HRH Next Services Java Developer Interview Questions and Answers

Q1. Create an interface in python or java
Ans. 
Creating an interface in Python or Java
• In Python, create an interface using the 'abc' module and the 'abstractmethod' decorator

• In Java, create an interface using the 'interface' keyword

• Interfaces define a set of methods that a class must implement
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Q2. Difference between return and yield in python
Ans. 
Return is used to exit a function and yield is used to produce a series of values
• Return statement is used to exit a function and return a value to the caller

• Yield statement is used in generator functions to produce a series of values

• Yield is used to create iterators, while return is used to return a value from a function

• Example: def generator_function(): yield 1 yield 2 yield 3

• Example: def return_function()
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Q1. Describe general scenario in english
Ans. 
A general scenario is a common situation or setting that can be applied to various contexts.
• General scenarios help to provide a framework for understanding different situations

• They can be used in problem-solving, decision-making, and planning

• Examples include a job interview, a classroom setting, or a family gathering
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Q2. Written assessment to check sentence formation and grammar
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Quantitative Aptitude

Q1. To write syntax for a problem using any programming language.
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Q2. Tell me about your projects and Internship experience.
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Q1. Questions were related to Hobbies, extra curricular activities and some questions of analytical ability such as color cube, maths, etc. It was in general.
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Q1. Normally not that though, smooth process
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Q2. Tell me about job responsibilities
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It's was MCQ based test

Q1. Tell me some of the oops concepts
Ans. 
Some OOP concepts include inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding the complex implementation details and showing only the necessary features
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Q1. What is Guid Id please explain
Ans. 
A Guid Id is a globally unique identifier used in software development to uniquely identify objects or entities.
• Guid Ids are 128-bit integers represented as a hexadecimal string.

• They are typically used in databases, APIs, and various software systems to ensure uniqueness.

• Example: 6B29FC40-CA47-1067-B31D-00DD010662DA
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Q1. Discussion about salary
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