excel - org.apache.poi writing xls formula of cells sum -

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i have write xls formula sum few cells 1 column. output in xls of formula that:

sum(f5;f9;f13;f16)

i've created formula in org.apache.poi library.

cell cell = rowsum.createcell(j); cell.setcelltype(cell.cell_type_numeric);  // column number (a or b) in excel use in formula string x = cellreference.convertnumtocolstring(j); cell.setcelltype(hssfcell.cell_type_formula);  // total sum row string totalsumformula = "sum(";  for(int s=0; s<sumrownumbers.size(); s++) { int tempsumrownumber = sumrownumbers.get(s); tempsumrownumber++;     totalsumformula += (x + tempsumrownumber);      if(s+1 != sumrownumbers.size()) {         totalsumformula += ";"; } else {     totalsumformula += ")";     }  }  cell.setcellformula(totalsumformula);

but unfortunatelly getting error cant understand:

[formulaparseexception: parse error near char 6 ';' in specified formula 'sum(f5;f9;f13;f16)'. expected ',' or ')']

can give me advise? how deal it?

hey found solution problem. i've should use seperator: "," instead of ";".

now works charm. proper generated formula in library:

sum(f5,f9,f13,f16)

which generates formula in excel file:

=sum(f5;f9;f13;f16)

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