Provide an example of a step definition file in Cucumber.

package stepDefinitions;

import io.cucumber.java.After;
import io.cucumber.java.Before;
import io.cucumber.java.en.Given;
import io.cucumber.java.en.When;
import io.cucumber.java.en.Then;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.By;
import static org.testng.Assert.*;

public class LoginStepDefinitions {

    WebDriver driver;

    @Before
    public void setUp() {
        driver = new ChromeDriver();
        driver.manage().window().maximize();
    }

    // Maps to: Given the user opens Chrome browser and launches the application
    @Given("the user opens Chrome browser and launches the application")
    public void openBrowser() {
        driver.get("https://www.example.com");
    }

    // Maps to: When the user enters the username "admin"
    @When("the user enters the username {string}")
    public void enterUsername(String username) {
        driver.findElement(By.id("username")).sendKeys(username);
    }

    // Maps to: And the user enters the password "Admin@123"
    @When("the user enters the password {string}")
    public void enterPassword(String password) {
        driver.findElement(By.id("password")).sendKeys(password);
    }

    // Maps to: And the user clicks on the Login button
    @When("the user clicks on the Login button")
    public void clickLogin() {
        driver.findElement(By.id("loginBtn")).click();
    }

    // Maps to: Then the user should be on the dashboard
    @Then("the user should be on the dashboard")
    public void verifyDashboard() {
        String title = driver.getTitle();
        assertTrue(title.contains("Dashboard"), "Dashboard not loaded. Title: " + title);
    }

    @After
    public void tearDown(io.cucumber.java.Scenario scenario) {
        if (scenario.isFailed()) {
            // Take screenshot on failure
            byte[] screenshot = ((org.openqa.selenium.TakesScreenshot) driver)
                .getScreenshotAs(org.openqa.selenium.OutputType.BYTES);
            scenario.attach(screenshot, "image/png", "Failure Screenshot");
        }
        if (driver != null) {
            driver.quit();
        }
    }
}

// The step below corresponds to feature file step:
// Given "^Open Chrome browser and launch the application$"
@Given("^Open Chrome browser and launch the application$")
public void openBrowser() {
    driver = new ChromeDriver();
    driver.manage().window().maximize();
    driver.get("www.facebook.com");
}