Interview Questions for #QA #SDET role 1. What have you done still now as part of your IT experience? 2. Do you know OOPs concepts and in a framework where and how you have implemented it? 3. Can we declare a private class? 4. What is the difference between == and equals? 5. How is the string immutable? 6. Where strings get stored and where does the reference get stored? 7. Can you please explain with reference the memory location of how the string is immutable? 8. If you don't want to use the String class then what can be used? 9. Difference between String and StringBuffer. 10. What collections have you used? 11. Have you used HashMap? 12. List declaration? 13. Where is the Set used? 14. You have an application like Flipkart and you want to buy a pen, so you have added that item two times to the cart using an add to cart button, but in the cart, only one entry for an item should be displayed with quantity as 2, so how you’ll test this? 15. I have a table and want to store all table data Then which collection should be used and why? 16. What HashMap will return?