Its very simple : you can do like this :
WebDriver driver = new FirefoxDriver();WebElement element1 = driver.findElement(By.id("id_of_1st_element"));
String Element1 = element1.toString();
System.out.println( Element1 +" is avalable");
WebElement element2 = driver.findElement(By.id("id_of_2st_element"));
String Element2 = element2.toString();
System.out.println( Element2 +" is avalable");
Enjoy!