Infosys Quality Assurance and Automation Tester Interview Questions and Answers

Q1. Java, selenium, testng
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Q2. Oops concept of java
Ans. 
Oops concept of java refers to Object-Oriented Programming principles like Inheritance, Encapsulation, Polymorphism, and Abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Polymorphism: Ability of a method to do different things based on the object it is acting upon.

• Abstraction: Hiding the imp...read more
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Q1. Write code to implement and explicit wait in Selenium
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Q2. Write code to implement Robot class in java
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Q3. How would you locate the Xpath for the "Today's Deal" menu item on Amazon
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Q4. What will be the memory allocation for the code String str1 = "Automation"; String str2 = new String("Automation");
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Q5. What is the difference between str1==str2 and str1.equals(str2)
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Q6. Meaning of status code 401 and 502
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Q7. Print first 4 letter and last 4 letter of String str="www.amazon.com"
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Q1. Diff between background and hooks
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Q2. Real time interface uses in your framework
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Q3. Occurances of a character in a string
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Q1. Locate elements
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Q2. Window handling
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Q1. Project explanation
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Q2. Domain experience
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1.30 hours, Java, selenium

Q1. Java program to compare 2 strings and check if both matching Selenium Code for Drag and Drop images Selenium code for selecting all the elements from the dropdown Java concepts: OOPs, Inheritance(Multiple ...read more
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Q1. AI Generated interview which is same a face-to-face interview. Questions asked on Java concepts, Selenium concepts
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Q1. What is the output of below code class Animal{ Animal(){ System.out.println("animal is created") } class Dog extends Animal{ Dog(){ System.out.println("Dog is created")} class TestSuper4{ pub...read more
Ans. 
The output of the code will be 'animal is created' followed by 'Dog is created'.
• The code defines a class Animal with a constructor that prints 'animal is created'.

• It also defines a class Dog that extends Animal, with a constructor that prints 'Dog is created'.

• In the main method, an instance of Dog is created, which will trigger the constructors of both Animal and Dog classes.
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Q2. Output of this : System.out.println(10+20+"Hello"+30+40) - Explain
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Q3. Output of this : String name="Hello"; name=name+"There"; system.out.println(name)
Ans. 
The output will be 'HelloThere'
• Concatenation of 'Hello' and 'There' results in 'HelloThere'

• The final string is printed using System.out.println()
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Q4. StringBuffer buffer=new StringBuffer("Hello") buffer.append("There"); System.out.println(buffer);
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The code creates a StringBuffer object with 'Hello' and appends 'There' to it before printing the final string.
• StringBuffer is mutable, so the original 'Hello' string can be modified

• The append() method adds the specified string to the end of the buffer

• The final output will be 'HelloThere'
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Q5. Which is valid or invalid a. ChromeDriver driver=new ChromeDriver(); b. WebDriver driver=new ChromeDriver(); c. WebDriver driver2=new WebDriver(); driver2=new ChromeDriver();
Ans. 
Option a is valid, option b is valid, option c is invalid.
• Option a is valid because ChromeDriver is a subclass of WebDriver, so it can be assigned to a WebDriver reference.

• Option b is valid because ChromeDriver is a subclass of WebDriver, so it can be instantiated using a WebDriver reference.

• Option c is invalid because WebDriver is an interface and cannot be instantiated directly. It can only be used as a reference typ
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Q6. Program to sort the input in descending order without using inbuild method/functions
Ans. 
Sort input array of strings in descending order without using inbuilt functions
• Iterate through the array and compare each element with the rest to find the largest element

• Swap the largest element with the first element, then repeat the process for the remaining elements

• Continue this process until the array is sorted in descending order
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Q7. Difference between findElement and findElements
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findElement returns the first matching element on the page, while findElements returns a list of all matching elements.
• findElement returns a single WebElement matching the locator provided

• findElements returns a list of WebElements matching the locator provided

• findElement will throw NoSuchElementException if no element is found, while findElements will return an empty list
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Q8. Difference between getwindowhandle and getwindowhandles() and what is output type

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getwindowhandle returns the handle of the current window, getwindowhandles() returns handles of all open windows

• getwindowhandle returns a single window handle, while getwindowhandles() returns a set of window handles

• getwindowhandle is used to switch between windows in Selenium WebDriver

• Output type of getwindowhandle is String, while output type of getwindowhandles() is Set

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