for loop to send assert result to excel using jxl - selenium

Question

i am trying to write selenium script which writes pass/fail based on assert.
the problem i am facing here is the assert results are not getting inserted into excel properly. There is some issue with the for loop which i have written. please help me in fixing it.
thanks in advance.
This is the code which i have written
package DDT;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Map;
import org.openqa.selenium.Alert;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import org.testng.annotations.AfterClass;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import org.testng.asserts.SoftAssert;
import jxl.Cell;
import jxl.Sheet;
import jxl.Workbook;
import jxl.read.biff.BiffException;
import jxl.write.Label;
import jxl.write.WriteException;
import jxl.write.biff.RowsExceededException;
public class TestPass extends ExeclUtility
{
WebDriver driver;
Map<String,Object[]> Exp;
#BeforeClass
public void openBrowser()//opening of the browser is done only 1s before executing the test data
{
System.setProperty("webdriver.chrome.driver","C:\\Users\\DELL\\Desktop\\shree\\qsp_java_selenium\\selenium\\selenium_web_driver\\chrome_driver\\chromedriver.exe");
driver=new ChromeDriver();
driver.get("file:///C:/Users/DELL/Desktop/USN%20and%20Sem.html");
}
#Test(dataProvider="TestData")
public void datasend(String username,String phnum,String Exp) throws InterruptedException, RowsExceededException, WriteException
{
WebElement name=driver.findElement(By.id("field1"));
name.clear();
name.sendKeys(username);
WebElement pwd=driver.findElement(By.id("field2"));
pwd.clear();
pwd.sendKeys(phnum);
WebElement but=driver.findElement(By.id("field4"));
but.click();
Alert alert=driver.switchTo().alert();
SoftAssert assertion=new SoftAssert();
for(int i=0;i<6;i++){
try
{
assertion.assertEquals(Exp, alert.getText());// compares the expected result in excel v/s the actual o/p
Testcase="pass";
Label l3=new Label(3,i,Testcase);
writablesh.addCell(l3);
}
catch(Exception e)
{
Testcase="fail";
Label l3=new Label(3,i,Testcase);
writablesh.addCell(l3);
}}
assertion.assertEquals(Exp, alert.getText());
alert.accept();
assertion.assertAll();
Thread.sleep(3000);
}
#AfterClass
public void closeBrowser()//browser is closed 1s after all the test data are executed
{
driver.quit();
}
#DataProvider(name = "TestData")
public Object[][] ExcelData() throws BiffException, IOException
{
String Filepath="D:\\selenium_pgms\\intern_practice\\Book1.xls";
FileInputStream Excelfile=new FileInputStream(Filepath);
Workbook Exbook=Workbook.getWorkbook(Excelfile);
Sheet Exsheet=Exbook.getSheet("Sheet1");
int Rows=Exsheet.getRows();
int Columns=Exsheet.getColumns();
String Testdata[][]= new String[Rows-1][Columns];
int count=0;
for(int i=1;i<Rows;i++)
{
for(int j=0;j<Columns;j++)
{
Cell Excell = Exsheet.getCell(j,i);
Testdata[count][j]=Excell.getContents();
}
count++;
}
Excelfile.close();
return Testdata;
}
}