Making Excel format reports in Java

Excel
try{         getdbconnection ();          pstmt = conn.preparestatement (strSQL);         ret = Pstmt.executequery ();         file Tempfile=new file (filename);          try{         Writableworkbook Workbook = Workbook.createworkbook (tempfile);         WritableSheet sheet = Workbook.createsheet ("Sheet1", 0);         Label l=null;          Jxl.write.Number n=null;         Jxl.write.DateTime d=null;         Writablefont HeaderFont = new Writablefont (Writablefont.arial,12,writablefont.bold,false, Underlinestyle.no_underline,jxl.format.colour.blue) ;          Writablecellformat Headerformat = new Writablecellformat (HeaderFont);

Writablefont Titlefont = new Writablefont (Writablefont.arial,10,writablefont.no_bold,false, UnderlineStyle.NO_         underline,jxl.format.colour.red); Writablecellformat TitleFormat = new Writablecellformat (Titlefont);

Writablefont Detfont = new Writablefont (Writablefont.arial,10,writablefont.no_bold,false, UnderlineStyle.NO_         Underline,jxl.format.colour.black); Writablecellformat Detformat = new Writablecellformat (Detfont);

NumberFormat nf=new NumberFormat ("0.00000"); Writablecellformat Priceformat = new Writablecellformat (Detfont, NF);

DateFormat df=new DateFormat ("Yyyy-mm-dd"); Writablecellformat DateFormat = new Writablecellformat (Detfont, DF);

         l=new Label (2,0, "", Headerformat);          Sheet.addcell (l);         int inttitle = title.length;          for (int i=0;i<inttitle;i++)           {           l=new Label (I,2,title[i], TitleFormat);           Sheet.addcell (l);         }        int k = 0;         while (Ret.next ())                  {                   k++;                   FOR (int j=1;j<inttitle;j++)                          {               l=new Label (J-1,k+3,ret.getstring (j), Detformat);               Sheet.addcell (L);                          // Sheet.setcolumnview (j,30);                        }                }         workbook.write ();          workbook.close ();        } catch (exception e) {}   }   catch (SQLException ae) {        throw new ApplicationException ("Query database operation failed while creating Excel!") +              "error message:" +strsql + ", exception information is: \ n" + ae.getmessage ());    } finally {    & nbsp;           Closeresultset (ret);                 closestatement (pstmt);                 CloseConnection ();                   }}