||
|
// set the HSSFCell's value to the value stored in the NumberRecord
|
||||||
|
cell.setCellValue(numrec.getValue());
|
||||||
break;
|
break;
|
||||||
case SSTRecord.sid: // if this is the SSTRecord (occurs once in the workbook) then add all of its
|
// if this is the SSTRecord (occurs once in the workbook) then add all of its
|
||||||
SSTRecord sstrec = (SSTRecord) record; // strings to our workbook. We'll look them up later when we add LABELSST records.
|
// strings to our workbook. We'll look them up later when we add LABELSST records.
|
||||||
|
case SSTRecord.sid:
|
||||||
|
SSTRecord sstrec = (SSTRecord) record;
|
||||||
for (int k = 0; k < sstrec.getNumUniqueStrings(); k++) {
|
for (int k = 0; k < sstrec.getNumUniqueStrings(); k++) {
|
||||||
workbook.addSSTString(sstrec.getString(k));
|
workbook.addSSTString(sstrec.getString(k));
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
case LabelSSTRecord.sid: // if this is a LabelSSTRecord then get the row specified in the LabelSSTRecord from
|
// if this is a LabelSSTRecord then get the row specified in the LabelSSTRecord from
|
||||||
LabelSSTRecord lrec = (LabelSSTRecord) record; // the current sheet. With this instance of HSSFRow create a new HSSFCell with the
|
// the current sheet. With this instance of HSSFRow create a new HSSFCell with the
|
||||||
row = cursheet.getRow(lrec.getRow()); // column nubmer specified in the record and set the type to type STRING.
|
// column nubmer specified in the record and set the type to type STRING.
|
||||||
|
case LabelSSTRecord.sid:
|
||||||
|
LabelSSTRecord lrec = (LabelSSTRecord) record;
|
||||||
|
row = cursheet.getRow(lrec.getRow());
|
||||||
cell = row.createCell(lrec.getColumn(),HSSFCell.CELL_TYPE_STRING);
|
cell = row.createCell(lrec.getColumn(),HSSFCell.CELL_TYPE_STRING);
|
||||||
cell.setCellValue(workbook.getSSTString(lrec.getSSTIndex())); //set the cells value to the string in our workbook object (added in the case
|
//set the cells value to the string in our workbook object (added in the case
|
||||||
break; //above) at the index specified by the LabelSSTRecord.
|
//above) at the index specified by the LabelSSTRecord.
|
||||||
|
cell.setCellValue(workbook.getSSTString(lrec.getSSTIndex()));
|
||||||
|
break;
|
||||||
}
|
}
|
||||||
}</source>
|
}</source>
|
||||||
</s3>
|
</s3>
|
||||||
|
@ -356,7 +432,9 @@ export CLASSPATH=$CLASSPATH:$HSSFDIR/hssf.jar:$HSSFDIR/poi-poifs.jar:$HSSFDIR/po
|
||||||
<ul>
|
<ul>
|
||||||
<li>Type:
|
<li>Type:
|
||||||
<code>java org.apache.poi.hssf.dev.HSSF ~/input.xls output.xls
|
<code>java org.apache.poi.hssf.dev.HSSF ~/input.xls output.xls
|
||||||
This is the read/write/modify test. It reads in the spreadsheet, modifies a cell, and writes it back out. Failing this test is not necessarily a bad thing. If HSSF tries to modify a non-existant sheet then this will most likely fail. No big deal. </code></li>
|
This is the read/write/modify test. It reads in the spreadsheet, modifies a cell, and writes it back out.
|
||||||
|
Failing this test is not necessarily a bad thing. If HSSF tries to modify a non-existant sheet then this will
|
||||||
|
most likely fail. No big deal. </code></li>
|
||||||
</ul>
|
</ul>
|
||||||
</s3>
|
</s3>
|
||||||
<s3 title="HSSF Logging facility">
|
<s3 title="HSSF Logging facility">
|
||||||
|
@ -375,7 +453,7 @@ you get no logging. If the log configuration dictates the logging be
|
||||||
turned off, you get no logging.</p>
|
turned off, you get no logging.</p>
|
||||||
<p>Here is an example hssflog.properties (actually its not an example
|
<p>Here is an example hssflog.properties (actually its not an example
|
||||||
its mine):
|
its mine):
|
||||||
<code># Set root category priority to DEBUG and its only appender to A1.
|
<source># Set root category priority to DEBUG and its only appender to A1.
|
||||||
log4j.rootCategory=DEBUG, A1
|
log4j.rootCategory=DEBUG, A1
|
||||||
|
|
||||||
# A1 is set to be a ConsoleAppender.
|
# A1 is set to be a ConsoleAppender.
|
||||||
|
@ -386,7 +464,7 @@ log4j.appender.A1.layout=org.apache.log4j.PatternLayout
|
||||||
log4j.appender.A1.layout.ConversionPattern=%-4r [%t] %-5p %c %x - %m%n
|
log4j.appender.A1.layout.ConversionPattern=%-4r [%t] %-5p %c %x - %m%n
|
||||||
#uncomment below to change the level to WARN to disable debugging information. This effectively turns off logging.
|
#uncomment below to change the level to WARN to disable debugging information. This effectively turns off logging.
|
||||||
#the default level is DEBUG (and changing it to DEBUG is the basically the same thing as leaving it commented out).
|
#the default level is DEBUG (and changing it to DEBUG is the basically the same thing as leaving it commented out).
|
||||||
#log4j.category.org.apache.poi=WARN</code></p>
|
#log4j.category.org.apache.poi=WARN</source></p>
|
||||||
|
|
||||||
</s3>
|
</s3>
|
||||||
<s3 title="HSSF Developer's tools">
|
<s3 title="HSSF Developer's tools">
|
||||||
|
|
Loading…
Reference in New Issue