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Read Excel horizontally with TestNG

I can read an Excel sheet vertically and the pass the values to TestNG dataprovide.
This makes TestNG executes each row.
public Object[][] getData(ITestContext context) throws IOException {
Object[][] obj = null;
try {
File file = new File(context.getCurrentXmlTest().getParameter("resource"));
FileInputStream fis = new FileInputStream(file);
XSSFWorkbook wb = new XSSFWorkbook(fis);
XSSFSheet sheet = wb.getSheetAt(0);
wb.close();
int rowCount= sheet.getLastRowNum();
int colCount = sheet.getRow(0).getLastCellNum();
obj = new Object[rowCount][1];
DataFormatter df = new DataFormatter();
for (int i = 0; i < rowCount; i++) {
Map<String, String> datamap= new HashMap<String, String>();
for (int j = 0; j < colCount; j++) {
String a = df.formatCellValue(sheet.getRow(0).getCell(j));
String b = df.formatCellValue(sheet.getRow(i+1).getCell(j));
if(!b.equals(""))
datamap.put(a, b);
if(b.equals("[PWD]")) {
b=PropertiesFile.getProperty("psw");
byte[] byteArray = Base64.decodeBase64(b.getBytes());
String decodedString = new String(byteArray);
b=decodedString;
datamap.put(a, b);
}
}
obj[i][0] =datamap;
}
}catch(Exception e){
e.printStackTrace();
}
return obj;
}
I'd like to read it horizontally, so that TestNG executes each column (the first column would be the keys column), how can i do?
Thanks

You can transpose your sheet and work with former columns which are now the rows: How to transpose sheet with POI SS/XSSF?
Or just change your loop nesting so that you go by columns in the outer loops. Not by rows.

I think i solved it
public Object[][] getData(ITestContext context) throws IOException {
Object[][] obj = null;
try {
File file = new File(context.getCurrentXmlTest().getParameter("resource"));
FileInputStream fis = new FileInputStream(file);
XSSFWorkbook wb = new XSSFWorkbook(fis);
XSSFSheet sheet = wb.getSheetAt(0);
wb.close();
int rowCount= sheet.getLastRowNum();
int colCount = sheet.getRow(0).getLastCellNum();
obj = new Object[colCount-1][1];
DataFormatter df = new DataFormatter();
for (int i = 0; i < colCount-1; i++) {
Map<String, String> datamap= new HashMap<String, String>();
for (int j = 0; j < rowCount+1; j++) {
String a = df.formatCellValue(sheet.getRow(j).getCell(0));
String b = df.formatCellValue(sheet.getRow(j).getCell(i+1));
System.out.println(a+ " "+b);
if(!b.equals(""))
datamap.put(a, b);
if(b.equals("[PWD]")) {
b=PropertiesFile.getProperty("psw");
byte[] byteArray = Base64.decodeBase64(b.getBytes());
String decodedString = new String(byteArray);
b=decodedString;
datamap.put(a, b);
}
}
obj[i][0] =datamap;
}
}catch(Exception e){
e.printStackTrace();
}
return obj;
}

How to Delete or Remove empty rows in Excel sheet using java

Input Excel file.....
25010082512 25002207512 1044 1044 NGN NGN
36620841728 36617009228 1066 1066 NGN NGN
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
public class RemoveEmptyCellInExcel {
//shifting empty columns
public static void shift(File f){
File F=f;
HSSFWorkbook workbook = null;
HSSFSheet sheet=null;
Boolean isRowEmpty=false;
try{
FileInputStream is=new FileInputStream(F);
workbook= new HSSFWorkbook(is);
sheet = workbook.getSheetAt(0);
//sheet.setDisplayGridlines(false);
for(int i = 3; i < sheet.getLastRowNum(); i++){
if(sheet.getRow(i)==null){
sheet.shiftRows(i + 1, sheet.getLastRowNum(), -1);
i--;
continue;
}
for(int j=0; j<sheet.getRow(i).getLastCellNum();j++){
if(sheet.getRow(i).getCell(j).toString().trim().equals(""))
{
isRowEmpty=true;
}else {
isRowEmpty=false;
break;
}
}
if(isRowEmpty==true){
sheet.shiftRows(i+ 1, sheet.getLastRowNum(), -1);
i--;
}
}
//Writing output to the same file.
FileOutputStream fileOut = new FileOutputStream("--------");
workbook.write(fileOut);
fileOut.close();
System.out.println("Successfully wrote the content in the file");
}
catch(Exception e){
e.printStackTrace();
}
}
public static void main(String args[]) {
//Input file path
File f=new File("------------");
RemoveEmptyCellInExcel.shift(f);
}
}
I need following output.....
25010082512 25002207512 1044 1044 NGN NGN
36620841728 36617009228 1066 1066 NGN NGN

your code is over complicated try to simplifie try using apach csv :
public static void shift(File file){
final FileReader fr = new FileReader(file.getPath());
final File out = new File(path);
try(CSVPrinter printer = new CSVPrinter(out, CSVFormat.DEFAULT
.withDelimiter(' ')) {
final Iterable<CSVRecord> records =
CSVFormat.DEFAULT.withDelimiter(' ').parse(fr);
for (final CSVRecord record : records) {
printer.printRecord(record.get(0),record.get(1), ...,
record.get(record.size()-1));
}

Try to use this code:
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.Iterator;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
public class RemoveEmptyCellInExcel {
//shifting empty columns
public static void shift(File f){
HSSFWorkbook workbook;
HSSFSheet sheet;
int firstColumn;
int endColumn;
boolean isRowEmpty = true;
try{
FileInputStream is=new FileInputStream(f);
workbook= new HSSFWorkbook(is);
sheet = workbook.getSheetAt(0);
//sheet.setDisplayGridlines(false);
//block to set column bounds
Iterator<Row> iter = sheet.rowIterator();
firstColumn = (iter.hasNext() ? Integer.MAX_VALUE : 0);
endColumn = 0;
while (iter.hasNext()) {
Row row = iter.next();
short firstCell = row.getFirstCellNum();
if (firstCell >= 0) {
firstColumn = Math.min(firstColumn, firstCell);
endColumn = Math.max(endColumn, row.getLastCellNum());
}
}
// main logic block
for (int i = 0; i< sheet.getLastRowNum(); i++) {
if (sheet.getRow(i) != null) {
isRowEmpty = true;
Row row = sheet.getRow(i);
for (int j = firstColumn; j < endColumn; j++) {
if (j >= row.getFirstCellNum() && j < row.getLastCellNum()) {
Cell cell = row.getCell(j);
if (cell != null) {
if (!cell.getStringCellValue().equals("")) {
isRowEmpty = false;
break;
}
}
}
}
//if empty
if (isRowEmpty) {
System.out.println("Found empty row on: " + row.getRowNum());
sheet.shiftRows(row.getRowNum() + 1, sheet.getLastRowNum(), -1);
i--;
}
}
// if row is null
else{
sheet.shiftRows(i + 1, sheet.getLastRowNum(), -1);
i--;
}
}
//Writing output to the same file.
FileOutputStream fileOut = new FileOutputStream("Test.xls");
workbook.write(fileOut);
fileOut.close();
System.out.println("Successfully wrote the content in the file");
}
catch(Exception e){
e.printStackTrace();
}
}
public static void main(String[] args) {
//Input file path
File f=new File("Test.xls");
RemoveEmptyCellInExcel.shift(f);
}
}

Writing to Excel with Java

I've searched around forums without prevail, so here I am.
I'm attempting to implement a method which writes to Excel, but every time it just corrupts the file. Here's a snippet of my code:
public static XSSFSheet printToExcel (ArrayList<String> al, Workbook wb, XSSFSheet s, FileWriter fw) throws FileNotFoundException, IOException {
int numOfRows = s.getPhysicalNumberOfRows();
for (int i = 0; i <= numOfRows; i++ ) {
XSSFRow row = s.createRow(i);
XSSFCell cell = row.createCell(i);
String text = al.get(i);
cell.setCellValue(text);
fw.write(text);
fw.close();
}
return s;
}
Hopefully you all can help me. I'm mostly self-taught so any advice will be appreciated.

This is an example which I wrote in another context but it will help you to start
import org.apache.poi.common.usermodel.HyperlinkType;
import org.apache.poi.ss.usermodel.FillPatternType;
import org.apache.poi.ss.usermodel.Font;
import org.apache.poi.ss.usermodel.Hyperlink;
import org.apache.poi.xssf.usermodel.*;
import java.awt.*;
import java.io.ByteArrayOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
public class WriteExcelBasic {
public static void main(String[] args) throws IOException {
String excelFileName = "/Users/home/Test3.xlsx";
FileOutputStream fos = new FileOutputStream(excelFileName);
XSSFWorkbook wb = new XSSFWorkbook();
XSSFCellStyle style = wb.createCellStyle();
XSSFSheet sheet = wb.createSheet("sheet");
XSSFFont urlFont = wb.createFont();// changed lines
urlFont.setFontHeight((short)(9*20));
// urlFont.setUnderline((byte)10);
//urlFont.setBold(true);
urlFont.setFontName("Arial");
urlFont.setItalic(true);
urlFont.setColor(new XSSFColor(Color.BLUE)); // changed lines
style.setFont(urlFont);
for (int r = 0; r < 3; r++) {
XSSFRow row = sheet.createRow(r);
for (int c = 0; c < 3; c++) {
XSSFCell cell = row.createCell(c);
Hyperlink link = wb.getCreationHelper().createHyperlink(HyperlinkType.URL);
String ss = "http://news.google.com/news/headlines?ned=us&hl=en";
//String ss = "swasdqde";
link.setAddress(ss);
cell.setHyperlink(link);
cell.setCellValue(ss);
if(r == 1) {
System.out.println("In yellow");
style.setFillPattern(FillPatternType.SOLID_FOREGROUND);
style.setFillForegroundColor(new XSSFColor(Color.YELLOW));
} else {
System.out.println("In red");
style.setFillPattern(FillPatternType.SOLID_FOREGROUND);
style.setFillForegroundColor(new XSSFColor(Color.RED));
}
cell.setCellStyle(style);
}
}
try (ByteArrayOutputStream baos = new ByteArrayOutputStream()) {
wb.write(baos);
byte[] myByteArray = baos.toByteArray();
fos.write(myByteArray);
fos.flush();
}
finally {
wb.close();
fos.close();
}
}
}

converting csv to excel through java

I have to convert CSV to XLS format through Java POI since I am doing some manipulations with XLS sheets through POI. Below is my code:
File file = new File("C:\\abc.csv");
FileInputStream fin = null;
fin = new FileInputStream(file);
HSSFWorkbook workbook = new HSSFWorkbook(fin);
HSSFSheet firstSheet1 = workbook.getSheetAt(0);
Now I want to write a fuctions, lets say method name is convertcsvtoexcel which will accept the file obj and in return it will be give me converted XLS file that file will be stored in my C: drive with the name abcout.xls and later on I will be passing it to workbook as shown. I have tried the following code. Please advise how I can custoise it to make it fittable for my piece of code.
ArrayList arList = null;
ArrayList al = null;
String fName = "test.csv";
String thisLine;
int count = 0;
FileInputStream file = null;
file = new FileInputStream(new File("C:\\abc.csv"));
//FileInputStream fis = new FileInputStream(file);
DataInputStream myInput = new DataInputStream(file);
int i = 0;
arList = new ArrayList();
while ((thisLine = myInput.readLine()) != null) {
al = new ArrayList();
String strar[] = thisLine.split(",");
for (int j = 0; j < strar.length; j++) {
al.add(strar[j]);
}
arList.add(al);
System.out.println();
i++;
}
try {
HSSFWorkbook hwb = new HSSFWorkbook();
HSSFSheet sheet = hwb.createSheet("new sheet");
for (int k = 0; k < arList.size(); k++) {
ArrayList ardata = (ArrayList) arList.get(k);
HSSFRow row = sheet.createRow((short) 0 + k);
for (int p = 0; p < ardata.size(); p++) {
HSSFCell cell = row.createCell((short) p);
String data = ardata.get(p).toString();
if (data.startsWith("=")) {
cell.setCellType(Cell.CELL_TYPE_STRING);
data = data.replaceAll("\"", "");
data = data.replaceAll("=", "");
cell.setCellValue(data);
} else if (data.startsWith("\"")) {
data = data.replaceAll("\"", "");
cell.setCellType(Cell.CELL_TYPE_STRING);
cell.setCellValue(data);
} else {
data = data.replaceAll("\"", "");
cell.setCellType(Cell.CELL_TYPE_NUMERIC);
cell.setCellValue(data);
}
//*/
// cell.setCellValue(ardata.get(p).toString());
}
System.out.println();
}
FileOutputStream fileOut = new FileOutputStream("C:\\abcout.xls");
hwb.write(fileOut);
fileOut.close();
System.out.println("Your excel file has been generated");
} catch (Exception ex) {
ex.printStackTrace();
} //main method end

public static void csvToXLSX() {
try {
String csvFileAddress = "test.csv"; //csv file address
String xlsxFileAddress = "test.xlsx"; //xlsx file address
XSSFWorkbook workBook = new XSSFWorkbook();
XSSFSheet sheet = workBook.createSheet("sheet1");
String currentLine=null;
int RowNum=0;
BufferedReader br = new BufferedReader(new FileReader(csvFileAddress));
while ((currentLine = br.readLine()) != null) {
String str[] = currentLine.split(",");
RowNum++;
XSSFRow currentRow=sheet.createRow(RowNum);
for(int i=0;i<str.length;i++){
currentRow.createCell(i).setCellValue(str[i]);
}
}
FileOutputStream fileOutputStream = new FileOutputStream(xlsxFileAddress);
workBook.write(fileOutputStream);
fileOutputStream.close();
System.out.println("Done");
} catch (Exception ex) {
System.out.println(ex.getMessage()+"Exception in try");
}
}

How to recover formula cell cache result from excel file

I'm trying to retrieve the cached result of a formula cell in excel, the entire column is comprised of formula cells and i want to store the cached results of the columns' cells in an arraylist, but i get the error.
Apologies, i pasted the wrong code earlier, its fixed now.
public static void main(String[] args) throws Exception {
String filename = "C:/Users/L30902/Desktop/eclipse folder/FeaturesTest/student.xlsx";
FileInputStream fis = null;
int cellvalue = 0;
try {
fis = new FileInputStream(filename);
XSSFWorkbook workbook = new XSSFWorkbook(fis);
XSSFSheet sheet = workbook.getSheetAt(0);
Iterator rowIter = sheet.rowIterator();
while (rowIter.hasNext()) {
XSSFRow myRow = (XSSFRow) rowIter.next();
Iterator cellIter = myRow.cellIterator();
Vector<String> cellStoreVector = new Vector<String>();
while (cellIter.hasNext()) {
XSSFCell myCell = (XSSFCell) cellIter.next();
try {
cellvalue = myCell.getCachedFormulaResultType();
} catch (Exception e) {
}
cellStoreVector.addElement(Integer.toString(cellvalue));
}
String secondcolumnValue = null;
int i = 0;
secondcolumnValue = cellStoreVector.get(i).toString();
insertQuery(secondcolumnValue);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
if (fis != null) {
fis.close();
}
}
// showExelData(sheetData);
}
private static void insertQuery(String secondcolumnvalue) {
System.out.println(secondcolumnvalue);
}
I should return values like 500, 33 but i only return 0, 0