LTIMindtree Java Developer Interview Questions, Process, and Tips

First round is quit easy

2 coding question based on dsa

Q1. Explain different phases of sdlc
Ans. 
SDLC stands for Software Development Life Cycle, which consists of different phases from planning to maintenance.
• 1. Planning phase involves defining project scope, requirements, and creating a project plan.

• 2. Analysis phase focuses on gathering and analyzing requirements to create a detailed system design.

• 3. Design phase involves creating a high-level design, detailed design, and architecture for the software.

• 4. Implem...read more
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Q2. 4 paillers of datastructure.
Ans. 
The 4 pillars of data structure are arrays, linked lists, stacks, and queues.
• Arrays: Data structure that stores a collection of elements with a fixed size.

• Linked Lists: Data structure where each element points to the next element in the sequence.

• Stacks: Data structure that follows the Last In First Out (LIFO) principle.

• Queues: Data structure that follows the First In First Out (FIFO) principle.
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A test of a combination of aptitude, tech questions and coding.

Q1. What is JVM? what is JIT
Ans. 
JVM stands for Java Virtual Machine, which is an abstract computing machine that enables a computer to run Java programs. JIT stands for Just-In-Time compiler, which compiles Java bytecode into native machine code at runtime for improved performance.
• JVM is responsible for executing Java programs by converting Java bytecode into machine code that can be understood by the computer's operating system.

• JIT is a component of...read more
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Q2. Create a rest service using spring boot
Ans. 
Create a REST service using Spring Boot
• Create a new Spring Boot project

• Add dependencies for Spring Web and Spring Boot DevTools in pom.xml

• Create a new Java class for the REST controller with @RestController annotation

• Define request mapping annotations like @GetMapping, @PostMapping, @PutMapping, @DeleteMapping for different HTTP methods

• Implement the business logic for each endpoint

• Run the Spring Boot application and te
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Q1. When can you join?
Ans. 
I can join within 2 weeks of receiving an offer.
• I can start within 2 weeks of receiving an offer.

• My current notice period is 2 weeks.

• I am available to start immediately.
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Q2. What's your salary expectation?
Ans. 
My salary expectation is based on my experience, skills, and the market rate for Java developers.
• Consider my years of experience in Java development

• Research the average salary for Java developers in this location

• Factor in any additional skills or certifications I may have
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Coding question and mcq

Q1. Oops , spring boot & Microservice questions
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Q2. Collection hierarchy
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Q3. Microservice architecture
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Q4. Rest api questions
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Q1. Callable vs runnable?
Ans. 
Callable is used to return a result and can throw checked exceptions, while Runnable is used for void operations.
• Callable can return a result and throw checked exceptions, while Runnable cannot.

• Callable is a functional interface with a method call() that returns a result, while Runnable is a functional interface with a method run() that does not return a result.

• Example: Callable task = () -> { return 5 + 3; }; Runnable...read more
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Q2. Functional interface
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Q3. Java 8 features
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Q4. Solid principle
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Q5. Which design pattern to use for complex design?
Ans. 
Use the Strategy design pattern for complex design.
• Strategy pattern allows you to define a family of algorithms, encapsulate each one, and make them interchangeable.

• It helps in separating the behavior of a class from the class itself, making it easier to switch between different algorithms at runtime.

• Examples of using Strategy pattern include implementing different sorting algorithms in a class or defining various paym
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