Where do we use interface in selenium?

Right click on package and go to -> New -> Interface. Class that implements an interface must implement all the methods declared in the interface. Now our FirefoxDriver class should implement all the methods declared inside an WebDriver interface, same is the case with ChromeDriver or IEDriver classes.

What is interface where you have used in framework?

It means we are creating a reference variable (driver) of the interface (WebDriver) and creating an Object. Here WebDriver is an Interface as mentioned earlier and FirefoxDriver is a class. An interface in Java looks similar to a class but both the interface and class are two different concepts.

What are the five interfaces we use in selenium?

A few of them are as below:

• Alert.
• Capabilities.
• ContextAware.
• HasCapabilities.
• JavascriptExecutor.
• OutputType.
• Rotatable.
• SearchContext.

Where do we use interface and abstract class in selenium?

If the functionality we are creating will be useful across a wide range of disparate objects, use an interface. Abstract classes should be used primarily for objects that are closely related, whereas interfaces are best suited for providing a common functionality to unrelated classes.

What is interface vs Abstract Class?

Difference between abstract class and interface

Abstract class	Interface
2) Abstract class doesn’t support multiple inheritance.	Interface supports multiple inheritance.
3) Abstract class can have final, non-final, static and non-static variables.	Interface has only static and final variables.

What are the uses of interface?

Why do we use interface?

• It is used to achieve total abstraction.
• Since java does not support multiple inheritance in case of class, but by using interface it can achieve multiple inheritance .
• It is also used to achieve loose coupling.
• Interfaces are used to implement abstraction.

Is alert a interface?

Alerts are basically an interface between the current web page and UI. It can also be defined as a small message box which displays an on-screen notification to give the user some kind of information or ask for permission to perform a certain kind of operation.

Where did you use abstract class in your project?

When we have the requirement of a class that contains some common properties or methods with some common properties whose implementation is different for different classes, in that situation, it’s better to use Abstract Class then Interface.

Where do we use interface in Selenium WebDriver?

Here, WebDriver Is Interface and FirefoxDriver and ChromeDriver are the class files where WebDriver Interface Is Implemented. So if someone asks you,Where you have used interface in your selenium project, You can simply say while initializing any browser using selenium webdriver.

What language do you use in your Selenium project?

In our Selenium Project we are using Java language. Even though Selenium supports multiple languages, we are using Java language is just because most of the automation developers have knowledge on Selenium with Java. Type of Framework: In our project, we are using Data-driven Framework by using Page Object Model design pattern with Page Factory.

What is an abstract class in Selenium WebDriver?

This is the way architecture is designed for Selenium Webdriver. An abstract class is similar to interface, like we cannot instantiate them, and they may contain a mix of methods declared with or without an implementation.

What are override methods in Selenium WebDriver?

Selenium WebDriver provides various interfaces (such as IWebElement, WebDriver, and SearchContext, etc.), which can be implemented to override the vast number of methods provided by Selenium WebDriver. Most test automation services tend to use overridden methods for implementation for Selenium WebDriver.