我如何防止所有单元格变色？

Question

My aim is to style the cells of a row with different properties. This is happening using a function styleExceptions(....). Most of the function works, however the problem i'm facing is that every cell in that row is being colored light green, which should not be happening. I am unable to figure out why this is happening. can anyone help.

public static void styleExceptions(CellStyle Exstyle, Font Exfont, Cell cell, AdditiveInformation obj){


    Exfont.setFontHeightInPoints((short) 10);
    Exfont.setFontName("Calibri");
    Exstyle.setFont(Exfont);
    Exstyle.setAlignment(CellStyle.ALIGN_CENTER);
    Exstyle.setVerticalAlignment(CellStyle.VERTICAL_CENTER);
    Exstyle.setBorderBottom(CellStyle.BORDER_DOUBLE);
    Exstyle.setBorderRight(CellStyle.BORDER_THIN);
    Exstyle.setBorderLeft(CellStyle.BORDER_THIN);


    Object result=cellToType(cell);


    if(result instanceof Double){

        if((Double)result==obj.get_xmonthreq() || (Double)result==obj.get_xmonthbalance() ||
                (Double)result==obj.get_xmonthendstock()){
                 Exstyle.setFillForegroundColor(IndexedColors.LIGHT_GREEN.getIndex());
                 Exstyle.setFillPattern(CellStyle.SOLID_FOREGROUND);
            }

            else if((Double)result==obj.get_ymonthreq() || (Double)result==obj.get_ymonthbalance() ||
                    (Double)result==obj.get_ymonthendstock()){

                 Exstyle.setFillForegroundColor(IndexedColors.LIGHT_ORANGE.getIndex());
                 Exstyle.setFillPattern(CellStyle.SOLID_FOREGROUND);
            }


            else if((Double)result==obj.get_zmonthreq() || (Double)result==obj.get_zmonthbalance() ||
                    (Double)result==obj.get_zmonthendstock()){

                 Exstyle.setFillForegroundColor(IndexedColors.LIGHT_CORNFLOWER_BLUE.getIndex());
                 Exstyle.setFillPattern(CellStyle.SOLID_FOREGROUND);
            }
    }

}

this is the cellToType(...) function:

private static Object cellToType(Cell cell){


        Object result=null;
        switch(cell.getCellType()){

        case Cell.CELL_TYPE_NUMERIC:
            if(DateUtil.isCellDateFormatted(cell)){
                result= cell.getDateCellValue();
            }
            else
            result=cell.getNumericCellValue();
            break;

        case Cell.CELL_TYPE_STRING: 
            result=cell.getStringCellValue();
            break; 

        case Cell.CELL_TYPE_BOOLEAN:
            result=cell.getBooleanCellValue();
            break;

        case Cell.CELL_TYPE_FORMULA:
            result=cell.getCellFormula();
            break;  

        default:
            throw new RuntimeException("There is no support for this type of cell");
        }
        return result;
    }

Answer 1

Problem is with the comparison you are doing.

(Double)result==obj.get_xmonthreq()

== is used to compare primitive values. You have two options :

1. Either Use doubleValue() method ((Double)result).doubleValue() == obj.get_xmonthreq().doubleValue()
2. Or Use equals() method ((Double)result).equals(obj.get_xmonthreq())

Hope this helps.