我的公式在poi HSSFCell setCellFormula中出了什么问题？

Question

I'm trying to set a simple formula in a spreadsheet that just subtracts the value of one cell from another. This is the relevant code snippet.

residentialCell.setCellType(HSSFCell.CELL_TYPE_FORMULA);
residentialCell.setCellFormula(formula);

This is the error I get when it runs:

Exception in thread "main" org.apache.poi.ss.formula.FormulaParseException: Unused input [E] after attempting to parse the formula [2E-8E]
    at org.apache.poi.ss.formula.FormulaParser.parse(FormulaParser.java:1573)
    at org.apache.poi.ss.formula.FormulaParser.parse(FormulaParser.java:176)
    at org.apache.poi.hssf.model.HSSFFormulaParser.parse(HSSFFormulaParser.java:72)

The formula should be "2E-8E" like it says. This seems simple enough, so sorry if I'm overlooking something that should be obvious to me. I've googled this for quite a while, and all the examples I've found seem to suggest that this should work. Any suggestions?

Thanks!

Answer 1

You have your row/column designation backwards. Assuming that it's part of a larger formula, your probably want "E2-E8" instead of "2E-8E" .

The error indicates that whatever parsed this part recognized "2E-8" as a valid floating-point literal number, with an extra "E" that can't be parsed as anything meaningful.