Autoplant Systems India Pvt.Ltd Senior Software Engineer Interview Questions and Answers

Q1. What is Solid principal
Ans. 
SOLID is a set of principles for object-oriented programming to make software more maintainable, flexible, and understandable.
• S - Single Responsibility Principle

• O - Open/Closed Principle

• L - Liskov Substitution Principle

• I - Interface Segregation Principle

• D - Dependency Inversion Principle
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Q2. Sql triggers joins n all
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Q1. Advantage and disadvantage of framework.
Ans. 
Frameworks provide structure and pre-built components for software development, but can also limit flexibility and require learning curve.
• Advantage: Provides structure and pre-built components for faster development

• Advantage: Can improve code quality and maintainability

• Disadvantage: Can limit flexibility and customization

• Disadvantage: Requires learning curve and potential dependency issues

• Example: ReactJS provides a fr...read more
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Q1. What is Oops? Advantage and disadvantage
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Oops stands for Object-Oriented Programming. It is a programming paradigm that uses objects to represent real-world entities.
• Advantages: code reusability, modularity, encapsulation, inheritance, polymorphism

• Disadvantages: complexity, steep learning curve, performance overhead

• Example: creating a class 'Car' with properties like 'make', 'model', and 'year', and methods like 'start_engine' and 'stop_engine'
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Q1. They asked questions related your project and technical questions
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You have to do programming test. This is based on logical question.

Q1. LRU Implementation
Ans. 
LRU (Least Recently Used) is a cache eviction policy where the least recently accessed items are removed first.
• LRU cache stores key-value pairs with a maximum capacity.

• When a new key-value pair is added, if the cache is full, the least recently used item is removed.

• When a key is accessed, it is moved to the front of the cache to indicate it was recently used.
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Q2. Sell and buy stock
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Reverse Linklist with keeping special character intact, Singleton class to write.

Q1. How are unions used
Ans. 
Unions are used to combine multiple variables of different data types into a single variable.
• Unions allow for efficient use of memory by sharing the same memory location for different variables.

• They are commonly used in low-level programming for hardware access and data serialization.

• An example of a union is a struct that contains a float and an integer, where changing the value of one will affect the other.
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Q2. Different types of joins
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Different types of joins are Inner Join, Left Join, Right Join, and Full Outer Join.
• Inner Join returns only the matching rows from both tables.

• Left Join returns all the rows from the left table and matching rows from the right table.

• Right Join returns all the rows from the right table and matching rows from the left table.

• Full Outer Join returns all the rows from both tables, with NULL values in the columns where there
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Q1. Write a Program Nth term in a infinite series example: 2,4,8,2,4,8……..n…….infinite
Ans. 
Program to find the Nth term in an infinite series
• The series has a repeating pattern

• Use modulo operator to find the index of the repeating pattern

• Calculate the value of Nth term based on the pattern
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Q2. Write a Program identify Max length of a substring from a given string and also the substring should be palindrome
Ans. 
Program to find the longest palindrome substring in a given string.
• Iterate through the string and check for palindromes of different lengths

• Store the longest palindrome found

• Return the length and substring
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Q3. What is your comfort level on HTML, CSS and JavaScript
Ans. 
I am highly proficient in HTML, CSS, and JavaScript.
• Extensive experience in building responsive web applications using HTML, CSS, and JavaScript

• Strong understanding of front-end frameworks like React, Angular, or Vue.js

• Familiarity with CSS preprocessors like SASS or LESS

• Knowledge of modern JavaScript ES6+ features and best practices

• Experience in optimizing web performance and cross-browser compatibility
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Q4. What are reasons for your transitions in Career
Ans. 
Transitions were driven by desire for growth, new challenges, and better alignment with personal values.
• Desire for professional growth and development

• Seeking new challenges and opportunities

• Alignment with personal values and mission

• Exploring different industries and technologies

• Relocation for personal reasons
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Q5. Oracle EBS 12.1 and 12.2 Technical Architecture Differences
Ans. 
Differences between Oracle EBS 12.1 and 12.2 Technical Architecture
• 12.2 has a web-based interface while 12.1 has a client-server interface

• 12.2 has a multi-node architecture while 12.1 has a single-node architecture

• 12.2 has a more modular architecture with fewer dependencies

• 12.2 has a more streamlined upgrade process compared to 12.1
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Q6. What is your current role and how do you handle your daily tasks
Ans. 
I am currently working as a Senior Software Engineer and I handle my daily tasks by prioritizing them based on their importance and urgency.
• I start my day by checking my emails and responding to any urgent requests

• I then review my to-do list and prioritize my tasks for the day

• I break down complex tasks into smaller, more manageable ones

• I collaborate with my team members to ensure that we are all on the same page

• I use p...read more
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Q7. Tell me in detail step by step process for registering XML Publisher Report
Ans. 
The process for registering XML Publisher Report
• Create a data model for the report

• Create a template for the report using RTF or XSL-FO

• Upload the template to the server

• Create a report definition using the data model and template

• Register the report definition with the XML Publisher server
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Q8. Java Exceptions hierarchy(IOException then Exception Block , what error we get here)
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Q9. Write a Program to find a second max in the give list? and Time Complexity
Ans. 
Program to find second max in a list and its time complexity
• Sort the list in descending order and return the second element

• Traverse the list and keep track of the maximum and second maximum elements

• Time complexity: O(n)
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Easy leetcode questions . Total 2 to answer.

Q1. Java , angular and project
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Q1. Salary discussion, notice period
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