Software Development Senior Analyst Interview Questions and Answers

Flowchart for a given problem statement

• Start with the beginning of the process

• Define decision points and actions

• Use appropriate symbols for processes, decisions, and terminators

• Connect the symbols with arrows to show the flow of the process

• Include loops or repetitions if necessary

Treemap is a sorted map based on natural ordering of keys, while hashmap is an unordered map.

• Treemap stores key-value pairs in sorted order based on the natural ordering of keys.

• Hashmap does not guarantee any specific order of key-value pairs.

• Treemap uses a red-black tree for storage and retrieval, while hashmap uses hash table.

• Treemap is slower than hashmap for most operations due to the sorting overhead.

• Example: TreeMap treeMap = new TreeMap<>(); HashMap hashMap = new HashM...read more

HashMap is a data structure that stores key-value pairs and uses hashing to efficiently retrieve values based on keys.

• HashMap internally uses an array of linked lists to store key-value pairs.

• When a key-value pair is added, the key is hashed to determine the index in the array where the pair will be stored.

• If multiple keys hash to the same index, a linked list is used to handle collisions.

• Retrieving a value involves hashing the key to find the correct index and then traversin...read more

Stream API in Java 8 provides a functional approach to processing collections of objects.

• Stream API allows for processing collections of objects in a functional style.

• It supports operations like filter, map, reduce, and collect.

• Streams can be sequential or parallel, allowing for efficient processing of large datasets.

• Example: List names = Arrays.asList("Alice", "Bob", "Charlie"); names.stream().filter(name -> name.startsWith("A")).forEach(System.out::println);

Microservices allow for modular and scalable architecture, while monolithic is simpler but can be harder to maintain.

• Microservices break down applications into smaller, independent services that communicate through APIs.

• Monolithic architecture involves building the entire application as a single unit.

• Microservices offer flexibility, scalability, and fault isolation.

• Monolithic applications are easier to develop and deploy initially.

• Examples of microservices include Netflix, Am...read more