How to Create WebDriver Instance in Selenium: Simple Guide

To create a WebDriver instance in Selenium, you first import the driver class for your browser (like ChromeDriver), then create an object of that class using new ChromeDriver(). This object controls the browser during your automated tests.

Syntax

Creating a WebDriver instance involves importing the browser driver class and initializing it. For example, for Chrome:

• Import: Import the ChromeDriver class from Selenium.
• Instantiate: Use new ChromeDriver() to create the driver object.
• Assign: Store the object in a WebDriver variable to control the browser.

java

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;

public class Test {
    public static void main(String[] args) {
        System.setProperty("webdriver.chrome.driver", "/path/to/chromedriver");
        WebDriver driver = new ChromeDriver();
    }
}

Example

This example shows how to create a Chrome WebDriver instance, open a website, and then close the browser.

java

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;

public class OpenGoogle {
    public static void main(String[] args) {
        System.setProperty("webdriver.chrome.driver", "/path/to/chromedriver");
        // Create WebDriver instance for Chrome
        WebDriver driver = new ChromeDriver();

        // Open Google homepage
        driver.get("https://www.google.com");

        // Print page title
        System.out.println("Page title is: " + driver.getTitle());

        // Close the browser
        driver.quit();
    }
}

Output

Page title is: Google

Common Pitfalls

Common mistakes when creating a WebDriver instance include:

• Not setting the browser driver executable path, which causes errors.
• Using the wrong driver class for the browser.
• Not closing the driver properly, leaving browser windows open.

Always ensure the driver executable (like chromedriver) is in your system PATH or set via System.setProperty.

java

/* Wrong way: Missing driver path setup */
// WebDriver driver = new ChromeDriver(); // This may fail if chromedriver path is not set

/* Right way: Set driver path before creating instance */
System.setProperty("webdriver.chrome.driver", "/path/to/chromedriver");
WebDriver driver = new ChromeDriver();

Quick Reference

Remember these key points when creating a WebDriver instance:

• Import the correct driver class for your browser.
• Set the driver executable path if needed.
• Instantiate the driver with new.
• Use the driver object to control the browser.
• Close the driver with quit() after tests.

Key Takeaways

Always import and instantiate the correct browser driver class to create a WebDriver instance.

Set the browser driver executable path before creating the WebDriver to avoid errors.

Use the WebDriver object to open URLs and control the browser.

Close the WebDriver with quit() to free resources and close the browser.

Check your browser and driver versions for compatibility.