Risun India Electronics Software Engineer Interview Questions and Answers

Q1. What is polymorphism?
Ans. 
Polymorphism is the ability of a function or method to behave differently based on the object it is acting upon.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• There are two types of polymorphism: compile-time (method overloading) and runtime (method overriding).

• Example: Inheritance allows a child class to override a method from its parent class, exhibiting polymorphic b
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Q2. How abstraction is implemented?
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Abstraction is implemented in software engineering by hiding unnecessary details and exposing only relevant information.
• Abstraction is achieved through the use of abstract classes and interfaces in object-oriented programming.

• It allows developers to focus on the essential aspects of a concept without getting bogged down in implementation details.

• For example, in a car simulation program, the Car class may have abstract ...read more
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Q3. What is the difference between abstraction and Interface?
Ans. 
Abstraction is hiding the implementation details while Interface is a contract that defines the methods that a class must implement.
• Abstraction focuses on hiding the internal implementation details of a class, allowing the user to only see the necessary details.

• Interface defines a contract that specifies the methods a class must implement, without providing the implementation details.

• Abstraction can be achieved through...read more
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Q1. What is your motivation when you are working on same project alone for long period?
Ans. 
My motivation when working on a project alone for a long period is the satisfaction of seeing my hard work come to fruition.
• Setting small achievable goals to keep myself motivated

• Taking breaks to avoid burnout and maintain productivity

• Seeking feedback from others to stay motivated and improve my work

• Reminding myself of the end goal and the impact my project will have
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Q1. What is your salary expectation?
Ans. 
My salary expectation is based on my experience, skills, and the market rate for Software Engineers in this region.
• Research the average salary range for Software Engineers in the specific region or industry

• Consider your level of experience, skills, and qualifications when determining your salary expectation

• Be prepared to negotiate based on the company's offer and benefits package
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Q1. How to create custom serializable interface
Ans. 
To create a custom serializable interface, you need to define an interface with the Serializable marker interface and implement the necessary methods.
• Define an interface with the Serializable marker interface

• Implement the necessary methods for serialization and deserialization

• Ensure all fields in the class implementing the interface are serializable
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Q2. Whatis criteria in hibernate
Ans. 
Criteria in Hibernate is used to create and execute dynamic queries.
• Criteria is an interface in Hibernate that allows the creation of dynamic queries without using HQL or SQL.

• Criteria queries are type-safe and can be easily modified at runtime.

• Criteria queries can be used to fetch entities based on certain conditions or restrictions.

• Example: Criteria criteria = session.createCriteria(Employee.class);
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I was on data structures on python , c++, sql and java

Q1. Sql based questions
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Q2. Java based DS and devops
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Q3. C++ data structures
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Q4. Machine learning and Data structures
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Case study of real life

Q1. Course schedule 1 in leetcode
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Q2. Snakes and ladder in leetcode
Ans. 
Implement the game of Snakes and Ladders on LeetCode.
• Use a 1D array to represent the board of the game.

• Use a queue to perform BFS to find the shortest path to reach the end.

• Handle the special cases of snakes and ladders by updating the position accordingly.
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Q1. Innerjoin, index, some logical question.
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C programming, stack, python, computer basics

Implement your own state management in React and integrate it into a React application.