50+ Application Development Associate Interview Questions and Answers

Create a program to find the sum of even and odd digits in an integer.

• Iterate through each digit of the integer and check if it is even or odd

• Keep track of the sum of even digits and odd digits separately

• Print the sums of even and odd digits at the end

Evaluate postfix expressions by applying operators after operands. Return result modulo (10^9+7).

• Read the postfix expression from input

• Use a stack to store operands and apply operators

• Perform modular division when necessary

• Output the final result for each test case

Accenture is working on various technologies including AI, cloud computing, blockchain, and IoT.

• AI: Accenture is using AI for various applications such as chatbots, predictive analytics, and natural language processing.

• Cloud computing: Accenture is helping clients migrate to cloud platforms such as AWS, Azure, and Google Cloud.

• Blockchain: Accenture is working on blockchain solutions for industries such as finance, healthcare, and supply chain management.

• IoT: Accenture is help...read more

Find duplicate elements in an array

• Iterate through the array and compare each element with all other elements

• If a match is found, add it to a separate array

• Return the array of duplicate elements

OOPs concept stands for Object-Oriented Programming which is a programming paradigm based on the concept of objects.

• OOPs focuses on creating objects that contain both data and functions to manipulate that data.

• It emphasizes on encapsulation, inheritance, and polymorphism.

• Encapsulation is the process of hiding the implementation details of an object from the outside world.

• Inheritance allows a class to inherit properties and methods from another class.

• Polymorphism allows object...read more

I would rate my coding skills at 4 out of 5.

• I have experience in multiple programming languages such as Java, Python, and C++.

• I am comfortable with data structures and algorithms.

• I have worked on various projects and have a good understanding of software development principles.

• I am always eager to learn and improve my coding skills.

You can cut a cake into 12 pieces with 3 cuts by making strategic cuts through the cake layers.

• First cut: Make a vertical cut through the center of the cake, dividing it into 2 equal halves.

• Second cut: Make another vertical cut perpendicular to the first cut, resulting in 4 equal quarters.

• Third cut: Make a horizontal cut through the middle of the cake, which will slice all 4 quarters into 2 layers each, totaling 12 pieces.

Java is pure object oriented because everything in Java is an object, and platform independent due to its bytecode and JVM.

• Java is pure object oriented because it supports all the features of OOP like inheritance, encapsulation, polymorphism, and abstraction.

• In Java, everything is treated as an object, even primitive data types are wrapped in objects.

• Java is platform independent because it compiles code into bytecode which can run on any platform with Java Virtual Machine (JV...read more

Cloud is a technology that allows users to access data and applications over the internet.

• Cloud computing involves the delivery of computing services, including servers, storage, databases, networking, software, analytics, and intelligence, over the internet.

• Cloud services can be categorized into three main types: Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS).

• Examples of cloud providers include Amazon Web Services (AWS), Mi...read more

Address the issue directly with the team member and offer support or resources to help them complete the task on time.

• Have a one-on-one conversation with the team member to understand any challenges they may be facing.

• Offer assistance or resources to help them complete the task within the deadline.

• Set clear expectations and deadlines for future tasks to avoid similar issues.

• Consider reassigning tasks or adjusting deadlines if necessary.

• Provide constructive feedback and encour...read more

Overriding is when a subclass provides a specific implementation of a method that is already provided by its parent class, while overloading is when multiple methods have the same name but different parameters.

• Overriding involves changing the method implementation in a subclass to provide a specific behavior, while overloading involves having multiple methods with the same name but different parameters.

• Overriding is used for runtime polymorphism, while overloading is used for...read more

Images are typically stored using data types like BLOB, Base64, or file paths in databases.

• BLOB (Binary Large Object): Used to store binary data like images directly in the database.

• Base64 Encoding: Converts image data into a text format, useful for embedding images in HTML.

• File Paths: Storing the path to the image file on the server, allowing for efficient storage and retrieval.

ArrayList is faster for random access, LinkedList is faster for insertion/deletion at start/end.

• ArrayList: O(1) for inserting at end, O(n) for inserting at start, O(n) for deleting at start, O(1) for deleting at end.

• LinkedList: O(1) for inserting at start/end, O(n) for deleting at start/end.

Artificial Intelligence (AI) refers to the simulation of human intelligence in machines that are programmed to think and learn.

• AI encompasses various technologies, including machine learning, natural language processing, and robotics.

• Machine learning allows systems to learn from data and improve over time, such as recommendation algorithms used by Netflix.

• Natural language processing enables machines to understand and respond to human language, exemplified by virtual assistant...read more

I approach coding questions methodically, focusing on problem understanding, efficient solutions, and thorough testing.

• Understand the problem: I read the question carefully to grasp requirements and constraints.

• Break down the problem: I decompose complex problems into smaller, manageable parts.

• Choose the right data structures: For example, using a hash map for quick lookups.

• Write pseudocode: I outline my logic before diving into actual coding to ensure clarity.

• Test thoroughly...read more

I discovered my passion for software development through my college projects, which allowed me to combine my mechanical engineering background with coding skills.

• Explored coding during college projects and found a passion for software development

• Realized the potential to apply mechanical engineering knowledge in software development

• Enjoyed the problem-solving aspect of coding and its creative possibilities

AI is transforming various sectors with applications like virtual assistants, autonomous vehicles, and personalized medicine.

• Virtual Assistants: Siri, Alexa, and Google Assistant help users with tasks and information.

• Autonomous Vehicles: Companies like Tesla and Waymo use AI for self-driving technology.

• Recommendation Systems: Netflix and Amazon use AI to suggest content and products based on user preferences.

• Healthcare Diagnostics: AI algorithms analyze medical images for ear...read more

Python is a versatile, high-level programming language used for web development, data analysis, artificial intelligence, and more.

• Python is easy to learn and read, making it a popular choice for beginners.

• It has a vast collection of libraries and frameworks for various purposes.

• Python is used in web development (Django, Flask), data analysis (Pandas, NumPy), artificial intelligence (TensorFlow, Keras), and more.

• It supports multiple programming paradigms, including object-orie...read more

AWS provides a wide range of services including compute, storage, database, networking, analytics, machine learning, and more.

• Compute services: EC2, Lambda, Elastic Beanstalk

• Storage services: S3, EBS, Glacier

• Database services: RDS, DynamoDB, Redshift

• Networking services: VPC, Direct Connect, Route 53

• Analytics services: Athena, EMR, Kinesis

• Machine Learning services: SageMaker, Rekognition, Polly

• Other services: IoT, Security, Management Tools

• AWS also offers a marketplace for thi...read more

I have experience in both C and Java, focusing on application development, problem-solving, and efficient coding practices.

• Proficient in Java, developed a web application using Spring Boot and Hibernate for a local business.

• Experience with C in embedded systems, optimized code for a microcontroller to improve performance by 30%.

• Utilized Java's multithreading capabilities to enhance application responsiveness in a real-time data processing project.

• Implemented RESTful APIs in J...read more

Program to calculate factorial of a number

• Use a loop to multiply numbers from 1 to the given number

• Handle edge cases like 0 and negative numbers

• Factorial of 0 is 1

• Example: For input 5, factorial is 5*4*3*2*1 = 120

Object-oriented programming concepts that help in organizing and structuring code.

• Encapsulation: Wrapping data and methods together in a single unit (class). Example: A car class with properties like color and methods like start() and stop().

• Inheritance: Creating new classes (derived classes) from existing classes (base classes) to inherit properties and methods. Example: A class hierarchy with a base class Animal and derived classes like Dog and Cat.

• Polymorphism: The ability...read more

The static keyword in Java is used to create class-level variables and methods that can be accessed without creating an instance of the class.

• Static variables are shared among all instances of a class.

• Static methods can be called without creating an object of the class.

• Static blocks are used to initialize static variables.

• Static keyword can also be used to create static nested classes.

Developed a web-based application for managing student attendance using React and Node.js, enhancing tracking efficiency.

• Utilized React for the front-end, providing a responsive user interface.

• Implemented Node.js and Express for the back-end, ensuring smooth data handling.

• Integrated MongoDB for database management, allowing for efficient data storage and retrieval.

• Incorporated user authentication to secure access to the application.

• Conducted user testing to gather feedback an...read more

Code for Fibonacci series in Java

• Declare variables for first two numbers in series

• Use a loop to generate subsequent numbers

• Print each number in the series

• Example: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34

• Use recursion for a more efficient solution

My least favorite subject in college was statistics.

• I struggled with understanding the concepts and applying them in real-life scenarios.

• The heavy use of mathematical formulas and calculations was overwhelming for me.

• I found it difficult to stay engaged and interested in the subject matter.

• However, I did appreciate the importance of statistics in various fields such as business and research.

Strengths include strong problem-solving skills and attention to detail. Weaknesses include difficulty with public speaking and tendency to overthink.

• Strength: Strong problem-solving skills

• Strength: Attention to detail

• Weakness: Difficulty with public speaking

• Weakness: Tendency to overthink