Java- code to find the earliest date + Selenium WebDriver to perform actions

 Here is an interesting code that will

1. Pick elements from a webpage 
2. Convert the text into time               
3. Put all the collected time into a sorted date set
4. Pick the earliest date in the set
5. Use this date to perform desired action on the webpage 

  SortedSet dates = new TreeSet(); 
  String time; 
  List elements = driver.findElements(By.xpath("//a[contains(text(), ':')]")); 
  for (WebElement webElement : elements) { 
  time = webElement.getText(); 
  if (!(time.equals(""))) { 
    SimpleDateFormat simpleDateFormat = new SimpleDateFormat("HH:mm"); 
    Date date = simpleDateFormat.parse(time); 
    //System.out.println(simpleDateFormat.format(date)); 
    dates.add(date); 
  } 
  } 
  

  Date earliest = dates.first(); 
  SimpleDateFormat sdf = new SimpleDateFormat("HH:mm"); 
  String found = sdf.format(earliest); 
  String id = driver.findElement(By.xpath("//a[contains(text(),'"+found+"')]")).getAttribute("title");

  driver.findElement(By.xpath(".//*[@title='"+id+"']")).click