java - The method sendKeys(CharSequence[]) in the type WebElement is not applicable for the arguments (String)

Question

I am trying to send a String to the sendkeys() method, but it is not accepting and throwing an error as

my codes follows:

package healthcare;

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.support.ui.Select;

import com.thoughtworks.selenium.Selenium;
import com.thoughtworks.selenium.webdriven.WebDriverBackedSelenium;

public class MailRegister_Webdriver {
    public WebDriver driver;
    public Selenium selenium;
    public void openURL(){
//System.setProperty("webdriver.chrome.driver", "F:\Library\chromedriver.exe");       
driver=new FirefoxDriver();
selenium=new WebDriverBackedSelenium(driver, "http://mail.in.com");
driver.get("http://mail.in.com");
    }
    public void register() throws Exception{
//driver.findElement(By.cssSelector("input.registernow")).click();
selenium.click("css=input.registernow");
Thread.sleep(3000);
driver.findElement(By.id("fname")).sendKeys("Nagesh");
selenium.select("day", "10");
selenium.select("month", "Jun");
new Select(driver.findElement(By.id("year"))).selectByVisibleText("1999");
Thread.sleep(1000);
driver.findElement(By.xpath("(//input[@name='radiousername'])[5]")).click();    
Thread.sleep(2000);
        driver.findElement(By.id("password")).sendKeys("nag123");
        driver.findElement(By.id("repassword")).sendKeys);
        driver.findElement(By.id("altemail")).sendKeys();
        driver.findElement(By.id("mobileno")).sendKeys("7894561230");
        driver.findElement(By.id("imageField")).click();
}

    public static void main(String[] args) throws Exception {
        // TODO Auto-generated method stub
        MailRegister_Webdriver m=new MailRegister_Webdriver();
        m.openURL();
        m.register();
    }
}

Can somebody help on this, Why Sendkeys() method is not taking String values as arguments?

Answer 1

It has a simple solution. Change your compiler compliance level from 1.4 to 1.7.

Follow these steps in your eclipse:

1. Right click on your java project and select Build Path -> Click on
   Configure Build Path...
2. In project properties window, Click/select Java Compiler at the left
   panel
3. At the right panel, change the Compiler compliance level from 1.4 to 1.7
   (Select which is higher version in your eclipse)
4. Lastly Click on Apply and OK

Now check your code. it will never show the same error.