The path to the driver executable must be set by the webdriver.chrome.driver system property;

Question

Exception in thread "main" java.lang.IllegalStateException: The path to the driver executable must be set by the webdriver.chrome.driver system property; for more information, see https://github.com/SeleniumHQ/selenium/wiki/ChromeDriver. The latest version can be downloaded from http://chromedriver.storage.googleapis.com/index.html
    at com.google.common.base.Preconditions.checkState(Preconditions.java:199)
    at org.openqa.selenium.remote.service.DriverService.findExecutable(DriverService.java:109)
    at org.openqa.selenium.chrome.ChromeDriverService.access$000(ChromeDriverService.java:32)
    at org.openqa.selenium.chrome.ChromeDriverService$Builder.findDefaultExecutable(ChromeDriverService.java:137)
    at org.openqa.selenium.remote.service.DriverService$Builder.build(DriverService.java:296)
    at org.openqa.selenium.chrome.ChromeDriverService.createDefaultService(ChromeDriverService.java:88)
    at org.openqa.selenium.chrome.ChromeDriver.<init>(ChromeDriver.java:120)

Answer 1

Here is the Answer to your Question:

When you work with Selenium 3.x you have to download chromedriver.exe from here and save it in your machine. Next you have to mention the absolute path of the chromedriver.exe through System.setProperty. While you mention the absolute path of the chromedriver.exe through System.setProperty you have either provide front slashes "/" or esacpe the back slases "\\". Here is your own working code with some simple tweaks:

public class first 
{
    public static void main(String args[])
    {
        System.setProperty("webdriver.chrome.driver","C:/your_directory/chromedriver.exe");
        WebDriver dr1= new ChromeDriver(); ;
        dr1.get("http://www.google.com/");
    }
}

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