Integrative Systems Senior Associate Interview Questions and Answers

Given a list of integer find the longest increase sequence

Q1. Given a list of integer find the first non repeating integer using stream API of Java 8.
Ans. 
Find the first non-repeating integer in a list using Java 8 stream API.
• Use Java 8 stream API to group integers by count

• Filter out integers with count greater than 1

• Return the first non-repeating integer
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Q2. Questions on core java like how internationally string works, hashmap etc And questions on database like what is indexing How to optimize SQL queries etc
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Q1. Given a Map of fruits with there price as a key value pair respectively, find the fruit whose price is maximum using Java 8 Stream API.
Ans. 
Using Java 8 Stream API to find the fruit with maximum price in a Map of fruits.
• Use entrySet() method to get a stream of key-value pairs from the Map.

• Use max() method with Comparator.comparing() to find the entry with maximum price.

• Extract the key (fruit) from the entry with maximum price.
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Q2. Write a program to check whether the parenthesis are properly balanced or not, means for every opening brace these should be a closing brace present.
Ans. 
Program to check if parenthesis are properly balanced
• Use a stack data structure to keep track of opening parenthesis

• Iterate through the input string and push opening parenthesis onto the stack

• When a closing parenthesis is encountered, pop from the stack and check if it matches the corresponding opening parenthesis

• If stack is empty at the end and all parenthesis are matched, then the input has properly balanced parenthe
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Q3. Questions on core Java, Spring Boot, JPA, and Microservices you should have strong foundation in these topics questions asked like 1) what is API gateway 2) how 2 services communicate with eachother 3) ...read more
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Assusual apti questions from every topics

1. 1 coding Question we can use java, python etc to solve and
2. another 1 sql question

One question based on any one data structure (in my case I solved stack &queue combinely)

Q1. They ask about Ur background qualifications and verify
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Q2. And then explain the process of company and ask everything is ok for us like bond etc
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Q3. Then sheduled interview on the next day
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Q1. She(hr) introduced herself
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Q2. Then she asked me to introduce myself
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Q3. What are the programming languages u know ( I said I'm strong in java)
Ans. 
I am strong in Java programming language.
• Proficient in Java programming language

• Experience in developing applications using Java

• Knowledge of Java frameworks like Spring and Hibernate
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Q4. Rate Urself in it out of 5
Ans. 
I rate myself 4 out of 5 in IT skills.
• Proficient in programming languages such as Java, Python, and C++

• Experienced in software development and debugging

• Familiar with database management systems like MySQL and MongoDB
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Q5. She asked me to explain lambda expressions in java
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Q6. Explain detaily about Four pillars of oops
Ans. 
The four pillars of OOP are encapsulation, inheritance, polymorphism, and abstraction.
• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Inheritance: Allows a class to inherit properties and behavior from another class.

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

• Abstraction: Hides the complex implementation details and only shows the necessary features.
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Q7. Share Ur screen and get this output (pattern program)
Ans. 
Print a specific pattern using loops
• Use nested loops to print the desired pattern

• Increment the number of characters printed in each row

• Adjust the spacing to create the desired pattern
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Q8. Shorterm and long-term goals
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Q9. If your assigned to a task how can you complete it
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Q10. Exception handling concept (she specifically asked about throw, throws, finally keyword)
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Q11. Explain about Static keyword
Ans. 
Static keyword is used in programming languages to declare variables, functions, or classes that are shared among all instances of a class or are only accessible within a specific scope.
• Static variables retain their values between function calls

• Static functions can only be called within the same file

• Static classes cannot be instantiated and are used for grouping related methods and properties
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Q1. A Lot of OOPS and Virtual concept
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Q2. Basic SQL till joins
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Q3. Java script medium
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Q4. C# oops output based
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Basic aptitude question

Based on puzzle comprehension

25 MCQ , 2 short essays

Q1. Walk me through your profile
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Q1. Why should we hire you ?
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