Sands Technologies Software Developer Interview Questions and Answers

Q1. Difference between linked list and array list
Ans. 
Linked list is a data structure where elements are stored in nodes with pointers to the next node. Array list is a dynamic array that can grow or shrink in size.
• Linked list allows for efficient insertion and deletion of elements anywhere in the list.

• Array list provides fast access to elements using index, but slower insertion and deletion compared to linked list.

• Example: Linked list - 1 -> 2 -> 3 -> 4 -> 5, Array list
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Q2. Difference between @controller and @ Rest controller
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The @Controller annotation is used for traditional MVC controllers, while @RestController is used for RESTful web services.
• The @Controller annotation is used to define a class as a Spring MVC controller, which can handle HTTP requests and return a view.

• The @RestController annotation is used to define a class as a controller for RESTful web services, which can handle HTTP requests and return data in JSON or XML format.

• T...read more
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Q1. WRITE A java program to find the shortest distance between 2 nodes in an array
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Java program to find shortest distance between 2 nodes in an array of strings
• Create a method that takes in the array of strings and the two nodes as parameters

• Use a map to store the index of each node in the array

• Calculate the distance between the two nodes using their indices in the array
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Q2. Explain oops concept
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OOPs concept is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.
• OOPs stands for Object-Oriented Programming

• Key concepts include classes, objects, inheritance, polymorphism, and encapsulation

• Classes are blueprints for creating objects, which are instances of classes

• Inheritance allows a class to inherit properties and behavior from an...read more
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Q1. Salary discussion
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Q2. Location process
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Q1. SOLID principles
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Q2. Microservice Architecture and Kafka
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Q1. Oops concept related work
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Q2. Technology used in prj
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Various technologies used in the project include Java, Spring Boot, Angular, MySQL, and Docker.
• Java

• Spring Boot

• Angular

• MySQL

• Docker
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There are some general programming questions as well as the reasoning problems in the first round they are likely to be easier.

Q1. Derive this problem statement
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Q2. How do you approach this problem
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Q3. Tell me more about the project in your resume
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Q1. Application level questions
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Q2. Role related questions
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Q1. Tell me about yourself
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Q2. Tell me about your family
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Q3. Tell me about your hobbies apart from technical things
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Logical thinking was important for preparation

Q1. About the field u chose provide with examples
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Q2. Explain about sql
Ans. 
SQL is a programming language used for managing and manipulating relational databases.
• SQL stands for Structured Query Language

• It is used to create, modify, and retrieve data from databases

• SQL is a declarative language, meaning you specify what you want to achieve rather than how to achieve it

• Common SQL commands include SELECT, INSERT, UPDATE, and DELETE

• SQL is used in various database management systems like MySQL, Orac
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Q1. The second round was also on techincal and the deep dicussion on field u chose
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Q1. Tell me about yourself
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Q2. Covered on all aspects and personality
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I was asked with writing the code and algorithms. Also lots of MySQL queries