Instantiate Specific Browser using Selenium WebDriver

WebDriver is an open source tool for automated testing of web applications across many browsers.
Firefox Driver 
  1. import org.openqa.selenium.firefox.FirefoxDriver;  
  2. WebDriver driver = new FirefoxDriver();  
Chrome Driver
  1. import org.openqa.selenium.chrome.ChromeDriver;   
  2. System.setProperty("webdriver.chrome.driver""D:\\Selenium\\chromedriver.exe");  
  3. WebDriver driver = new ChromeDriver();  
Internet Explorer Driver
  1. import org.openqa.selenium.ie.InternetExplorerDriver;   
  2. System.setProperty("webdriver.ie.driver","D:\\Selenium\\IEDriverServer.exe");  
  3. WebDriver driver = new InternetExplorerDriver();