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4i apps solutions Trainee Interview Questions and Answers
4i apps solutions Trainee Interview Experiences
1 interview found
Anonymous
Interview Questionnaire
4 Questions
- Q1. Core java qns. concentrated more on oops and sql basic qns
- Q2. What is method overloading
- Ans.
Method overloading is the ability to define multiple methods with the same name but different parameters.
Method overloading allows a class to have multiple methods with the same name but different parameters.
The methods must differ in the number, type, or order of their parameters.
Example: void print(int a), void print(int a, int b), void print(String s)
Method overloading is resolved at compile-time based on the number
- Q3. Define constructor
- Ans.
A constructor is a special method that is used to initialize objects of a class.
Constructors have the same name as the class they belong to.
They are called automatically when an object is created.
They can take parameters to set initial values for object properties.
If a class does not have a constructor, a default constructor is provided by the compiler.
Constructors can be overloaded to provide multiple ways of initiali
- Q4. Different joins in sql and explain them
- Ans.
Different types of joins in SQL and their explanations
Inner join: returns only the matching rows from both tables
Left join: returns all rows from the left table and matching rows from the right table
Right join: returns all rows from the right table and matching rows from the left table
Full outer join: returns all rows from both tables, with NULL values in place of non-matching rows
Cross join: returns the Cartesian prod
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Top trending discussions
Interview questions from similar companies
Selected
I applied via Naukri.com and was interviewed in Jun 2023. There were 3 interview rounds.
(1 Question)
- Q1. Basic Screening and profile related details and salary offering
(1 Question)
- Q1. Seo , on-page, off-page,
Interview Preparation Tips
I applied via Naukri.com and was interviewed in Apr 2022. There were 3 interview rounds.
(1 Question)
- Q1. Basic Q's about the Technology that we are working on
(1 Question)
- Q1. Realtime scenario Q's on the application
(1 Question)
- Q1. Salary discussion and working experiences with previous organisation
Interview Preparation Tips
Selected
I appeared for an interview in Sep 2024, where I was asked the following questions.
- Q1. Detailed process about OFSAA Support
- Q2. In depth knowledge of the application process
Selected
I applied via Naukri.com and was interviewed before Nov 2021. There were 2 interview rounds.
(2 Questions)
- Q1. Oops concepts, core java
- Q2. Java 8 stream api and lambda
Interview Preparation Tips
I applied via Approached by Company
(2 Questions)
- Q1. Sql is the most important , Focus on Joins ,Sub query and Sql basics
- Q2. Joining tables with different joins
- Ans.
Joining tables with different joins in SQL
Use INNER JOIN to return rows when there is at least one match in both tables
Use LEFT JOIN to return all rows from the left table and the matched rows from the right table
Use RIGHT JOIN to return all rows from the right table and the matched rows from the left table
Use FULL JOIN to return rows when there is a match in one of the tables
Skills evaluated in this interview
Selected
I applied via Walk-in and was interviewed before Aug 2022. There were 4 interview rounds.
Test of SQL, Tableau and other skills based on your resume on Skillate
(1 Question)
- Q1. SQL and other skills technical questions
(1 Question)
- Q1. Manager round / 2nd technical round
Selected
I appeared for an interview in Feb 2025, where I was asked the following questions.
- Q1. What kind of designs can you create for clients?
- Ans.
I create tailored designs that enhance user experience, brand identity, and operational efficiency for diverse clients.
User Interface (UI) Design: Crafting visually appealing and intuitive interfaces for web and mobile applications.
Brand Identity Design: Developing logos, color schemes, and typography that reflect a client's values and mission, e.g., a tech startup.
Product Design: Creating functional and aesthetically ...
- Q2. What skills do you possess as a UI/UX designer?
- Ans.
I possess a blend of design, research, and technical skills that enhance user experience and interface design.
User Research: Conducting interviews and surveys to understand user needs, like creating personas for targeted design.
Wireframing & Prototyping: Using tools like Figma and Sketch to create wireframes and interactive prototypes for user testing.
Visual Design: Applying principles of color theory and typograph...
Selected
I applied via Approached by Company and was interviewed in Apr 2024. There was 1 interview round.
(2 Questions)
- Q1. BASIC JAVASCRIPT
- Q2. OBDX RELATED backend and front end
I applied via Naukri.com and was interviewed in Jul 2020. There were 4 interview rounds.
Interview Questionnaire
5 Questions
- Q1. How to implement Sqlite database in React Native?
- Ans.
Sqlite database can be implemented in React Native using 'react-native-sqlite-storage' package.
Install 'react-native-sqlite-storage' package using npm.
Import SQLite from 'react-native-sqlite-storage'.
Create a database using SQLite.openDatabase() method.
Execute SQL queries using executeSql() method.
Close the database connection using close() method.
- Q2. What are generator functions?
- Ans.
Generator functions are functions that can be paused and resumed, allowing for lazy evaluation of data.
Generator functions use the yield keyword to pause execution and return a value.
They can be used to generate an infinite sequence of values.
They are memory efficient as they only generate values when needed.
Example: function* myGenerator() { yield 1; yield 2; yield 3; }
Example: const infiniteGenerator = function*() {
- Q3. How to implement push notifications in Android and iOS?
- Ans.
Push notifications can be implemented in Android and iOS using Firebase Cloud Messaging (FCM) and Apple Push Notification service (APNs) respectively.
For Android, integrate FCM SDK in the app and use FCM console to send notifications.
For iOS, create an APNs certificate, configure the app to receive notifications, and use APNs to send notifications.
Both platforms require handling of notification payload in the app to di...
- Q4. How do you use in your last app?
- Ans.
I used React Native for my last app.
Developed UI components using React Native
Integrated APIs to fetch and display data
Implemented Redux for state management
Used Firebase for authentication and database
Optimized app performance using React Native Debugger
- Q5. What is the difference between functional components and non functional components?
- Ans.
Functional components are stateless and return UI elements based on input props, while non-functional components have state and can change UI based on user interaction.
Functional components are simpler and easier to test than non-functional components.
Non-functional components can have state and lifecycle methods, while functional components cannot.
Examples of functional components include buttons, labels, and icons, w...
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