java selenium + + new-- input text box, empty - Click the button

Package rjcs; 

Import org.openqa.selenium.firefox.FirefoxDriver; 

public  class xinkaishi 
{ 

    
    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 ();         // initialize FireFox browser instance, and open the browser 
         
        the try 
        { 
             Driver. .. the Manage () window () the maximize ();          // maximize the window 
             
             Thread.sleep (5000 );     
             
             . Driver.navigate () to ( "http://www.baidu.com" ); 
             
             Thread.sleep ( 5000 ); 
             
             
             
             
             
             
             
             
             driver.findElementById ( "kw") sendKeys ( "china");.         // text box enter 
             
             Thread.sleep ( 5000 ); 
             
             
             
             
             driver.findElementById ( "kw") the Clear () ;;.         // text box empty 
             
             Thread.sleep ( 5000 ); 
             
             
             
             
             
             
             
             driver.findElementById ( . "kw") sendKeys ( "China ");         // text box to re-enter 
             
             
             driver.findElementById ( " su ").            click();            // OK (search) button 
             
             the Thread.sleep ( 10000 ); 
             
             
        } the catch (Exception E) 
        { 
            e.printStackTrace (); 
        } the finally  
        { 
            driver.quit (); 
        
         } 
    } 
    
    
    
}