💡 Helping QA Professionals Through Interviews – Series 1 (Java Basics to Advanced)

Many talented QA engineers are impacted by recent layoffs, and I want to contribute by sharing technical interview prep material that can help you bounce back stronger.

I’ll be posting a series of guides covering Java, Automation, Testing Frameworks, API, DevOps, and more. 🚀

Let’s begin with Java – Frequently Asked Programs, often asked in interviews. I’ve classified them into 3 levels:

🔹 Beginner Level:

* Reverse a string / palindrome check

* Find factorial of a number

* Fibonacci series (iterative & recursive)

* Find largest/smallest number in an array

* Swap two numbers without using a third variable

* remove special characters from String str="!$%&2345%%^"

🔹 Intermediate Level:

* Count occurrences of each character in a string [ a> Using Stream | b> Without Stream ]

* Find duplicate elements in an array / list [ a> Using Stream | b> Without Stream ]

* Check if two strings are anagrams

* Sort an array without using built-in functions [ a> Using Stream | b> Without Stream ]

* Remove duplicates from a list [ a> Using Stream | b> Without Stream ]

🔹 Expert Level:

* Custom Comparator for complex object sorting

* Reverse words in a sentence while maintaining punctuation

* longest substring without repeating characters

* First Non-Repeating Character in a String using Stream

* Sort a HashMap by keys and values using Stream

📌 If you are preparing for interviews, follow this series and feel free to comment the topics you struggle with – I’ll try to cover them.

Let’s help each other grow during tough times. 💪

\#Java #QA #Automation #InterviewPreparation #LayoffsSupport #CareerGrowth