IntelliaTech Solutions Software Engineer and Java Developer Interview Questions, Process, and Tips

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Q1. Core java mostly base on real world oops concepts, java 8 stream api functional interface, lambda expression, spring boot, hibernate, microservices
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Q2. Inheritence oops concept example
Ans. 
Inheritance is a concept in OOP where a class inherits properties and behaviors from another class.
• Child class inherits attributes and methods from a parent class

• Allows for code reusability and promotes the concept of 'is-a' relationship

• Example: Class Animal can be a parent class with attributes like name and methods like eat. Class Dog can inherit from Animal and have additional methods like bark
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Q3. Encapsulation oops concept example
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Encapsulation is the concept of bundling data and methods that operate on the data into a single unit.
• Encapsulation helps in hiding the internal state of an object and restricting access to it.

• It allows for better control over the data by preventing external code from directly modifying it.

• Example: Creating a class 'Employee' with private variables like 'name' and 'salary', and public methods like 'getName()' and 'getS...read more
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Q4. Overriding overloading concepts base question
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Q5. Abstraction real world exampl
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Q1. What is oops?what is concept of oops? What is multithreading?
Ans. 
OOPs is a programming paradigm based on the concept of objects. Multithreading is the ability of a CPU to execute multiple threads concurrently.
• OOPs stands for Object-Oriented Programming.

• It is based on the concept of objects, which have properties and methods.

• Encapsulation, inheritance, and polymorphism are the main concepts of OOPs.

• Multithreading is the ability of a CPU to execute multiple threads concurrently.

• It all...read more
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Q2. What is exception? What is interface?
Ans. 
Exception is an event that occurs during the execution of a program and disrupts the normal flow of instructions.
• Exceptions are used to handle errors and other exceptional events in Java programming.

• They are objects that are thrown at runtime and can be caught and handled by the program.

• Examples of exceptions include NullPointerException, ArrayIndexOutOfBoundsException, and IOException.
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Q3. What is local ,final,static variable? What is exception handling?
Ans. 
Local, final, and static are types of variables in Java. Exception handling is a way to handle errors in code.
• Local variables are declared within a method and have limited scope.

• Final variables cannot be changed once assigned a value.

• Static variables belong to the class and are shared by all instances of the class.

• Exception handling is a way to handle errors in code and prevent program crashes.

• Try-catch blocks are used...read more
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Q4. What is database? What is RDBMS? What is DBMS? Use of select,where clause? What is joins?
Ans. 
A database is a collection of data that is organized in a specific way. DBMS is a software that manages the database. RDBMS is a type of DBMS that uses a relational model.
• DBMS manages the storage, retrieval, and modification of data in a database.

• RDBMS uses a relational model to organize data into tables with rows and columns.

• SELECT statement is used to retrieve data from a database.

• WHERE clause is used to filter data ...read more
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Q1. Why are you looking for a change?
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Q2. Where do you see yourself in 5 years?
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Q3. What are your strengths and weaknesses?
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Q4. What are your salary expectations?
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Q5. What is your family background?
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Q6. Why should we hire you?
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Q7. Tell me about yourself.
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Q1. Discuss 4 case study related to supply chain management.
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Round duration - 140 minutes
Round difficulty - Medium

Test timing was at 2:00 pm , it was conducted in a college and the environment was good for the test. Camera was a primary part of test, so no suspicious activity.

Q1. 
Sum of Two Numbers Represented as Arrays
Given two numbers in the form of two arrays where each element of the array represents a digit, calculate the sum of these two numbers and return this sum as an ar...read more
Ans. 
Given two numbers represented as arrays, calculate their sum and return the result as an array.
• Iterate through the arrays from right to left, adding digits and carrying over if necessary

• Handle cases where one array is longer than the other by considering the remaining digits

• Ensure the final sum array does not have any leading zeros
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Round duration - 20 minutes
Round difficulty - Easy

The round was conducted at around 12 p.m. I was called at the college location and then it was conducted. The interviewer was quite polite and frank.

Round duration - 8 minutes
Round difficulty - Easy

This round was conducted right after finishing and clearing the technical round at the same place and on the same day.

Q1. Solid principles in c#
Ans. 
Solid principles are a set of design principles for writing maintainable and scalable code in C#.
• Single Responsibility Principle (SRP) - a class should have only one reason to change

• Open/Closed Principle (OCP) - a class should be open for extension but closed for modification

• Liskov Substitution Principle (LSP) - derived classes should be substitutable for their base classes

• Interface Segregation Principle (ISP) - client...read more
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