Selenium 2.0 and WebDriver - the 五 minute getting started guide

package org.openqa.selenium.example;

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

public class Selenium2Example  {
    public static void main(String[] args) {
        // Create a new instance of the Firefox driver
        // Notice that the remainder of the code relies on the interface, 
        // not the implementation.
        WebDriver driver = new FirefoxDriver();

        // And now use this to visit Google
        driver.get("http://www.google.com");

        // Find the text input element by its name
        WebElement element = driver.findElement(By.name("q"));

        // Enter something to search for
        element.sendKeys("Cheese!");

        // Now submit the form. WebDriver will find the form for us from the element
        element.submit();

        // Check the title of the page
        System.out.println("Page title is: " + driver.getTitle());
        
        //Close the browser
        driver.quit();
    }
}

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according to the website, http://seleniumhq.org/docs/03_webdriver.html , at first, i cannot make it run, because i didn't get the firefox of right version which's supposed to be english version 4 . perhaps english version is mandated. and the necessary jars respectively are selenium-java-2.0b3.jar, guava-r08.jar, httpclient-4.0.2.jar, httpcore-4.0.1.jar, commons-logging-1.1.1.jar, json-20080701.jar, the version of the jar may not necessarily be those. all are contained in the lib.zip file.

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RemoteWebDriver

You’ll start by using the HtmlUnit Driver. This is a pure Java driver that runs entirely in-memory. Because of this, you won’t see a new browser window open.

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package org.openqa.selenium.example;

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.htmlunit.HtmlUnitDriver;

public class HtmlUnitExample {
    public static void main(String[] args) {
        // Create a new instance of the html unit driver
        // Notice that the remainder of the code relies on the interface,
        // not the implementation.
        WebDriver driver = new HtmlUnitDriver();

        // And now use this to visit Google
        driver.get("http://www.google.com");

        // Find the text input element by its name
        WebElement element = driver.findElement(By.name("q"));

        // Enter something to search for
        element.sendKeys("Cheese!");

        // Now submit the form. WebDriver will find the form for us from the element
        element.submit();

        // Check the title of the page
        System.out.println("Page title is: " + driver.getTitle());
    }
}

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and all the jars are in the download page http://seleniumhq.org/download/ , selenium2.0b3.