gistfile1.java

import org.openqa.selenium.By;
import org.openqa.selenium.NoSuchElementException;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;

public class FFLinux {
  public static void main(String[] args) {
    WebDriver ff = new FirefoxDriver();
    ff.get("http://www.domain.com");
    ff.findElement(By.linkText("Login")).click();
    ff.findElement(By.xpath("//div[@id = 'idSignIn']")).click();
    ff.findElement(By.id("logonId")).sendKeys("user");
    ff.findElement(By.id("logonPassword")).sendKeys("pass");
    ff.findElement(By.id("Sign_In_and_Continue")).click();

    if(isElementPresent(driver, By.id("search_field"))) {
      System.out.println("found");
    } else {
      System.out.println("not found");
    }

    ff.quit();
  }

  private static boolean isElementPresent(WebDriver driver, By locator) {
    try {
      driver.findElement(locator);
      return true;
    } catch (NoSuchElementException e) {
      return false;
    }
  }
}