IBM Interview Experience for Java Developer 2024

I had an interview with IBM for the Java Developer role. Here are the questions they asked:

Round 1: Coding Test

Two Data Structures and Algorithms questions with 1 SQL based Question:

1. The stock span problem
2. Flatten a linked list with next and child pointers

SQL-based Question: Refer to this will be enough SQL Interview Questions

Round 2: Data Structure and Algorithm Round

Again One Data Structure and Algorithm questions with java based questions:

1. Find the common elements of three sorted arrays

Java-Based Questions: Refer to this will be enough Java Questions

Round 3: Data Structure and Algorithm Round 2

Again One Data Structure and Algorithm questions with project-based questions:

1. Maximum sum increasing subsequence

— interviewer not happy with my solution and ask for optimal solution at that time I am not able to optimal my solution.

Springboot Based Questions:

1. Why Spring Boot over Spring?
2. Can we override or replace the Embedded tomcat server in Spring Boot?
3. What is the difference between @RestController and @Controller in Spring Boot?
4. What is an IOC container?

Overall, the last round not went very well as interviewer expecting optimal solution.

Got Rejection!