How to download all images from website in Selenium Webdriver using java.

 import java.io.BufferedInputStream;  
 import java.io.BufferedOutputStream;  
 import java.io.FileOutputStream;  
 import java.io.IOException;  
 import java.io.InputStream;  
 import java.io.OutputStream;  
 import java.net.MalformedURLException;  
 import java.net.URL;  
 import java.util.List;  
 import java.util.concurrent.TimeUnit;  
 import org.openqa.selenium.By;  
 import org.openqa.selenium.Keys;  
 import org.openqa.selenium.WebDriver;  
 import org.openqa.selenium.WebElement;  
 import org.openqa.selenium.firefox.FirefoxDriver;  
 public class Getallwebsiteimagedown {  
   static WebDriver driver;  
   static List<webelement> imageurls, links;  
   public static void main(String[] a) throws InterruptedException, MalformedURLException, IOException {  
     // Initialize Firefox driver   
     driver = new FirefoxDriver();  
     //Maximize browser window   
     driver.manage().window().maximize();  
     String websiteaddress = "https://www.flickr.com/";  
     //Go to website   
     driver.get(websiteaddress);  
     driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);  
     //get all url of page  
     links = driver.findElements(By.tagName("a"));  
     for (int k = 0; k < links.size(); k++) {  
       // check url not null, empty and only current website   
       if (!(links.get(k).getAttribute("href") == null) && !(links.get(k).getAttribute("href").equals("")) && (links.get(k).getAttribute("href").contains("flickr.com")) && !(links.get(k).getAttribute("href").contains("@"))) {  
         // Open new tab  
 driver.findElement(By.cssSelector("body")).sendKeys(Keys.CONTROL + "t");  
         driver.get(links.get(k).getAttribute("href"));  
 driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);  
         // get all images  
         imageurls = driver.findElements(By.tagName("img"));  
         System.err.println("Page URL =: " + driver.getCurrentUrl());  
         //get all images url  
         for (int m = 0; m < imageurls.size(); m++) {  
           if (!(imageurls.get(m).getAttribute("src").equals("")) && !(imageurls.get(m).getAttribute("src") == null)) {  
 String[] imagename = imageurls.get(m).getAttribute("src").trim().split("\\/");  
 System.out.println(imageurls.get(m).getAttribute("src") + "  " + imagename[imagename.length - 1]);  
             //download image  
 URL url = new URL(imageurls.get(m).getAttribute("src").trim());  
 InputStream in = new BufferedInputStream(url.openStream());  
 OutputStream out = new BufferedOutputStream(new FileOutputStream("image/" + imagename[imagename.length - 1]));  
             for (int i; (i = in.read()) != -1;) {  
               out.write(i);  
             }  
             in.close();  
             out.close();  
           }  
         }  
         // close open tab  
 driver.findElement(By.cssSelector("body")).sendKeys(Keys.CONTROL + "w");  
 driver.findElement(By.cssSelector("body")).sendKeys(Keys.CONTROL + "\t");  
         driver.switchTo().defaultContent();  
         Thread.sleep(7000);  
       }  
     }  
     driver.quit();  
   }  
 }