Trianz Senior Software Engineer Interview Questions, Process, and Tips

Core Java programming concepts related to strings and collections.

• Strings in Java are objects of the String class and can be manipulated using various methods like substring, indexOf, and concat.

• Collections in Java provide data structures like List, Set, and Map for storing and manipulating groups of objects.

• Examples: String str = "Hello"; List<String> list = new ArrayList<>();

Java8 introduced several new features like lambda expressions, functional interfaces, streams, and default methods.

• Lambda expressions allow you to write more concise code by providing a way to pass functions as arguments.

• Functional interfaces are interfaces with a single abstract method, which can be implemented using lambda expressions.

• Streams provide a way to process collections of objects in a functional style.

• Defau...read more

A REST API flow involves sending a request to a server, processing the request, and receiving a response.

• Client sends a request to the server

• Server processes the request and performs necessary actions

• Server sends a response back to the client

• Example: Client sends a GET request to retrieve user data from a server

Intermediate operations return a stream and do not produce a result, while terminal operations produce a result.

• Intermediate operations are lazy and do not execute until a terminal operation is called

• Examples of intermediate operations include filter(), map(), and sorted()

• Examples of terminal operations include forEach(), reduce(), and collect()

• Terminal operations are eager and execute immediately