Explain Fluent Wait In Selenium Webdriver

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.support.ui.FluentWait;
 
import com.google.common.base.Function;
 
public class FluentWaitDEmo {
 
public static void main(String[] args) throws InterruptedException {
 
           // Start browser
 
          WebDriver driver = new ChromeDriver();
 
           // Maximize browser
 
          driver.manage().window().maximize();
 
     // Start the application 
 
     driver.get("url here");
 
// Click on timer so clock will start
 
          driver.findElement(By.xpath("Write xpath")).click();
 
 
 
// Create object of FluentWait class and pass webdriver as input
 
          FluentWait<WebDriver> wait = new FluentWait<WebDriver>(driver);
 
 
 
           // It should poll webelement after every single second
 
          wait.pollingEvery(1, TimeUnit.SECONDS);
 
 
 
           // Max time for wait- If conditions are not met within this time frame then it will fail the script
 
          wait.withTimeout(10, TimeUnit.SECONDS);
 
 
 
       // we are creating Function here which accept webdriver and output as WebElement-
 
          WebElement element = wait.until(new Function<WebDriver, WebElement>() {
 
 
 
                // apply method- which accept webdriver as input
 
               @Override
 
               
public WebElement apply(WebDriver arg0) 
{
 
      // find the element
 
       WebElement ele = arg0.findElement(By.xpath("Write xpath"));
 
// Will capture the inner Text and will compare will WebDriver
 
// If condition is true then it will return the element and wait will be over
 
                     if (ele.getAttribute("innerHTML").equalsIgnoreCase("WebDriver")) 
                      {
 
                          System.out.println("Value is >>> " + ele.getAttribute("innerHTML"));
 
                          return ele;
 
                     }
 
// If condition is not true then it will return null and it will keep checking until condition is not true
 
else {
        System.out.println("Value is >>> " + ele.getAttribute("innerHTML"));
 
           return null;
 
       }
 
               }
 
          });
 
// If element is found then it will display the status
 
          System.out.println("Final visible status is >>>>> " + element.isDisplayed());
 
     }