100+ SRM Group of Institutions Chennai Interview Questions and Answers

Maximum distance that can be traveled using 3 wheels, each with a 5km limit and requiring 2 wheels to move forward.

• Using all 3 wheels, we can move forward a total of 10kms (5kms using 2 wheels at a time)

• After using the first 2 wheels to travel 5kms, we can switch to the remaining wheel and travel another 5kms

• Alternatively, we can use 2 wheels to travel 5kms, then switch to the remaining wheel and use another 2 wheels to travel another 5kms, for a total of 10kms

I am comfortable with multiple coding languages including Java, Python, and C++.

• Proficient in Java, Python, and C++

• Experience with web development languages such as HTML, CSS, and JavaScript

• Familiarity with scripting languages like Bash and PowerShell

• Comfortable with SQL and NoSQL databases

• Knowledge of machine learning libraries like TensorFlow and Keras

Sorting algorithms are used to arrange data in a specific order. There are various types of sorting algorithms.

• Types of sorting algorithms include: bubble sort, selection sort, insertion sort, merge sort, quick sort, heap sort, counting sort, radix sort, and bucket sort.

• Bubble sort compares adjacent elements and swaps them if they are in the wrong order.

• Selection sort selects the smallest element and swaps it with the first element, then selects the second smallest and swaps ...read more

To create a calculator program, use a GUI framework and implement basic arithmetic operations.

• Choose a programming language and a GUI framework such as JavaFX or Tkinter.

• Implement the basic arithmetic operations such as addition, subtraction, multiplication, and division.

• Add functionality for decimal points, clear button, and negative numbers.

• Test the program thoroughly to ensure accuracy and usability.

Interview questions for Software Engineer position

• Array is a collection of elements of the same data type, while LinkedList is a collection of nodes that contain data and a reference to the next node

• Binary search is a search algorithm that divides the search interval in half at every step, reducing the search space by half

• Code complexity refers to the level of difficulty in understanding and maintaining a piece of code

• Deadlock is a situation where two or more processes are un...read more

To eliminate repeated array from a given string

• Convert the string to an array using split() method

• Use Set object to remove duplicates from the array

• Convert the array back to string using join() method

To swap two numbers without using a third variable, use arithmetic operations like addition and subtraction.

• Add the two numbers and store the result in one of the variables.

• Subtract the second number from the sum and store the result in the second variable.

• Finally, subtract the first number (which is now stored in the second variable) from the sum and store the result in the first variable.

Program to print a pattern of stars in a pyramid shape

• Use nested loops to print the pattern

• The outer loop controls the number of rows

• The inner loop controls the number of stars in each row

Hotfix changes in a production environment are managed through a controlled process to minimize risks and ensure smooth deployment.

• Hotfix changes should be thoroughly tested in a staging environment before being deployed to production.

• A rollback plan should be in place in case the hotfix introduces new issues.

• Communication with stakeholders and users about the hotfix deployment is crucial to manage expectations and minimize disruptions.

• Version control systems should be used t...read more

Interview questions on software engineering concepts and projects

• Discussed my background and experience

• Explained my projects and their significance

• Defined sorting and provided insertion sort code

• Explained searching and provided binary and linear search code

• Discussed OOP concepts such as polymorphism and encapsulation

Order by sorts the result set while group by groups the result set based on a column

• Order by is used to sort the result set in ascending or descending order

• Group by is used to group the result set based on a column

• Order by can be used with multiple columns while group by can only be used with one column

• Order by is used after the select statement while group by is used before the select statement

I am comfortable in programming languages such as Java, Python, and JavaScript.

• Java

• Python

• JavaScript

I worked on a project that involved sentiment analysis of customer reviews using Naive Bayes algorithm.

• The project involved collecting customer reviews from various sources.

• Preprocessing the data by removing stop words, stemming, and tokenizing.

• Used Naive Bayes algorithm for sentiment analysis.

• The algorithm was chosen because of its simplicity and effectiveness in text classification tasks.

• The accuracy of the model was evaluated using cross-validation techniques.

Spring Boot can be used to expose Rest APIs easily.

• Create a Spring Boot project with necessary dependencies.

• Define the API endpoints using @RestController and @RequestMapping annotations.

• Implement the API logic in methods annotated with @GetMapping, @PostMapping, etc.

• Use @RequestBody and @PathVariable annotations to handle request data.

• Configure the API using application.properties or application.yml file.

• Test the API using tools like Postman or Swagger UI.

Methods to scale up a Kubernetes cluster include horizontal scaling, vertical scaling, and cluster auto-scaling.

• Horizontal scaling: Adding more nodes to the cluster to distribute the workload.

• Vertical scaling: Increasing the resources (CPU, memory) of existing nodes in the cluster.

• Cluster auto-scaling: Automatically adjusting the number of nodes based on resource usage.

• Using tools like Horizontal Pod Autoscaler (HPA) to automatically scale the number of pods in a deployment b...read more

Code for addition and multiplication of matrix in C programming.

• Use nested loops to iterate through each element of the matrix

• For addition, add corresponding elements of both matrices and store in a new matrix

• For multiplication, use dot product of rows and columns to calculate each element of the new matrix

I am comfortable with Java programming language.

• Proficient in object-oriented programming concepts

• Experience in developing web applications using Spring framework

• Familiarity with Java libraries and tools such as Hibernate and Maven

To open command prompt in Windows, press Win+R and type 'cmd' or search for 'Command Prompt' in Start menu.

• Press Win+R and type 'cmd'

• Search for 'Command Prompt' in Start menu

• Right-click on Start menu and select 'Command Prompt'

• Use Windows PowerShell instead of Command Prompt

Basic concepts of a programming language for fresher and example coding question

• Basic concepts include variables, data types, loops, conditionals, functions, and arrays

• Example coding question: Write a function to find the sum of all elements in an array

• Understanding of syntax, debugging, and problem-solving skills are also important for a fresher

Inheritance is a concept in programming where a class inherits properties and behaviors from another class.

• Allows for code reusability by creating a new class based on an existing class

• Child class can access all public and protected members of the parent class

• Helps in creating a hierarchy of classes with shared attributes and methods

Answering a question about willingness to allocate and providing a program to pass data through a function.

• Yes, I am willing to allocate.

• To pass data through a function, we can define the function with parameters that will receive the data and then call the function with the data as arguments.

• For example, if we have a function that adds two numbers, we can pass the numbers as arguments when calling the function.

• function addNumbers(num1, num2) { return num1 + num2; }

• var result...read more

To copy data of all GDG versions into a single PS file using JCL.

• Use IDCAMS utility to define a temporary GDG base.

• Use SORT utility to merge all the GDG versions into a single file.

• Use IEBGENER utility to copy the merged file to a PS file.

• Delete the temporary GDG base using IDCAMS utility.

A linked list is a linear data structure where each element is a separate object with a pointer to the next element.

• Consists of nodes that contain data and a pointer to the next node

• Can be singly or doubly linked

• Used for dynamic memory allocation, implementing stacks and queues, and more

Fibonacci series is a sequence of numbers where each number is the sum of the two preceding ones.

• The first two numbers of the series are always 0 and 1

• The next number is the sum of the previous two numbers

• The series goes on infinitely: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, ...

• Pseudo code: 1. Initialize variables a=0, b=1, c=0 2. Print a and b 3. Repeat steps 4-6 until desired number of terms 4. c=a+b 5. Print c 6. a=b, b=c

Yes, I can remove all the pcs from the lab and keep them in another lab right now.

• Ensure all the necessary equipment and tools are available for the move

• Coordinate with the lab staff to ensure a smooth transition

• Label and document each PC for easy identification and setup in the new lab

• Ensure proper packaging and handling to prevent any damage during the move

Program to print unique elements in an array in Java

• Create a HashSet to store unique elements

• Iterate through the array and add each element to the HashSet

• Print the HashSet to get the unique elements

Code to reverse a string and search an element.

• To reverse a string, use a loop to iterate through the string and append each character to a new string in reverse order.

• To search for an element in a string, use the indexOf() method or a loop to iterate through the string and check each character.

• Example: function reverseAndSearch(str, elem) { let reversed = ''; for(let i = str.length - 1; i >= 0; i--) { reversed += str[i]; } return reversed.indexOf(elem) !== -1; }

Use the split() and join() methods to remove extra spaces in Python.

• Split the string using split() method to create a list of words.

• Use join() method to join the words back together with a single space between them.

• Use strip() method to remove any leading or trailing spaces.

Abstraction is the process of hiding complex implementation details and exposing only the necessary information.

• Abstraction helps in reducing complexity and increasing efficiency.

• It allows us to focus on the essential features of an object or system.

• For example, a car can be abstracted as a vehicle with certain properties like speed, fuel efficiency, and seating capacity.

• Abstraction can be achieved through interfaces, abstract classes, and encapsulation.

Software testing methodologies are techniques used to test software for quality and functionality.

• There are several types of testing methodologies such as black box testing, white box testing, and gray box testing.

• Black box testing focuses on testing the functionality of the software without knowledge of its internal workings.

• White box testing involves testing the internal workings of the software, including code and algorithms.

• Gray box testing is a combination of black and w...read more

Device Manager can be opened in Windows using multiple methods.

• Press Windows key + X and select Device Manager

• Open Run dialog box (Windows key + R) and type devmgmt.msc

• Search for Device Manager in Windows search bar

• Right-click on This PC/My Computer and select Manage, then select Device Manager from the left pane

HashMap can store and fetch elements in various ways using Java 7 and 8.

• In Java 7, we can use put() and get() methods to store and fetch elements respectively.

• In Java 8, we can use forEach() and compute() methods to store and fetch elements respectively.

• We can also use keySet(), values(), and entrySet() methods to retrieve keys, values, and key-value pairs respectively.

• Java 8 also introduced the stream() method for HashMap, which allows for more efficient processing of large ...read more

Code to count handshakes between N people and a class using OOPs concept.

• For counting handshakes, use a loop to iterate through each person and add up the handshakes with the remaining people.

• For the class, define attributes and methods based on the requirements and use encapsulation, inheritance, and polymorphism concepts.

• Example: class Person with attributes name and age, and method greet(). Class Employee inherits from Person and has additional attribute salary and method ...read more

A program to replace a character with another character in Java.

• Create a string variable with the original text

• Use the replace() method to replace the character with another character

• Print the new string with the replaced character

OOPs stands for Object-Oriented Programming. Static is a keyword used to create a class-level variable or method. Final is a keyword used to declare a constant value.

• OOPs is a programming paradigm that focuses on objects and their interactions.

• Static variables or methods belong to the class and not to the instance of the class.

• Final variables cannot be changed once they are assigned a value.

• Static and final can be used together to create a class-level constant.

• Example: public...read more

OOPs (Object-Oriented Programming) concepts include inheritance, polymorphism, encapsulation, and abstraction.

• Inheritance: Allows a class to inherit properties and behavior from another class. Example: Parent class 'Animal' and child class 'Dog'.

• Polymorphism: Ability to present the same interface for different data types. Example: Method 'drawShape' can be used for different shapes.

• Encapsulation: Bundling data and methods that operate on the data into a single unit. Example: ...read more

Access specifiers in C language control the visibility and accessibility of variables and functions.

• C language has three access specifiers: public, private, and protected.

• Public variables and functions can be accessed from anywhere in the program.

• Private variables and functions can only be accessed within the same file.

• Protected variables and functions can be accessed within the same file and any derived classes.

• Access specifiers are used in struct and class definitions to co...read more

Comparable and comparator concepts and sorting by use of comparator functional Interface.

• Comparable interface is used to define natural ordering of objects

• Comparator interface is used to define custom ordering of objects

• Sorting can be done using Comparator functional interface

• Example: Sorting a list of employees by their salary using Comparator

List is an ordered collection of elements while set is an unordered collection of unique elements.

• Lists allow duplicate elements while sets do not.

• Lists are accessed by index while sets are accessed by value.

• Lists are represented by square brackets [] while sets are represented by curly braces {}.

• Example: [1, 2, 3] is a list while {1, 2, 3} is a set.

OOP is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.

• Encapsulation: Bundling data and methods that operate on the data into a single unit (object).

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

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

• Abstraction: Hiding the complex implementation details and showing only the nece...read more

Method overloading is having multiple methods in the same class with the same name but different parameters, while method overriding is having a method in a subclass with the same name and parameters as a method in its superclass.

• Method overloading is resolved at compile time based on the method signature and parameters.

• Method overriding is resolved at runtime based on the actual object type.

• Example of method overloading: public void print(int num) and public void print(Strin...read more

Selectors in CSS are patterns used to select the elements you want to style on a web page.

• Selectors can target elements based on their tag name, class, ID, attributes, and more.

• Examples include: element selector (p), class selector (.example), ID selector (#example), attribute selector ([type='text']), and pseudo-class selector (:hover).

Isolation levels in Db2 determine how transactions interact with each other.

• Isolation levels include Read Uncommitted, Read Committed, Repeatable Read, and Serializable.

• Higher isolation levels provide more consistency but can also lead to more contention and slower performance.

• Isolation levels can be set at the transaction level or for individual queries.

• For example, a transaction with Repeatable Read isolation level will prevent other transactions from modifying the same dat...read more

To find the unique element in an array

• Iterate through the array and use a hash table to keep track of the frequency of each element

• Return the element with frequency 1

• Alternatively, use XOR operation to cancel out duplicate elements and return the remaining element

Finding address of an element in an array given the address of 0th index.

• Calculate the offset of the desired element from the 0th index address and add it to the 0th index address.

• Address of ith element = address of 0th element + i * size of each element.

• Example: Address of 3rd element in an array of strings = address of 0th element + 3 * size of string.

Windows functions are not used in WHERE clause to avoid performance issues.

• Windows functions are used to perform complex calculations on data.

• Using them in WHERE clause can slow down the query execution.

• Instead, use simple conditions in WHERE clause and perform calculations in SELECT clause.

• For example, instead of using AVG() function in WHERE clause, use HAVING clause.

• Also, consider using indexes to improve query performance.

Code snippet output prediction for software engineer interview

• Understand the code logic and data flow

• Consider the input values and their impact on output

• Check for any loops or conditions that may affect the output

Java is a popular programming language known for its platform independence and object-oriented approach.

• Java is a high-level, class-based, object-oriented programming language.

• It is designed to have as few implementation dependencies as possible, making it platform-independent.

• Java applications are typically compiled to bytecode that can run on any Java virtual machine (JVM).

• Java is widely used for developing desktop, web, and mobile applications.

• Popular frameworks and librar...read more

The fastest sorting algorithm is QuickSort.

• QuickSort has an average time complexity of O(n log n).

• It is a divide and conquer algorithm that recursively partitions the array.

• It is widely used in practice due to its efficiency.

• Other fast sorting algorithms include MergeSort and HeapSort.

Inheritance is a mechanism in which a new class inherits properties and behaviors from an existing class. Encapsulation is the concept of bundling data and methods that operate on the data into a single unit.

• Inheritance allows a subclass to inherit attributes and methods from a superclass. For example, a class Animal can be a superclass with attributes like name and age, and methods like eat() and sleep(). A subclass Dog can inherit these attributes and methods.

• Encapsulation ...read more

Create a function to print the addition of two numbers

• Define a function that takes two parameters representing the numbers to be added

• Inside the function, add the two numbers together

• Print the result of the addition

To create an end to end pipeline from Jenkins, you need to set up stages for building, testing, and deploying your code.

• Set up Jenkins job with necessary plugins for version control, build tools, and deployment

• Define stages in Jenkinsfile for building, testing, and deploying code

• Configure Jenkins job to trigger automatically on code changes

• Integrate with version control system for code checkout and triggering builds

• Use Jenkins pipeline syntax to define stages and steps for ea...read more

Compute Services in Azure are cloud-based services that provide virtual machines, containers, and serverless computing capabilities.

• Azure Virtual Machines: Allows users to create and manage virtual machines in the cloud.

• Azure Container Instances: Offers a solution for running containers without managing servers.

• Azure Functions: Enables serverless computing by running code in response to events.

• Azure Batch: Provides job scheduling and compute management for large-scale paralle...read more

PEGA is a business process management tool used for building enterprise applications.

• PEGA is a platform for creating and managing business processes and customer interactions.

• It offers tools for designing, building, and deploying applications without the need for traditional coding.

• I learned PEGA because of its popularity in the industry and its ability to streamline business processes.

• Having PEGA skills can open up job opportunities in various industries such as finance, hea...read more

Types of joins include inner join, outer join, left join, and right join. Inner join returns rows when there is a match in both tables.

• Inner join combines rows from two tables based on a related column between them

• Only the rows with matching values in both tables are included in the result set

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column

My areas of strength include problem-solving, teamwork, and adaptability. My weakness is public speaking.

• Strengths: problem-solving (e.g. developing efficient algorithms), teamwork (e.g. collaborating with colleagues on a project), adaptability (e.g. quickly learning new programming languages)

• Weakness: public speaking (e.g. presenting technical information to a large audience)

LTIMindtree is a global technology consulting and services company specializing in digital transformation and IT services.

• LTIMindtree was formed through the merger of LTI (Larsen & Toubro Infotech) and Mindtree in 2019.

• It offers services in areas such as cloud computing, data analytics, cybersecurity, and artificial intelligence.

• LTIMindtree serves clients in various industries including banking, healthcare, retail, and manufacturing.

• The company has a strong focus on innovatio...read more

Swapping two numbers without using a third number in Java

• Create a temporary variable and use bitwise XOR operation to swap the numbers

• Example: int a = 5, b = 10; a = a ^ b; b = a ^ b; a = a ^ b; // Now a = 10, b = 5

Code to print prime numbers upto 100

• Loop through numbers 2 to 100

• Check if number is prime by dividing it by numbers from 2 to itself-1

• If number is prime, print it

React lifecycle refers to the sequence of methods that are invoked during the lifespan of a React component.

• React components go through three main phases: Mounting, Updating, and Unmounting.

• During the Mounting phase, constructor, render, and componentDidMount methods are called.

• During the Updating phase, componentDidUpdate method is called when the component's props or state change.

• During the Unmounting phase, componentWillUnmount method is called before the component is remo...read more

Algorithm for matrix multiplication

• Create a result matrix with dimensions of the two input matrices

• Iterate through each row and column of the result matrix

• For each element in the result matrix, multiply corresponding row in first matrix with corresponding column in second matrix

• Add the products obtained in the previous step to get the final value for the element

I am a software engineer with knowledge in C programming and prime number algorithms.

• C is a programming language used for system programming and embedded systems.

• A prime number is a number that is only divisible by 1 and itself.

• To check if a number is prime, we can use a loop to divide it by all numbers less than itself.

• N++ means incrementing the value of N by 1, while n+1 means adding 1 to the value of n.

• The order of operations in N++,n+1 is to first increment N by 1, then a...read more

Bubble sort is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements and swaps them if they are in the wrong order.

• Bubble sort is a comparison-based algorithm

• It works by comparing each pair of adjacent elements and swapping them if they are in the wrong order

• The algorithm repeats this process until no more swaps are needed

• It has a worst-case and average complexity of O(n^2)

• Example: [5, 3, 8, 4, 2] -> [3, 5, 4, 2, 8] -> [3, 4, 2, 5, 8] -...read more

Program to identify odd and even numbers.

• Use modulo operator to check if a number is even or odd.

• If a number is divisible by 2, it is even.

• If a number is not divisible by 2, it is odd.

• Print the result accordingly.

Java is a programming language used to develop applications. Polymerization is not related to Java.

• Java is an object-oriented language

• It is platform-independent

• Polymerization is a chemical process of combining monomers to form a polymer

• Polymerization is not related to Java

I have a strong understanding of DBMS tools and their functionalities.

• Proficient in SQL and relational database management systems

• Experience in designing and optimizing database schemas

• Skilled in writing complex queries and stored procedures

• Familiarity with database administration tasks such as backup and recovery

• Knowledge of indexing and query optimization techniques

• Experience with popular DBMS tools like MySQL, Oracle, and PostgreSQL

Java 8 introduced several new features including lambda expressions, streams, functional interfaces, and default methods.

• Lambda expressions allow you to write code in a more concise and readable way.

• Streams provide a way to work with sequences of elements and perform operations on them.

• Functional interfaces are interfaces with a single abstract method, which can be implemented using lambda expressions.

• Default methods allow interfaces to have method implementations, reducing t...read more

OOPs concepts are the principles of Object-Oriented Programming that focus on encapsulation, inheritance, polymorphism, and abstraction.

• Encapsulation: bundling of data and methods that manipulate the data within a single unit

• Inheritance: a mechanism that allows a new class to be based on an existing class

• Polymorphism: the ability of an object to take on many forms

• Abstraction: the process of hiding complex implementation details and showing only functionality to the user

• Exampl...read more

Logic for Fibonacci series using recursion

• Define a function that takes an integer as input

• If the input is 0 or 1, return the input

• Else, return the sum of the previous two numbers in the series

• Call the function recursively with the previous two numbers as input

SDLC stands for Software Development Life Cycle, which is a process used by software development teams to design, develop, and test high-quality software.

• SDLC is a systematic process for building software applications.

• It consists of several phases such as planning, analysis, design, implementation, testing, and maintenance.

• Each phase has its own set of activities and deliverables.

• Examples of SDLC models include Waterfall, Agile, and DevOps.

• SDLC helps ensure that software proj...read more

Find the greatest element in an array without using any inbuilt functions.

• Iterate through the array and compare each element with a variable storing the current greatest element.

• Update the variable if a greater element is found.

• Return the variable containing the greatest element at the end.

Normalization in SQL involves organizing data in a database to reduce redundancy and improve data integrity. Functions in Java are reusable blocks of code that perform specific tasks.

• Normalization in SQL involves breaking down data into smaller, more manageable tables to reduce redundancy and improve data integrity

• Functions in Java are reusable blocks of code that perform specific tasks and can be called multiple times in a program

• Examples of normalization in SQL include brea...read more

Tuple is immutable in Python.

• Tuples are similar to lists but are immutable.

• Once a tuple is created, you cannot change its values.

• You can convert a tuple to a list and modify it, but you cannot convert a list to a tuple.

• Tuples are faster than lists and can be used as keys in dictionaries.

Abstract class is a class that cannot be instantiated and interface is a contract that defines methods.

• Abstract class can have both abstract and non-abstract methods while interface can only have abstract methods.

• A class can implement multiple interfaces but can only inherit from one abstract class.

• Abstract class can have constructors while interface cannot.

• Example of abstract class: Animal (abstract method: makeSound())

• Example of interface: Runnable (method: run())

To find the max and min number in an array, iterate through the array and compare each element with the current max and min.

• Initialize max and min variables with the first element of the array

• Iterate through the array and compare each element with max and min

• If the element is greater than max, update max

• If the element is smaller than min, update min

• Return max and min

Program to generate fibonacci number

• Use recursion or iteration to generate fibonacci sequence

• Start with 0 and 1 as first two numbers

• Add previous two numbers to get next number in sequence

Triggers are of two types: DML Triggers and DDL Triggers.

• DML Triggers are fired when a DML event occurs, such as INSERT, UPDATE, or DELETE.

• DDL Triggers are fired when a DDL event occurs, such as CREATE, ALTER, or DROP.

• Examples of DML Triggers include AFTER INSERT, AFTER UPDATE, and AFTER DELETE.

• Examples of DDL Triggers include AFTER CREATE, AFTER ALTER, and AFTER DROP.

A program to calculate the sum of digits in a given number.

• Take input from user or use a predefined number

• Use a loop to extract each digit from the number

• Add each digit to a variable to calculate the sum

• Print the sum of digits

Java is platform dependent because it compiles code into bytecode that is executed by the Java Virtual Machine (JVM).

• Java code is compiled into bytecode, which is a platform-independent representation of the code.

• The bytecode is then executed by the JVM, which is specific to each platform.

• This allows Java programs to run on any platform that has a compatible JVM.

• The JVM acts as an interpreter, translating the bytecode into machine code that can be executed by the underlying h...read more

Constructor is a special method that is called when an object is created.

• Constructors have the same name as the class they belong to.

• They are used to initialize the object's state.

• They can be overloaded to accept different parameters.

• If a class does not have a constructor, a default constructor is provided by the compiler.

Oops concepts are the fundamental principles of Object-Oriented Programming.

• Abstraction

• Encapsulation

• Inheritance

• Polymorphism

List is a dynamic array that can grow or shrink in size, while an array has a fixed size.

• List is a part of the Collections framework in Java, while an array is a basic data structure.

• List can store objects of different types, while an array can only store objects of the same type.

• List provides methods to add, remove, and access elements easily, while array requires manual manipulation.

• Example: List names = new ArrayList<>(); String[] namesArray = new String[5];

Bubble sorting is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements and swaps them if they are in the wrong order.

• Bubble sorting is a comparison-based algorithm.

• It is named as bubble sort because smaller elements bubble to the top of the list.

• It has a worst-case and average-case time complexity of O(n^2).

• Example: [5, 3, 8, 4, 2] -> [3, 5, 8, 4, 2] -> [3, 5, 4, 8, 2] -> [3, 5, 4, 2, 8] -> [3, 4, 5, 2, 8] -> [3, 4, 2, 5, 8] -> [3, 4, ...read more

GC stands for Garbage Collection, a process in which the runtime environment automatically manages memory by reclaiming unused objects.

• GC is a form of automatic memory management used in programming languages like Java, C#, and Python.

• It helps prevent memory leaks by identifying and freeing up memory that is no longer in use.

• There are different types of GC algorithms such as Mark and Sweep, Reference Counting, and Generational GC.

• Example: In Java, the JVM has a built-in Garba...read more

AOP stands for Aspect-Oriented Programming, which is a programming paradigm that aims to increase modularity by allowing the separation of cross-cutting concerns.

• AOP allows the separation of concerns that cut across multiple modules in a software application.

• Pointcut is a set of one or more join points where advice should be executed in an AOP system.

• Examples of pointcuts include method execution, method call, field access, etc.

RDBMS is a type of DBMS that manages data in a structured format using tables with relationships.

• RDBMS enforces referential integrity through foreign keys.

• RDBMS supports ACID properties for transactions.

• Examples of RDBMS include MySQL, Oracle, SQL Server.

• DBMS is a broader term that includes RDBMS but also includes other data models like hierarchical or network databases.

Yes, willing to relocate. Open to discussing queries.

• I am open to relocating for the right opportunity

• I am willing to discuss any queries or concerns related to relocation

• I have relocated for previous roles and am comfortable with the process

Syntax for switch and for each loop

• Switch syntax: switch(expression) { case value: // code block break; default: // code block }

• For each loop syntax: for (type variableName : arrayName) { // code block }

• Example for switch: switch (day) { case 1: System.out.println("Monday"); break; case 2: System.out.println("Tuesday"); break; default: System.out.println("Invalid day"); }

• Example for for each loop: int[] numbers = {1, 2, 3, 4, 5}; for (int number : numbers) { System.out.printl...read more

Garbage Collector is an automatic memory management system that frees up memory occupied by objects that are no longer in use.

• Garbage Collector is a part of the Java Virtual Machine that automatically manages memory allocation and deallocation.

• It identifies objects that are no longer in use and frees up the memory occupied by them.

• Garbage Collector helps prevent memory leaks and improves the performance of the application.

• Examples of Garbage Collector in programming languages...read more

Program to generate Fibonacci series.

• Declare variables for first two numbers of the series

• Use a loop to generate subsequent numbers

• Print the series