Sendkeys NOT working for textfield

Question

While trying the below code

driver.findElement(By.id("txt_UserName")).click();
driver.findElement(By.xpath(".//*[@id='txt_UserName'][@name='txt_UserName'][@class='formInput']")).sendKeys(new String("karthik"));
driver.findElement(By.name("txt_Password")).clear();

I am getting the following error :

Exception in thread "main" org.openqa.selenium.InvalidArgumentException: Expected [object Undefined] undefined to be a string

Answer 1

It seems that you have mismatched your coding standards.

WebElement userName= driver.findElement(By.id("txt_UserName"));
userName.clear();
userName.sendKeys("karthik");

WebElement paswd= driver.findElement(By.id("txt_Password"));
paswd.clear();
paswd.sendKeys("Enter your Password");

paswd.submit();

Confirm once your locators of Username & Password field and use it in above code....