Surekha Technologies Senior Software Engineer Interview Questions and Answers

String manipulation questions easy not that much hard

Q1. String manipulation
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Q2. Reverse a string according to it's input
Ans. 
Reverse a string based on input
• Use a loop to iterate through the characters of the input string

• Append each character to the beginning of a new string to reverse it

• Return the reversed string as the output
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Q1. Java questions and basics of testing
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Q1. What are decorators in Python What is the use of __name == __main__ Django related questions
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Decorators in Python are functions that modify the behavior of other functions or methods. __name__ == __main__ is used to check if a Python script is being run directly or imported as a module.
• Decorators are used to add functionality to existing functions without modifying their code.

• They are defined using the @decorator syntax before the function definition.

• Example: @staticmethod decorator in Python is used to define...read more
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Q1. Joins in SQL, Window functions Coding question Django ORM questions
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Q1. Salary related questions
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Q1. Basic java and rest full API, multithreading and stream
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Q1. Redux flow describe
Ans. 
Redux is a predictable state container for JavaScript apps.
• Redux is a state management library commonly used with React.

• It follows a unidirectional data flow pattern.

• Actions are dispatched to update the state through reducers.

• State changes are handled immutably.

• Selectors can be used to access specific parts of the state.

• Middleware can be used for side effects like async operations.

• Example: Dispatching an action to add
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Q2. Hooks in react describe
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Hooks in React are functions that let you use state and other React features in functional components.
• Hooks were introduced in React 16.8 to allow functional components to have state and lifecycle methods.

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

• useEffect() is a hook that lets you perform side effects in functional components.

• Custom hooks are reusable functions that can contain statefu
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Q1. Basic JavaScript-based questions which we can find by searching JavaScript interview questions on Google. A Quick QnA session via a call where I was not asked to ask any questions to the interviewer
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Q1. Normal discussion on JavaScript and ReactJs. One coding challenge where given an array ["abc", "Silent", "Code"]. Find the matching element when the user input is "bca". It should match "abc".
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Q2. Solved it by looping through each element first. Split the string into an array to get access to each character. Using the .every() method checks whether each character of the string is present inside the ...read more
Ans. 
The question asks about using .every() and .includes() methods to check if each character of a string is present in another string.
• Loop through each element of the string

• Split the string into an array to access each character

• Use .every() method to check if each character is present in the user string

• Use .includes() method to check if the character is present
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Q1. Java8 Features Questions about Stream functions and Lambda Expression
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Q2. Microservices & Springboot (Sample code and Annotations)
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Q3. DB Query to find duplicates in a table, keeping first duplicate in answer.
Ans. 
DB query to find duplicates in a table, keeping first duplicate in answer.
• Use GROUP BY clause to group the records by the column(s) that may have duplicates

• Use HAVING clause to filter out groups with only one record

• Use MIN or MAX function to select the first record in each group

• Example: SELECT MIN(id), name, COUNT(*) FROM table GROUP BY name HAVING COUNT(*) > 1
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Q4. Springboot Profiles, Actuators and Response mapping.
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Q5. Code to map Employee Object from List to Hashmap using Stream API functions.
Ans. 
Code to map Employee Object from List to Hashmap using Stream API functions.
• Create a List of Employee objects

• Use stream() method to convert List to Stream

• Use collect() method to convert Stream to HashMap

• Use Collectors.toMap() method to create HashMap

• Pass key and value mapping functions to toMap() method
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10 min aptitude test

3 coding problem to solve on hackerrank

Multiple choice test

Q1. Technical interview
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Q1. HR discussion and salary negotiations
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