Photon infotech – Selenium Interview Questions

Here is the list of Selenium Interview Questions which are recently asked in Photon infotech company. These questions are included for both Freshers and Experienced professionals. Our Selenium Training has Answered all the below Questions.

1. What is Constructor in Java

You can define constructor in the general class. The name of the constructor and class name should be same. The syntax of the constructor resembles a method. So, it is defined a specialized method. However, it doesn’t have a return type(not even void).

The scope of the main class and general class is different. So, to execute a constructor we have to create a object of the general class into the main class.

2. Method over riding

Method over riding is declaring a method in sub class which is already present in parent class. Overriding is done so here a child class can give its own implementation to a method which is already provided by the parent class.

The method in parent class is called overridden method and the method in child class is called overriding method.

3. Why constructor used?

First of all, Constructor is a block of code that initializes the newly created object. A constructor resembles an instance method in java but it’s not a method as it doesn’t have a return type. In this case constructor and method are different. Everyone often refer constructor as special type of method in Java.

Construtor name and class name are same here,

	
public class MyClass{
   //constructor
   MyClass(){
   }
   ..

4. Interface and abstract class

Abstract class	Interface
abstract and non-abstract methods.	only abstract methods. In Java 8, it can have default and static methods also.
It doesn't support multiple inheritance.	It supports multiple inheritance.
Can have data fields	Cannot have data fields
Its very faster than the interface	Interface is slower and requires extra indirection or dereferencing
Here, Abstract methods only	Both Abstract and concrete methods
The keyword is extends.	The keyword is implements.
Abstract class members are private, protected, etc.	Members of a Java interface are public by default.

5. How to select value in a drop-down?

The two things for Selecting value in drop down,

Import the package org.openqa.selenium.support.ui.Select
Instantiate the drop-down box as an object, Select in Selenium WebDriver

6. How to handle frame in WebDriver?

The following methods are used to handle frame in Web driver,

switchTo().frame( frameNumber)
switchTo().frame( frameName)
switchTo().frame( WebElement)

7. What are the different types of frameworks?

Testing Frameworks types are,

Linear Scripting Framework
Modular Testing Framework
Library Architecture Testing Framework
Data-driven Testing Framework
Keyword Driven Testing Framework
Hybrid Testing Framework
Behavior Driven Development Testing Framework

8. When should I use Selenium Grid?

The Selenium Grid is used by executing different versions of browsers simultaneously.Also, the Selenium Grid is used by executing different versions of OS simultaneously.

If we have Selenium enabled machines in 5 such machines and we have 100 test cases the execution time is reduced by 5 times. Hence it increases the batch processing time.

9. Which is the latest Selenium tool?

The latest Selenium tool is Selenium 4.0

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10. Static methods

Static methods are defined by methods in Java that can be called without creating an object of class. They are referenced by the class name itself or reference to the Object of that class

For Example:

	
public void AnyClassName(Str name)
{
//Execution Code....
}

11. How failure test cases are handled in selenium?

4 Steps to Follow the test cases are handled in selenium,

To Create testng. xml file under your project folder
Right click on the testng. xml - Run As - TestNG suite
Then, test-output folder - testng-failed. xml file will be created
Finally Right click on testng-failed

12. Why This is used?

Selenium is used to automate the testing across different web browsers. It supports various browsers like Chrome, Mozilla, Firefox, Safari, and IE.

Also, Selenium web driver is very easy to automate different types of web browsers. A toolbox to make the life of a software tester that much easier.

13. TestNG attributes

TestNG attributes are, you can write tests in TestNG, then you will either mark your whole class with the @Test annotation or attach this annotation to every method you will run tests from. Finally it allows for a bit of customization and differentiation among tests, by adding different values to the test attributes.

Test attributes are @Test specific, and are to be specified right next to the @Test annotation.

Top most attributes are,

Description
timeOut
priority
dependsOnMethods
enabled
groups

14. How to type in a textbox using Selenium?

First of all, we need to apply sendKeys() method.

Syntax for type in textbox:

	
driver.findElement(By.id("text-bx")).sendKeys("CredoSystemz")

Code:

	
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import java.util.concurrent.TimeUnit;
public class InputTxt{
   public static void main(String[] args) {
      System.setProperty("webdriver.chrome.driver",
      "C:\\Users\\Credo\\Desktop\\Java\\chromedriver.exe");
      WebDriver driver = new ChromeDriver();
      String url = " https://www.credosystemz.com/";
      driver.get(url);
      driver.manage().timeouts().implicitlyWait(5, TimeUnit.SECONDS);
      // identify element and input text inside it
      WebElement l =driver.findElement(By.className("gsc-input"));
      l.sendKeys("Selenium");
      driver.quit();
   }
}

15. What are the testing types that can be supported by Selenium?

There are two types of testing is supported by Selenium,

Functional Testing
FRegression Testing

16. What is Selenese?

The set of selenium commands that are used to test your web application which is called Selenese. The Selenese are used to find the Software tester can test the broken links, existence of some object on the UI, Ajax functionality, Alerts, window, list options, etc.,

Selenium command tells selenium automation engine to perform certain tasks such as Actions, Accessors, Assertions

17.What is an Xpath?

XPath stands for XML Path Language. It contains over 200 built-in functions. In XSLT standard Xpath is the major element also can be used to navigate through elements and attributes in an XML document.

In XML path expression Xpath syntax “path like” is used to find any element on a XML path expression.

18. How to get the number of frames on a page?

The below code can be used to identify the number of frames on a page:

	
size = driver. findElements(By. tagName("iframe")). size();    // prints the total number of frames

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TOP MNC's SELENIUM INTERVIEW QUESTIONS & ANSWERS

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