Selenium : JS Alert handling using "Try"and "Catch"

The following code does the same job as the previous except that it uses TRY and CATCH to resolve the issue.

import

org.openqa.selenium.Alert;

import

org.openqa.selenium.By;

import

org.openqa.selenium.WebDriver;

import

org.openqa.selenium.WebElement;

import

org.openqa.selenium.firefox.FirefoxDriver;

import

org.openqa.selenium.support.events.EventFiringWebDriver;

import

org.openqa.selenium.support.ui.ExpectedConditions;

import

org.openqa.selenium.support.ui.WebDriverWait;

　

public

class handle_javascript_err {

　

public static void main(String[] args) throws InterruptedException

{

WebDriver driver=

new FirefoxDriver();

EventFiringWebDriver d=

new EventFiringWebDriver(driver);

driver.get(

"http://www.w3schools.com/js/tryit.asp?filename=tryjs_intro_validate");

driver.switchTo().frame(

"viewIFRAME");

driver.findElement(By.id(

"demo")).sendKeys("abc");

driver.findElement(By.xpath(

"//button[text()='Click Me!']")).click();

try

{

System.out.println( driver.switchTo().alert().getText()+" --- Alert is present");

driver.switchTo().alert().accept();

}

catch (org.openqa.selenium.UnhandledAlertException e)

{

System.

out.println("not present");

}

Thread.sleep(1000);

driver.quit();

}

}