OodlesTechnologies Intern Interview Questions and Answers for Freshers

Reasoning and Mental ability questions

DSA question . Level was a little hard like dynamic programming , Matrix questions etc

Q1. It was normal talk
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Q1. Basics logics of code.
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Q1. Just be confident and calmly give ans with positive outcomes.
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Code and aptitude round it was.

Q1. Basic job related and programming questions
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Q1. In depth problem statements
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Q1. Problem statements and cv diving.
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Q1. Basic behavioral ques
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Code review to find bugs

Q1. State the features of interface Spring boot annotations Microservice communication table index
Ans. 
Interface features include abstraction, multiple inheritance, and contract enforcement.
• Abstraction: Interfaces allow for the definition of methods without implementation, providing a blueprint for classes to follow.

• Multiple Inheritance: Java interfaces support multiple inheritance, allowing a class to implement multiple interfaces.

• Contract Enforcement: Interfaces define a contract that implementing classes must adhere
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Q1. 1 question on merge sort, 1 question on SQL queries, oops concepts in depth with real-life examples, core java concepts in depth, collection framework.
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Q2. Merge 2 sorted arrays,
Ans. 
Merge 2 sorted arrays into a single sorted array.
• Create a new array with the combined length of the two input arrays

• Use two pointers to iterate through the two arrays and compare elements to merge them into the new array

• Handle cases where one array is longer than the other
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Q3. Find the top salary of a department
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Q4. 4 pillars of oops
Ans. 
Encapsulation, Inheritance, Polymorphism, Abstraction are the 4 pillars of OOPs
• Encapsulation: Bundling data and methods that operate on the data into a single unit. Example: Class in Java

• Inheritance: Ability of a class to inherit properties and behavior from another class. Example: Parent and Child classes

• Polymorphism: Ability to present the same interface for different data types. Example: Method overloading and overr...read more
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Basic apti and logic and maths and python

Face to face basics and do all the projects in depth

There was pattern question in any programming language and you have make the pattern dynamic.

Q1. What is Java and features What is string and types What is dependency injection
Ans. 
Java is a high-level programming language. String is a sequence of characters. Dependency Injection is a design pattern.
• Java is an object-oriented language with features like platform independence, automatic memory management, and multithreading.

• String is a class in Java used to represent a sequence of characters. It is immutable and can be concatenated using the '+' operator.

• Dependency Injection is a design pattern us...read more
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Q1. Why do you to change job?
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