SightSpectrum Technology Solutions Software Trainee Interview Questions and Answers

Q1. What is four pillars of oops concepts
Ans. 
Encapsulation, Inheritance, Polymorphism, Abstraction
• Encapsulation: Bundling data and methods that operate on the data into a single unit

• Inheritance: Ability of a class to inherit properties and behavior from another class

• Polymorphism: Ability to present the same interface for different data types

• Abstraction: Hiding the complex implementation details and showing only the necessary features
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Q2. Different between array and collection
Ans. 
Arrays are fixed in size and store elements of the same data type, while collections are dynamic in size and can store elements of different data types.
• Arrays have a fixed size, while collections can dynamically resize.

• Arrays store elements of the same data type, while collections can store elements of different data types.

• Arrays use indexes to access elements, while collections use iterators or other methods.

• Examples:...read more
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Q1. OOPS , multi thread, exception
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Q2. Java 8 features
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Moderate round . Easy to clear

Q1. Explain stream api
Ans. 
Stream API is a feature in Java that allows processing collections of objects in a functional style.
• Stream API provides a way to perform operations on a collection of objects in a declarative way.

• It supports functional-style operations like map, filter, reduce, and forEach.

• Streams can be created from various sources like collections, arrays, or I/O channels.

• Stream operations are lazy, meaning they are only executed whe...read more
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Q2. Data base connection in sprinh boot
Ans. 
Database connection in Spring Boot is configured using application.properties or application.yml file.
• Define database connection properties in application.properties or application.yml file

• Use @EnableJpaRepositories annotation to enable JPA repositories

• Use @Entity annotation to define entity classes

• Use @Autowired annotation to inject the DataSource or EntityManager
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Q1. Why you want to join in mgs
Ans. 
I want to join MGS because of its reputation for cutting-edge technology and innovative projects.
• Exciting opportunities for growth and learning

• Strong focus on technology and innovation

• Desire to work with talented and passionate individuals

• Alignment with company values and culture
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Q2. Notice period days
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Online aptitude test on basic mcqs

Q1. Core java, springboot, microservices, mysql questions
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Q2. Oops, collections questions
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Q3. Multithreading questions
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Q4. Exception questions
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Difficulty level is medium

Q1. Medium about java and database
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Q1. Medium level - about project
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Q1. Java coding and development
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Q2. Db and development skills
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Q1. 1mcq 2techincal Hr 3.coding 4.manager round 5.hr
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Q2. Java basics,oops,collection,sql joins
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