You should try reading the documentation that comes with Apache POI!
Taken straight from there:
// Decide which rows to process
int rowStart = Math.min(1, sheet.getFirstRowNum()); // 0 based not 1 based rows
int rowEnd = Math.max(12, sheet.getLastRowNum());
for (int rowNum = rowStart; rowNum < rowEnd; rowNum++) {
Row r = sheet.getRow(rowNum);
int lastColumn = Math.max(r.getLastCellNum(), MY_MINIMUM_COLUMN_COUNT);
for (int cn = 0; cn < lastColumn; cn++) {
Cell c = r.getCell(cn, Row.RETURN_BLANK_AS_NULL);
if (c == null) {
// The spreadsheet is empty in this cell
} else {
// Do something useful with the cell's contents
}
}
}
This bit of the docs covers how to get the value of a cell
solved Reading Specific rows of an excel [closed]