1. Internal Working of HashMap 2. Explain SOLID Principles 3. Explain ACID properties in Java 4. Explain Java 8 Streams, and one simple problem where you are asked to convert one type of stream to another type of stream. 5. Difference between Comparator and Comparable 6. Difference between Runnable and Callable 7. Service discovery pattern in microservices 8. How can we add custom actuator URL 9. How do you resolve GIT conflicts 10 Use of mockito in Junit

Question

Accepted Answer

Interview questions for Software Development Lead

Internal working of HashMap involves hashing and collision resolution
SOLID principles are Single Responsibility, Open-Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion
ACID properties in Java stand for Atomicity, Consistency, Isolation, and Durability
Java 8 Streams provide a functional way of processing collections. Example: converting a list of strings to uppercase
Comparable is used to define natural ordering of objects, while Comparator is used to define custom ordering
Runnable is a functional interface with a run() method, while Callable is a functional interface with a call() method that returns a result
Service discovery pattern in microservices involves a registry where services can register and discover each other
Custom actuator URL can be added by extending the Actuator endpoint and registering it with the Actuator
GIT conflicts can be resolved by merging or rebasing changes, or by resolving conflicts manually
Mockito is a Java mocking framework used in Junit for testing