Geecon Global Software Trainee Interview Questions and Answers

Q1. What is Dependency Injection?
Ans. 
Dependency Injection is a design pattern in which components are given their dependencies rather than creating them internally.
• Allows for easier testing by providing mock dependencies

• Promotes loose coupling between components

• Improves code reusability and maintainability

• Examples: Constructor injection, Setter injection, Interface injection
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Q2. How to handle exception in java
Ans. 
In Java, exceptions can be handled using try-catch blocks to catch and handle specific exceptions.
• Use try-catch blocks to catch exceptions and handle them gracefully

• Use multiple catch blocks to handle different types of exceptions

• Use finally block to execute code regardless of whether an exception is thrown or not

• Throw custom exceptions using throw keyword
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Q1. In Java8, different between flatmap and map
Ans. 
map transforms each element in a stream, while flatMap transforms each element into multiple elements
• map applies a function to each element in a stream and returns a new stream of the results

• flatMap applies a function that returns a stream for each element in the original stream, then flattens the streams into a single stream

• Example: map - stream.map(x -> x * x), flatMap - stream.flatMap(str -> Arrays.stream(str.split(
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Q2. How to handle the ConcureentModificationException
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ConcurrentModificationException occurs when a collection is modified while iterating over it.
• Use Iterator to iterate over the collection instead of foreach loop.

• If modification is necessary, use Iterator's remove() method instead of collection's remove() method.

• Consider using synchronized collections or ConcurrentHashMap to avoid ConcurrentModificationException.
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Q1. Concepts of node and Js
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Q1. Nothing much it went well as usual they try go ask for negotiable salary
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Q2. What is the reason
Ans. 
The reason for what?
• Need more context to provide a specific reason

• Could be related to a specific action, decision, outcome, etc.

• Can you provide more details or clarify the question?
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Q3. What is the issue
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Q4. What is draw back
Ans. 
A drawback is a disadvantage or limitation of a particular situation or course of action.
• Drawbacks can hinder progress or success in a project or task.

• They can be caused by limitations in resources, technology, or skills.

• Examples include lack of funding, outdated software, or inadequate training.

• Identifying drawbacks early on can help mitigate their impact on a project.
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Q5. What is fast forward
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Fast forward is a feature that allows users to skip ahead in a video or audio file to a specific point.
• Fast forward allows users to quickly move forward in a video or audio file.

• Users can skip scenes or sections they are not interested in by using the fast forward feature.

• Commonly seen in media players, streaming services, and DVRs.

• Example: Pressing the fast forward button on a remote control to skip ahead in a movie.
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Q1. Thread,oops,sql,find character count
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Q1. Basics of your technical skills
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Q1. More Projects related questions
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It was easy- moderate in difficulty level.

Q1. The questions were purely based on python and SQL
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Q2. SQL- What are window functions and were asked to write some basic fetching queries
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Q1. C# basics to advanced. MVC and scenario based questions.
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Q1. Programming and .NET.
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Q1. About the company and expectations.
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