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Abstraction is the concept of hiding complex details and showing only the essential features of an object or system.
Abstraction allows us to focus on what an object does instead of how it does it
It helps in reducing complexity and improving efficiency
For example, a car is an abstraction of various components like engine, wheels, etc. We don't need to know the internal workings to drive it
Inheritance is a concept in object-oriented programming where a class inherits attributes and methods from another class.
Allows a class to inherit properties and behaviors from another class
Promotes code reusability and reduces redundancy
Creates a parent-child relationship between classes
Example: Class 'Car' can inherit from class 'Vehicle' to reuse common attributes like 'color' and 'speed'
Android states lifecycle includes onCreate, onStart, onResume, onPause, onStop, onDestroy.
onCreate - Activity is created
onStart - Activity is visible
onResume - Activity is interacting with user
onPause - Activity is partially visible
onStop - Activity is not visible
onDestroy - Activity is being destroyed
Polymorphism is the ability of a single function or method to operate on different types of data.
Polymorphism allows objects of different classes to be treated as objects of a common superclass.
There are two types of polymorphism: compile-time (method overloading) and runtime (method overriding).
Example of compile-time polymorphism: function overloading in Java.
Example of runtime polymorphism: method overriding in Java
Details about the last prject done
I applied via Naukri.com and was interviewed in Nov 2022. There were 2 interview rounds.
I applied via Company Website and was interviewed in Feb 2023. There were 2 interview rounds.
Deftsoft interview questions for popular designations
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I did my internship at XYZ Corporation.
Interned at XYZ Corporation
Worked in the marketing department
Assisted in creating social media campaigns
Conducted market research
Attended meetings with clients
I learned to take responsibility for my actions and to use my mistakes as opportunities for growth.
I learned to admit my mistakes and apologize when necessary
I learned to reflect on my mistakes and identify areas for improvement
I learned to seek feedback from others and use it to make positive changes
I learned to not be afraid of failure and to view it as a learning experience
For example, when I made a mistake at work ...
I have the skills, experience, and passion to contribute to the success of your company.
I have a proven track record of achieving targets and exceeding expectations.
I possess strong communication and interpersonal skills, which enable me to work effectively with colleagues and clients.
I am a quick learner and adaptable to new environments and technologies.
I am passionate about the industry and eager to contribute to th...
I know multiple programming languages including Java, Python, and C++.
Proficient in Java with experience in developing web applications using Spring framework
Familiar with Python for data analysis and machine learning
Experience in C++ for developing high-performance applications
Also familiar with HTML, CSS, and JavaScript for front-end development
Class is a blueprint for creating objects, encapsulation is the process of hiding data and methods within a class.
Class is a template or blueprint that defines the properties and behaviors of an object.
Encapsulation is the process of bundling data and methods together within a class, hiding the internal details from the outside world.
Other features of OOP include inheritance, polymorphism, and abstraction.
Inheritance a...
Program to find the sum of squares of each term of Fibonacci series
Generate Fibonacci series using loop or recursion
Calculate square of each term
Add all squares to get the sum
I would like to join Cognizant because of its reputation as a leading global technology and consulting company.
Cognizant has a strong presence in the industry and is known for its innovative solutions.
I am impressed by Cognizant's commitment to digital transformation and its ability to deliver value to clients.
The company offers excellent career growth opportunities and a supportive work environment.
Cognizant's diverse...
Yes, I know Java.
I have experience in Java programming.
I am familiar with Java syntax and concepts.
I have worked on Java projects in the past.
To retrieve data from the back end, you can use APIs or database queries.
Use API calls to fetch data from the back end server.
Execute database queries to retrieve data from the database.
Parse the response or query result to extract the required data.
Handle any necessary authentication or authorization for accessing the back end.
Examples: GET request to an API endpoint, SELECT query in SQL.
OOP is a programming paradigm based on the concept of objects, which can contain data and code.
OOP stands for Object-Oriented Programming
It focuses on creating objects that interact with each other to solve a problem
Encapsulation, inheritance, and polymorphism are key concepts in OOP
Example: A car object can have properties like color, make, and model, and methods like start and stop
OOP promotes code reusability and ma
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