eclipse - Selenium webdriver with JAVA -

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**when run code. getting error exception in thread "main" java.lang.nullpointerexception .can tell me how fix it?

package insights;  import java.util.concurrent.timeunit; import org.openqa.selenium.by; import org.openqa.selenium.webdriver; import org.openqa.selenium.chrome.chromedriver; public class test_getinsights {     static webdriver driver;      public static void main(string[] args) throws exception  {         system.setproperty("webdriver.chrome.driver", "c://selenium-2.53.0/chromedriver.exe");         webdriver driver = new chromedriver();         driver.get("https://getinsights.co");         driver.manage().window().maximize();          //login//         driver.findelement(by.xpath("html/body/div[1]/div/nav/div/div[2]/ul/li[7]/a")).click();          //login_page//         driver.findelement(by.xpath(".//*[@id='form']/div[1]/input")).sendkeys("testgetinsight@gmail.com");         driver.findelement(by.xpath("html/body/div[1]/div/div[2]/div/form/div[2]/input")).sendkeys("airloyal");         driver.findelement(by.xpath("html/body/div[1]/div/div[2]/div/form/div[3]/div[2]/button")).click();          //create_survey//         thread.sleep(10000);         driver.findelement(by.xpath(".//*[@id='rootid']/div[2]/div[1]/div[4]/div[2]/div/div/button")).click();          //create_question//         driver.manage().timeouts().implicitlywait(700, timeunit.seconds);         driver.findelement(by.xpath("html/body/div[1]/div/div/div[2]/div[1]/div/button[2]")).click();         driver.findelement(by.xpath(".//*[@id='rootid']/div/div/div[2]/div[2]/div[1]/div[3]/div/div/div/button[2]")).click();         system.out.println("driver=" + driver);         ****driver.findelement(by.xpath(".//*[@id='question 14998']/div/textarea")).sendkeys("which best website learn java?");****  // null pointer exception//         driver.findelement(by.xpath(".//*[@id='rootid']/div/div/div[2]/div[2]/div[1]/div[5]/button")).click();          //post_question         driver.findelement(by.cssselector(".clear.opentextstyle.ng-pristine.ng-untouched.ng-invalid.ng-invalid-required")).sendkeys("java");          driver.findelement(by.cssselector(".launch-btn.ng-binding")).click();          driver.quit();         driver.close();     } }

i dont think there element statement. please add check null before invoking sendkeys

webelement element = driver.findelement(by.xpath(".//*[@id='question 14998']/div/textarea")); if ( element != null ){   element.sendkeys("which best website learn java?") }else  //do thing  }

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