ApachePOI and TestNG - apache-poi

Question

Issues:-
The dataprovider is directly going to exception block
How to return value of cell from data provider to #Test method in order to achieve parameterisation
#DataProvider (name = "DP1")
public void getData() throws IOException {
try
{
FileInputStream file = new FileInputStream(new File("C:\\Users\\kk\\workspace\\K\\TestNG_Tutorial\\src\\Book1.xls"));
System.out.println(file);
//Get the workbook instance for XLS file
HSSFWorkbook workbook = new HSSFWorkbook(file);
//Get first sheet from the workbook
HSSFSheet sheet = workbook.getSheetAt(0);
//Get iterator to all the rows in current sheet
java.util.Iterator<Row> rowIterator = sheet.iterator();
while(rowIterator.hasNext()) {
Row row = rowIterator.next();
//System.out.println("Row is" +row);
java.util.Iterator<Cell> cellIterator = row.cellIterator();
while(cellIterator.hasNext()){
Cell cell = cellIterator.next();
switch(cell.getCellType()) {
case Cell.CELL_TYPE_BOOLEAN:
System.out.print(cell.getBooleanCellValue() + "\t\t");
break;
case Cell.CELL_TYPE_NUMERIC:
System.out.print(cell.getNumericCellValue() + "\t\t");
break;
case Cell.CELL_TYPE_STRING:
System.out.print(cell.getStringCellValue() + "\t\t");
break;
}
}
System.out.println("");
}
file.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
#Test(dataProvider = "DP1")
public void LoginTest() {
driver.findElement(By.id("username")).sendKeys("A");
}