Selenium Webdriver - Clicking on Banner - selenium

Question

I am trying to click on < and > button of the banner which keeps on rotating after few seconds in amazon.in but unable to do so.
I wrote the following code but still not successful
driver.get("amazon.in");
driver.manage().timeouts().implicitlyWait(5, TimeUnit.SECONDS);
driver.findElement(By.xpath("//span[contains(text(),'Previous page')]")).click();
It does not click on < button on the banner which is displayed on the top of the page.

Answer 1

When I write code that I'm likely to reuse, I put it into functions. Here's a function to click the next and prev arrows on the banner.
public static void clickNextBanner()
{
driver.findElement(By.cssSelector("a.a-carousel-goto-nextpage")).click();
}
public static void clickPrevBanner()
{
driver.findElement(By.cssSelector("a.a-carousel-goto-prevpage")).click();
}

Answer 2

Try using Explicit Wait
WebElement previous =driver.findElement(By.xpath("//span[contains(text(),'Previous page')]"));
WebDriverWait wait = new WebDriverWait(driver,20);
wait.until(ExpectedConditions.visibilityOfElementLocated(By.xpath("//span[contains(text(),'Previous page')]")));
previous.click();

Answer 3

Use the following code to click on next > and previous < arrows of slider.
driver.get("http://www.amazon.in/");
driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
driver.manage().window().maximize();
// Forward navigation
for(int i =0;i<3;i++)
{
driver.findElement(By.xpath("//a[#class='a-carousel-goto-nextpage']")).click();
Thread.sleep(1000);
}
// back navigation
for(int j=0;j<3;j++)
{
driver.findElement(By.xpath("//a[#class='a-carousel-goto-prevpage']")).click();
Thread.sleep(1000);
}