Coder Baba
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Everything about programming for beginners.
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๐—ฆ๐—ฒ๐—น๐—ฒ๐—ป๐—ถ๐˜‚๐—บ ๐—ช๐—ฒ๐—ฏ๐——๐—ฟ๐—ถ๐˜ƒ๐—ฒ๐—ฟ ๐—•๐—ฎ๐˜€๐—ถ๐—ฐ ๐—ค๐˜‚๐—ฒ๐˜€๐˜๐—ถ๐—ผ๐—ป๐˜€
โœ…1. What is Selenium?
โœ…2. Difference between Selenium 3 and Selenium 4?
โœ…3. What are the different types of locators in Selenium?
โœ…4. Difference between findElement() and findElements()?
โœ…5. How do you handle dropdowns in Selenium?
โœ…6. How to handle multiple windows in Selenium?
โœ…7. What is the difference between get() and navigate().to()?
โœ…8. How do you handle alerts ?
โœ…9. How do you handle frames and iframes?
โœ…10. What is the difference between driver.quit() and
driver.close()?

๐—ฆ๐—ฒ๐—น๐—ฒ๐—ป๐—ถ๐˜‚๐—บ ๐—ช๐—ฒ๐—ฏ๐——๐—ฟ๐—ถ๐˜ƒ๐—ฒ๐—ฟ ๐—”๐—ฑ๐˜ƒ๐—ฎ๐—ป๐—ฐ๐—ฒ๐—ฑ ๐—ค๐˜‚๐—ฒ๐˜€๐˜๐—ถ๐—ผ๐—ป๐˜€
โœ…11. What are the different types of waits in Selenium?
โœ…12. Implicit vs Explicit Wait - What's the difference?
โœ…13. What is Fluent Wait, and when do you use it?
โœ…14. How do you handle 'StaleElement ReferenceException'?
โœ…15. What is JavaScriptExecutor? How do you use it?
โœ…16. How do you scroll a webpage using Selenium?
โœ…17. How do you take a screenshot in Selenium?
โœ…18. How do you handle file uploads in Selenium?
โœ…19. How do you validate broken links in Selenium?
โœ…20. How do you capture network logs in Selenium?

๐—ฆ๐—ฒ๐—น๐—ฒ๐—ป๐—ถ๐˜‚๐—บ ๐—™๐—ฟ๐—ฎ๐—บ๐—ฒ๐˜„๐—ผ๐—ฟ๐—ธ ๐—ค๐˜‚๐—ฒ๐˜€๐˜๐—ถ๐—ผ๐—ป๐˜€ ๐—ณ๐—ผ๐—ฟ ๐—•๐—ฒ๐˜€๐˜ ๐—ฃ๐—ฟ๐—ฎ๐—ฐ๐˜๐—ถ๐—ฐ๐—ฒ๐˜€
โœ…21. What is the Page Object Model (POM)?
โœ…22. What is Page Factory? How is it different from POM?
โœ…23. What are different exceptions you faced while working in framework ?
โœ…24. What are Selenium Grid and its advantages?
โœ…25. How do you handle dynamic elements in Selenium?
โœ…26. What is the role of `Desired capabilities in Selenium?
โœ…27. What are the different types of Assertions used in
Selenium?
โœ…28. What are the limitations of Selenium WebDriver?
โœ…29. How do you integrate Selenium with TestNG
โœ…30. What are TestNG Listeners, and how do you implement them?

๐—ฆ๐—ฒ๐—น๐—ฒ๐—ป๐—ถ๐˜‚๐—บ ๐—พ๐˜‚๐—ฒ๐˜€๐˜๐—ถ๐—ผ๐—ป๐˜€
โœ…31. How do you run Selenium tests in headless mode?
โœ…32. How do you handle authentication pop-ups in Selenium?
โœ…33. How to execute parallel tests in Selenium?
โœ…34. How do you handle CAPTCHA in Selenium? Possible ?
โœ…35. What are the different ways to maximize a browser
window in Selenium?
โค2
โžก๏ธ Tech Stack & Languages You should Learn in 2025:

1-๐Ÿ”ฅ Frontend : React React Native
2-๐Ÿ–ฅ Backend : Node.js Express.js MongoDB
3-๐Ÿ’ป Languages : JavaScript TypeScript Python
4-๐Ÿง  AI & ML : TensorFlow PyTorch Scikit-learn
โค4
๐—ค๐—” ๐—”๐˜‚๐˜๐—ผ๐—บ๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐—œ๐—ป๐˜๐—ฒ๐—ฟ๐˜ƒ๐—ถ๐—ฒ๐˜„ ๐—ค๐˜‚๐—ฒ๐˜€๐˜๐—ถ๐—ผ๐—ป๐˜€

๐—ค๐˜‚๐—ฒ๐˜€๐˜๐—ถ๐—ผ๐—ป๐˜€:
1. What is WebDriverManager, and how does it assist in Selenium automation?
2. What are the differences between Implicit Wait, Explicit Wait, and Fluent Wait in Selenium?
3. What is the XPath syntax to select the following siblings?
4. How can reports be generated using Maven in Selenium projects?
5. What is the difference between Scenario Outline and Data Tables in Cucumber?
6. If multiple feature files contain the same set of steps, such as Login and Logout, how can this repetition be avoided in a Cucumber feature file?
7. What is the purpose of Background in Cucumber, and how is it used?
8. How do you schedule jobs in Jenkins for continuous integration and testing?
9. What are the key differences between a List and a Set in Java?
10. What is the difference between an Array and a Linked List in Java?
11. Can you write a Java program to find duplicate characters in a given string?
12. How does the Binary Search algorithm work, and can you explain it with an example?
13. Write a Java program to check if a given string is a palindrome.
14. What do the HTTP status codes 500 and 401 represent?
15. What is the difference between the HTTP methods POST and PUT in terms of API usage?
โค1
Most Asked Must-Know String + Array Interview Questions

String-Based Questions
1. Reverse a string โ€” without using built-ins.
2. Is it a palindrome? Let's find out.
3. Remove duplicates from a string โ€” efficiently.
4. First non-repeating character โ€” who stands alone?
5. Count how many times each character appears.
6. Flip the words in a sentence, not the letters.
7. Are two strings anagrams? Prove it.
8. Longest substring without repeats โ€” sliding window style.
9. Build your own atoi โ€” string to integer.
10. Compress strings with run-length encoding.
11. Most frequent character โ€” who dominates?
12. List all possible substrings of a string.
13. Is one string a rotation of another?
14. Strip all white spaces from a string.
15. Is this a valid shuffle of two strings?
16. Convert text to Title Case โ€” properly.
17. Find the longest common prefix among words.
18. Break a string into a char array โ€” without confusion.
19. Replace spaces with %20 โ€” classic URL trick.
20. Turn full sentences into acronyms.
21. Check if the string is all digits โ€” no alphabets allowed.
22. Count how many words are in the string.
23. Remove a specific character โ€” cleanly.
24. Find the shortest word in a sentence.
25. Longest palindromic substring โ€” two-pointer style.

Array-Based Questions
26. Reverse an array in-place.
27. Find the largest and smallest element.
28. Check for duplicates in an array.
29. Remove duplicates โ€” return only unique values.
30. Find the missing number from 1 to N.
31. Move all zeros to the end โ€” keep order.
32. Rotate the array left/right by K positions.
33. Find the Kth largest/smallest element.
34. Merge two sorted arrays โ€” without using extra space.
35. Find the intersection of two arrays.
36. Sort 0s, 1s, and 2s without using sort().
37. Find subarrays with a given sum.
38. Detect if a subarray sums to 0.
39. Find the longest increasing subsequence.
40. Kadaneโ€™s Algorithm โ€” maximum subarray sum.
41. Check if array is sorted and rotated.
42. Rearrange array in max-min order alternately.
43. Find leaders in an array (no greater element to the right).
44. Calculate frequency of all elements in O(n).
45. Product of all elements except self.
โค2
Mastering Docker2025.pdf
457 KB
200 Docker Commands PDF๐Ÿ‘†
โค1
I got multiple offers and these are the most asked repeatedly String + Array Interview Questions list

String-Based Questions
1. Reverse a string โ€” without using built-ins.
2. Is it a palindrome? Let's find out.
3. Remove duplicates from a string โ€” efficiently.
4. First non-repeating character โ€” who stands alone?
5. Count how many times each character appears.
6. Flip the words in a sentence, not the letters.
7. Are two strings anagrams? Prove it.
8. Longest substring without repeats โ€” sliding window style.
9. Build your own atoi โ€” string to integer.
10. Compress strings with run-length encoding.
11. Most frequent character โ€” who dominates?
12. List all possible substrings of a string.
13. Is one string a rotation of another?
14. Strip all white spaces from a string.
15. Is this a valid shuffle of two strings?
16. Convert text to Title Case โ€” properly.
17. Find the longest common prefix among words.
18. Break a string into a char array โ€” without confusion.
19. Replace spaces with %20 โ€” classic URL trick.
20. Turn full sentences into acronyms.
21. Check if the string is all digits โ€” no alphabets allowed.
22. Count how many words are in the string.
23. Remove a specific character โ€” cleanly.
24. Find the shortest word in a sentence.
25. Longest palindromic substring โ€” two-pointer style.

Array-Based Questions
26. Reverse an array in-place.
27. Find the largest and smallest element.
28. Check for duplicates in an array.
29. Remove duplicates โ€” return only unique values.
30. Find the missing number from 1 to N.
31. Move all zeros to the end โ€” keep order.
32. Rotate the array left/right by K positions.
33. Find the Kth largest/smallest element.
34. Merge two sorted arrays โ€” without using extra space.
35. Find the intersection of two arrays.
36. Sort 0s, 1s, and 2s without using sort().
37. Find subarrays with a given sum.
38. Detect if a subarray sums to 0.
39. Find the longest increasing subsequence.
40. Kadaneโ€™s Algorithm โ€” maximum subarray sum.
41. Check if array is sorted and rotated.
42. Rearrange array in max-min order alternately.
43. Find leaders in an array (no greater element to the right).
44. Calculate frequency of all elements in O(n).
45. Product of all elements except self.


Stay curious, keep learning, and keep sharing!
โค1
๐Ÿ‘1
#Selenium related Interview Questions for #Automation #Testers:

๐Ÿ”นBasic Level:
1. What is Selenium?
2. What are the components of the Selenium suite?
3. What are the advantages of using Selenium?
4. What are the different types of locators in Selenium?
5. What is the difference between findElement() and findElements()?
6. How do you handle dynamic web elements in Selenium?
7. What are the different types of waits in Selenium?


๐Ÿ”นIntermediate Level:
1. What are the different types of WebDriver APIs available in Selenium?
2. How do you handle alerts and pop-up windows in Selenium?
3. What is the Page Object Model (POM)?
4. How do you handle iframes in Selenium?
5. How do you take screenshots in Selenium?
6. How do you handle file uploads in Selenium?
7. What are some common exceptions in Selenium WebDriver?


๐Ÿ”นAdvanced Level:
1. How do you implement a data-driven framework in Selenium?
2. How do you integrate Selenium with TestNG or JUnit?
3. What is Selenium Grid? How does it work?
4. How do you handle cookies in Selenium?
5. How do you perform cross-browser testing with Selenium?
6. What are some best practices for writing Selenium tests?


๐Ÿ”นCoding Challenges:

1. Write a program to select a value from a dropdown list.
2. Write a program to handle a JavaScript alert.
3. Write a program to perform a drag and drop operation.
4. Write a program to take a screenshot of a web page.

๐Ÿ˜Š ๐Ÿ˜Š ๐Ÿ˜Š

#AutomationTesting #ManualTesting#QA #QualityAssurance #Testing #Skill #InterviewQuestions #selenium
โค2
1960s: "Typewriter aaya, ab likhne ke liye itne log nahi lagenge!" ๐Ÿ“
1990s: "Computer aaya, ab 1000 ki jagah sirf 100 log kaam karenge!" ๐Ÿ’ป
2020s: "AI aayi, ab 100 ki jagah sirf 10 log kaam karenge!" ๐Ÿค–
2030s: "AI ne sochna bhi shuru kiya, ab boss bhi ghar baithega!" ๐Ÿง 
2035s: "AI ne AI bana liyaโ€ฆ ab company me sirf WiFi router bacha hai!" ๐Ÿ“ก
2040s: "WiFi bhi chala gayaโ€ฆ ab bas ek board laga hai โ€“ 'Company thi yahan'" ๐Ÿšช

๐Ÿ’ก Moral of the story:
Work smart, adapt faster, and never underestimate the WiFi router. ๐Ÿ˜…

#AI #Automation #FutureOfWork #TechHumor #OfficeJokes #WorkLife #DigitalTransformation #CodingTutorial
โค7
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