How to Click Random element from a list of elements returned by a search

I have page where list of products are displayed, I need to click only particular type of listings from the list so saved this particular type as "Webelement". Now, whenever I land on this page, I check a condition and click only on first product. But, my requirement is after checking a condition, I need to click any random product in the list. see my code below. kindly suggest.

 driver.findElement(By.linkText("ALL EQUIPMENT")).click();     driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);     List <WebElement> listings = driver.findElements(By.cssSelector("a[href*='/listing?listingid']"));              for (int i=0; i < listings.size(); i++) {      WebElement requiredlisting = listings.get(i);      System.out.println(i);      requiredlisting.click();     Thread.sleep(10000);     getvalue = driver.findElement(By.xpath("//div[7]/span")).getText();     System.out.println(getvalue);         driver.findElement(By.xpath("//div[3]/div[2]/input")).click();         Thread.sleep(10000);         driver.findElement(By.id("listingQuestion")).click();        Thread.sleep(10000);         driver.findElement(By.id("listingQuestion")).sendKeys("Where is the listing located");            Thread.sleep(10000);                      driver.findElement(By.name("submitq")).click();            Thread.sleep(10000);                                  driver.findElement(By.xpath("//div/div[2]/div[3]/input")).click();         Thread.sleep(10000);         driver.findElement(By.id("uname")).click();         driver.manage().timeouts().implicitlyWait(20, TimeUnit.SECONDS);         driver.findElement(By.linkText("Sign Out")).click();