Mastering Java Stream API: Ace Your Interviews!

Welcome to another new series on Java Stream API!

In this series, we’ll explore the fundamentals of the Stream API and prepare you to confidently tackle common Stream API questions in technical interviews. Learn these concepts with ease and solve real problems like a pro!

The series covers:

• Stream API Introduction – Understand the basics, key concepts, and how streams work in Java.

• Stream API Interview Questions – Practice commonly asked interview questions and learn how to approach them effectively.

1. Move all the zeros at the end

2. Duplicate characters in a list of string

3. Duplicates in an integer array

4. Generate stream of random numbers

5. Count string by its length

6. Duplicate characters in a string

7. Remove null values from a list

8. Longest string in a list of strings

9. Average age from a list of persons

10. Merge two lists into a single sorted list

11. Common values from two lists

12. Remove duplicates while preserving order

13. Sum of transaction amounts for each day

14. Kth smallest element in an array

15. Frequency of words in a list

16. Even and odd numbers in a list

17. Numbers starting with 1 in a list

18. Maximum value in a list of integers

19. First non-repeated character in a string

20. Group strings with same characters