Selenium(datepicker issue) [duplicate] - selenium

Question

This question already has answers here:
Select from a DatePicker in Python
(3 answers)
Closed 3 years ago.
Am trying to automate a date picker,on clicking the ok button date should be displayed in date box.I have two date pickers like for a start date and the other is for the end date.One date picker is registering the date but the other date picker is not registering the date,neither i get any error.Please help,it's urgent.Here is my code..
package DatePicker;
import java.util.List;
import java.util.concurrent.TimeUnit;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.interactions.Actions;
import org.openqa.selenium.support.ui.ExpectedConditions;
import org.openqa.selenium.support.ui.WebDriverWait;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
public class DatePickerTest
{
WebDriver driver;
Actions builder;
#BeforeMethod
public void setup()
{
System.setProperty("webdriver.chrome.driver", "C:\\chromedriver.exe");
driver = new ChromeDriver();
driver.manage().timeouts().implicitlyWait(10,TimeUnit.SECONDS);
driver.get("http://localhost/able/public/index.php/get_inputs");
driver.manage().timeouts().implicitlyWait(10,TimeUnit.SECONDS);
System.out.println("Hello client");
}
#Test
public void TestDate() throws Exception
{
WebDriverWait wait=new WebDriverWait(driver,3);
Boolean invisible=wait.until(ExpectedConditions.invisibilityOfElementLocated(By.className("preloader")));
if(invisible)
{
driver.findElement(By.xpath("//*[#id=\"add-edit-form\"]/div[3]/div[1]")).click();
}
Thread.sleep(2000);
WebElement web11=driver.findElement(By.className("dtp-btn-ok"));
web11.click();
Thread.sleep(2000);
driver.findElement(By.id("Contract_e_date")).click();
Thread.sleep(1000);
builder= new Actions(driver);
//Thread.sleep(1000);
WebElement web2=driver.findElement(By.className("dtp-btn-ok"));
//Thread.sleep(1000);
builder.moveToElement(web2).click(web2);
//web2.click();
Thread.sleep(1000);
builder.perform();
}
}

Answer 1

Look here:
WebElement web11=driver.findElement(By.className("dtp-btn-ok"));
WebElement web2=driver.findElement(By.className("dtp-btn-ok"));
If your 2 datepickers have the same CSS class - Selenium will always find the first one and perform operations on the first item found.
Quick and dirty solution would be switching to WebDriver.findElements() function which returns the List of WebElements like:
List<WebElement> datepickers = driver.findElements(By.className("dtp-btn-ok"));
WebElement web11 = datepickers.get(0);
WebElement web2 = datepickers.get(1);
A better solution would be choosing the right Locator Strategy so your locator would uniquely match this or that datepicker (look into their parents, associated text, etc.)
Also be aware that using Thread.sleep is a some form of a performance anti-pattern, consider using WebDriverWait instead, check out How to use Selenium to test web applications using AJAX technology for more details if needed.