GS Lab Interview Questions, Process, and Tips

Q1. Java questions related to threading, exception handling
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Q2. Oops questions and scenarios, problem solving
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Q1. Structure vs union, memory allocation in c, variable parameter function in c, string function in c
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Q2. Cpp polymorphism, inheritance, virtual function,
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Q1. Question was regardng Java, Springboot and AngularJs. Depend on profile
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Q2. Java 8 related question
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Q3. Spring boot related questions
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Q4. Have to write SQL query
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Q1. Two Sum Problem
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Q2. Internal working of Hashmap
Ans. 
Hashmap is a data structure that stores key-value pairs and uses hashing to quickly retrieve values based on keys.
• Hashmap internally uses an array to store key-value pairs.

• It uses a hash function to map keys to indices in the array.

• Collision resolution techniques like chaining or open addressing are used to handle collisions.

• Hashmap provides O(1) average time complexity for insertion, deletion, and lookup operations.
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Q1. Oops Java exception string
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Q2. What is opps and explain
Ans. 
OOPs stands for Object-Oriented Programming. It is a programming paradigm based on the concept of objects.
• OOPs focuses on creating objects that contain both data and methods to manipulate that data.

• It emphasizes concepts like encapsulation, inheritance, polymorphism, and abstraction.

• Examples of OOP languages include Java, C++, and Python.
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Q3. What is difference between final finally
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final is a keyword used to declare a constant value, while finally is a block of code that is always executed in a try-catch-finally block.
• final is used to declare a constant value that cannot be changed, while finally is a block of code that is always executed after a try block, whether an exception is thrown or not.

• final is used in variable declarations, method parameters, and method declarations to make them unchang...read more
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Q1. Question were based on Java 8, Spring Boot, SQL and Spring security
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Q2. Coding question on Array and HashMap
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Q1. Question were based on projects and Java 8.
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Q1. Where do you see yourself after 5 years?
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Q2. What do you know about GS Lab?
Ans. 
GS Lab is a software engineering company specializing in product development and digital transformation.
• GS Lab is known for its expertise in software product development and digital transformation solutions.

• They have a strong focus on innovation and use cutting-edge technologies to deliver high-quality software solutions.

• GS Lab works with clients across various industries, including healthcare, finance, and technology.

• ...read more
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1 hr test with profit loss,work questions