java - Creating a header with two line in excel file with apache POI -


how can header java code apache poi?

my excel file

usually merging 2 cells "projets" items.

see https://poi.apache.org/spreadsheet/quick-guide.html#mergedcells

basically define merged areas calls this

sheet.addmergedregion(new cellrangeaddress(         0, //first row (0-based)         0, //last row  (0-based)         0, //first column (0-based)         1  //last column  (0-based) ));

see setting value cells after merging in poi , merging cells in excel using apache poi more discussion around this.


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