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Apache POI is a powerful Java library to work with different Microsoft Office file formats such as Excel, Power point, Visio, MS Word etc.

The name POI was originally an acronym for Poor Obfuscation Implementation, referring humorously to the fact that the file formats seemed to be deliberately obfuscated, but poorly, since they were successfully reverse-engineered. File Input Stream file = new File Input Stream(new File("C:\test.xls")); //Get the workbook instance for XLS file HSSFWorkbook workbook = new HSSFWorkbook(file); //Get first sheet from the workbook HSSFSheet sheet = Sheet At(0); //Get iterator to all the rows in current sheet Iterator Notice how each class in POI library starts with HSSF prefix!

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File Input Stream file = new File Input Stream(new File("C:\\test.xlsx")); //Get the workbook instance for XLS file XSSFWorkbook workbook = new XSSFWorkbook (file); //Get first sheet from the workbook XSSFSheet sheet = Sheet At(0); //Get iterator to all the rows in current sheet Iteratorimport org.hssf.usermodel. Open the excel using different API that we discussed above and set the cell’s value.

HSSFWorkbook workbook = new HSSFWorkbook(); HSSFSheet sheet = workbook.create Sheet("Sample sheet"); //Create a new row in current sheet Row row = sheet.create Row(0); //Create a new cell in current row Cell cell = row.create Cell(0); //Set value to new value Cell Value("Blahblah"); Updating an existing excel file is straight forward.

This will provide a little bit different solution because it will download the Oracle JRE tarball to a previously configured directory and generate a DEB package from it.

That way you won't depend on somebody else packing the JRE, you will do it yourself (don't worry, it will be a automatic process).

Offline installation requires you to download an executable file available at the manual Java download page, which includes all the files needed for the complete installation at the user's discretion.

There is no need to remain connected to the Internet during the installation.

For Windows XP and Windows 2000 installations use the directories listed below to locate the extracted MSI file.

Windows XP As you can see below the latest Java MSI and CAB files have been extracted to this directory.

If you are using Configuration Manager 2012, creating Applications is a fairly simple process using the vendor supplied MSI package. By default the Java website has you downloading an . In this case the latest version was Java 7.0_40 as you can see above.

Obviously you have to replace User Name in the path with your actual user name.

The "Status" column will then change from "Not Processed" to "Processed." Similar to the way you watch multiple files attach in an email.

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