How to Handle Modal Dialog Box in Selenium WebDriver Java

BaseTest.java

package test;


import java.net.*;
import java.time.Duration;
import java.util.HashMap;


import org.openqa.selenium.remote.RemoteWebDriver;
import org.openqa.selenium.support.ui.WebDriverWait;
import org.openqa.selenium.chrome.ChromeOptions;
import org.testng.annotations.*;


public class BaseTest
{
   public RemoteWebDriver driver = null;
   public WebDriverWait wait;


   String username = System.getenv("LT_USERNAME") == null ? "<lambdatest_username>" : System.getenv("LT_USERNAME");
   String accessKey = System.getenv("LT_ACCESS_KEY") == null ? "<lambdatest_accesskey>" : System.getenv("LT_ACCESS");


   @BeforeTest
   public void setup() {
       try {
           ChromeOptions chromeOptions = new ChromeOptions();
           chromeOptions.setPlatformName("Windows 10");
           chromeOptions.setBrowserVersion("122.0");


           HashMap<String, Object> ltOptions = new HashMap<String, Object>();
           ltOptions.put("build", "Handling Dialog Box Selenium Java");
           ltOptions.put("name", "Handling Dialog Box Selenium Java");
           ltOptions.put("w3c", true);
           chromeOptions.setCapability("LT:Options", ltOptions);


           driver = new RemoteWebDriver(
                   new URL("https://" + username + ":" + accessKey + "@hub.lambdatest.com/wd/hub"), chromeOptions);
          
           //to set default explicit wait duration as 20 seconds
           wait = new WebDriverWait(driver, Duration.ofSeconds(20));
       } catch (MalformedURLException e) {
           e.printStackTrace();
       }
   }


   @AfterTest
   public void closeDriver() {
       driver.quit();
   }
}