Jupiter Hospital Software Developer Interview Questions and Answers for Experienced

Q1. React hooks, Explain using code
Ans. 
React hooks are functions that let you use state and other React features without writing a class.
• Hooks are functions that let you use state and other React features in functional components

• useState() is a hook that allows you to add state to functional components

• useEffect() is a hook that allows you to perform side effects in functional components

• useContext() is a hook that allows you to use the context API in functio
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Q2. Factory Patterns?
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Q3. Liskov Substitution Principle
Ans. 
Liskov Substitution Principle states that objects of a superclass should be replaceable with objects of its subclasses without affecting the program's correctness.
• Subtypes must be substitutable for their base types.

• Derived classes must be able to replace their base classes without affecting the program's behavior.

• Violating this principle can lead to unexpected behavior and errors in the code.

• Example: If a program expec...read more
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Q4. Oops Concept and give examples
Ans. 
Oops concept is a programming paradigm that focuses on objects and classes.
• Oops stands for Object-Oriented Programming

• Key concepts include inheritance, encapsulation, polymorphism, and abstraction

• Examples: Class Car with properties like make, model, and methods like start(), stop()

• Example: Inheritance - Class SUV extends Car and adds property numSeats
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Q5. JQuery - Ajax mechanisms
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Q6. Docker and Kubernetes - Azure concepts
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Two Easy questions to be solved

Q1. Some Technical based questions
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Q2. It was amazing . Interviewer asked me to code for heap sort and asked me to explain.
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Q3. Write a code for heap sort algorithm and explain it?
Ans. 
Heap sort is a comparison-based sorting algorithm that uses a binary heap data structure.
• Heap sort works by building a binary heap from the array and then repeatedly extracting the maximum element and placing it at the end of the array.

• The heap is maintained as a complete binary tree, where each parent node is greater than or equal to its children.

• The time complexity of heap sort is O(n log n) and it is an in-place sor...read more
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They asked easy to medium DSA . It includes arrays, strings, recursion.

Q1. Binary search Merg sorting algorithm Minimum n maximum number in an array list Core java question Oops tricky code snippets Architecture questions about restful and Microservices
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Q2. Deep copy and shallow copy Interviewer test your problem solving attitude and response not the perfect output
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Q3. Array in descending order code
Ans. 
Sort an array of strings in descending order
• Use the sort() method with a custom compare function to sort the array in descending order

• Example: ['apple', 'banana', 'cherry'].sort((a, b) => b.localeCompare(a)) will result in ['cherry', 'banana', 'apple']
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Q4. Comparator and comparable interface
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Q1. What is the iterator, generator in python. Write an example of it. What is .pyc file, when is it generate, generate and show it.
Ans. 
Iterator and generator are used in Python to iterate over a sequence of elements. .pyc files are compiled Python files.
• Iterator in Python is an object that enables a programmer to traverse a container, like a list.

• Generator in Python is a function that returns an iterator. It generates values using the yield keyword.

• Example of iterator: for num in range(5): print(num)

• Example of generator: def square_numbers(n): for i i...read more
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Q2. Coding Questions: 1) Reversing a number eg:1234 to 4321 2) Perform sorting in list using any sort algorithm 3) list1, list2 - both are mapped to each other, based on the traget value in list1, return th...read more
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Q3. Technical questions : OS module, .pyc file, git commands,
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Q4. What is bug life cycle? which project management methodolgy are you following in your current project.
Ans. 
Bug life cycle is the process of identifying, reporting, fixing, retesting, and closing bugs in a software project.
• Bug is identified by a tester during testing phase

• Bug is reported to the development team

• Development team fixes the bug

• Tester retests the bug to ensure it is fixed

• Bug is closed once confirmed fixed
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Q5. Questions on OOPS . What is polymorphism, write an example for that . Why do we use OOP's
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Q1. Core Java and Spring Boot Questions.
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