java + selenium-- open multiple windows, and the window switching - Method II

package rjcs;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.List;
import java.util.Set;

import org.openqa.selenium.interactions.Actions;
import org.apache.commons.io.FileUtils;
import org.openqa.selenium.TakesScreenshot;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.interactions.Actions;
import org.openqa.selenium.By;
import org.openqa.selenium.Keys;
import org.openqa.selenium.WebElement;
import org.testng.annotations.Test;
import org.openqa.selenium.*;

import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

import javax.imageio.ImageIO;

import org.openqa.selenium.OutputType;

import com.thoughtworks.selenium.SeleneseTestNgHelper;

public class ckqhh 
{
    public static void main(String[] args)
    
    {
         System.setProperty("webdriver.firefox.bin", "C: \\ Program Files (the x86) \\ \\ firefox.exe the Mozilla Firefox");     // set the installation path Firefox, preventing system can not find 
            
         FirefoxDriver Driver = new new FirefoxDriver () ;         // initializes FireFox browser instance, and open the browser 
         
        the try 
        { 
             driver.manage () window () maximize ();..          @ maximized window 
             
             the Thread.sleep ( 3000 );         
             
             . driver.manage () window () .maximize ();          // maximize the window 
             
             Thread.sleep ( 3000 ); 
        
             driver.get ( "https://www.baidu.com");                     //Open a Web site, a method      
             
             String handle = driver.getWindowHandle ();        // Get the current page handle   
        
             Thread.sleep ( 3000 );                   
                          
              driver.findElementByPartialLinkText ( "Homepage" ) .click (); 

             Thread.sleep ( 3000 );   
             
             

             for (String handles: driver.getWindowHandles ())   // get a handle to all the pages, and the current cycle is determined not handle 
             {  
                  IF (handles.equals (handle)) 
                    ; driver.switchTo () window (handle).   
             } 

             
             
             the Thread. SLEEP ( 8000 );
             
        }catch (Exception e) 
        {
            e.printStackTrace();
        }finally 
        {
            driver.quit();
        
         }
   }
    

}