How to Capture Screen shot using Java for selenium webdriver

import java.io.File;
import java.io.IOException;
import java.util.concurrent.TimeUnit;

import org.apache.commons.io.FileUtils;
import org.openqa.selenium.OutputType;
import org.openqa.selenium.TakesScreenshot;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;


public class TakesScreenshotTest {



		public static void main(String[] args) throws IOException {
			WebDriver myTestDriver = new FirefoxDriver();
			myTestDriver.get("http://tinyurl.com/6d7xz7k");
			myTestDriver.manage().window().maximize();
			myTestDriver.manage().timeouts().implicitlyWait(10,TimeUnit.SECONDS);

			File scrFile = ((TakesScreenshot)myTestDriver).getScreenshotAs(OutputType.FILE);
		    FileUtils.copyFile(scrFile, new File("c:\\careerbuilder.jpg"));

		    myTestDriver.quit();
		}


}