What is Step Definition?

Step Definition is a java method in a class with an annotation above it.
An annotation followed by the pattern is used to link the Step Definition to all the matching Steps, and the code is what Cucumber will execute when it sees a Gherkin Step.
Cucumber finds the Step Definition file with the help of the Glue code in Cucumber Options.

Create a new Class file in the ‘stepDefinition‘ package and name it as ‘Test_Steps‘, by right click on the Package and select New > Class

@Given("^User is on Home Page$")
        public void user_is_on_Home_Page() throws Throwable {
                driver = new FirefoxDriver();
        driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
        driver.get("https://www.store.demoqa.com");
                }