Automation script, Navigate to "facebook.com" and select the Date of birth.

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.support.ui.Select;


public class ListBoxDemo {

public static void main(String[] args) {
WebDriver driver = new FirefoxDriver();

driver.get("http://facebook.com");

WebElement ele1 = driver.findElement(By.id("month"));
WebElement ele2 = driver.findElement(By.id("day"));
WebElement ele3 = driver.findElement(By.id("year"));

Select sel = new Select(ele1);

sel.selectByVisibleText("Jul");

sel=new Select(ele2);

sel.selectByValue("26");

sel= new Select(ele3);

sel.selectByVisibleText("1991");

}

}