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I applied via Job Fair and was interviewed in Feb 2023. There were 3 interview rounds.
React Native is an open-source UI software framework created by Meta Platforms, Inc. It is used to develop applications for Android, Android TV, iOS, macOS, tvOS, Web, Windows and UWP by enabling developers to use the React framework along with native platform capabilities.
User input in React Native is handled through event handlers and state management.
Event handlers are used to capture user input such as onPress, onChangeText, etc.
State management is used to update the UI based on user input.
Forms can be created using TextInput, Picker, Checkbox, etc.
Validation can be done using libraries like Formik and Yup.
Integrating React Native in an existing Android app
Install React Native CLI and create a new project
Add React Native code to existing Android project
Configure Gradle to include React Native dependencies
Use React Native components in existing Android code
Test and debug the integrated app
React Native code is processed by bundling, transpiling, and rendering components to show output on mobile screen.
React Native code is bundled using tools like Metro bundler
The bundled code is transpiled to JavaScript using Babel
Components are rendered using the React Native bridge to native UI components
The final output is displayed on the mobile screen
Core components in React Native include View, Text, Image, ScrollView, and TextInput.
View - container for other components
Text - display text
Image - display images
ScrollView - scrollable container
TextInput - input field for text
FlatList is a component in React Native used to render a scrollable list of items.
FlatList is highly performant and efficient for rendering large lists of data.
It supports both horizontal and vertical scrolling.
It has built-in support for item separators and empty list messages.
It supports dynamic loading of data as the user scrolls through the list.
Example code:
Asking the dp and tree and other
I applied via campus placement at Anna University and was interviewed in Apr 2024. There were 3 interview rounds.
General topics were given
Curd operation with SQL connectivity
I applied via Job Fair and was interviewed in Jun 2023. There were 3 interview rounds.
Ms office,Core Java , Tally , C,
In my Opinion,view , If you ask me, As far as I can see/I am Concerned , It seems to me that , I think /feel/reckon/ belive , If you want my option , What we have to decide
I applied via campus placement at CDAC, Noida and was interviewed in Jan 2022. There were 4 interview rounds.
Best way to prefer java, core java and most imp spring boot because many of companies required spring boot now a days
Path variable is used to locate executable files while classpath variable is used to locate Java classes.
Path variable is used by the operating system to locate executable files.
Classpath variable is used by Java to locate classes and resources.
Path variable is system-specific while classpath variable is Java-specific.
Path variable is set by the user while classpath variable is set by the developer.
Example of path vari...
Enum is a special data type in Java used to define a set of constants.
Enums are used to represent a fixed number of values that do not change.
They are declared using the enum keyword.
Each enum constant is an object of the enum type.
Enums can have constructors, methods, and fields.
Example: enum Color { RED, GREEN, BLUE }
Enums can also have values associated with them, like Color.RED(255, 0, 0).
2 phase commit is a protocol used to ensure distributed transactions are either committed or rolled back.
Used in distributed systems where multiple databases are involved in a transaction
Ensures all databases either commit or rollback the transaction
Involves a coordinator and multiple participants
Coordinator sends a prepare message to participants, who respond with either commit or abort
If all participants respond with...
Yes, Java is completely object oriented.
Java is designed to be completely object oriented.
All code in Java is written inside classes and objects.
Java supports encapsulation, inheritance, and polymorphism.
Java does have some non-object oriented features like primitive data types.
However, even these can be treated as objects using wrapper classes.
Exception is an event that occurs during the execution of a program and disrupts the normal flow of instructions.
Exceptions are objects that are thrown at runtime when an abnormal condition occurs
Java provides a set of predefined exceptions that can be used to handle errors
Exceptions can be caught and handled using try-catch blocks
Unchecked exceptions are those that are not checked at compile-time, while checked except
I applied via Job Portal and was interviewed in Mar 2022. There were 2 interview rounds.
2 rounds easy
I applied via Campus Placement and was interviewed in Aug 2021. There were 5 interview rounds.
Switch case is used for multiple conditions while if else is for binary conditions. Sorting can be done using various algorithms.
Switch case is faster than if else for multiple conditions
If else is more readable for binary conditions
Sorting can be done using bubble sort, insertion sort, quick sort, etc.
Example code for bubble sort: for(i=0;i
Difference between compiler and interpreter with a coding challenge
Compiler translates the entire code into machine language before execution while interpreter translates line by line during execution
Compiler generates an executable file while interpreter does not
Compiler is faster but debugging is harder while interpreter is slower but debugging is easier
Coding challenge: Write a program to find the sum of two numbers
I applied via Naukri.com and was interviewed in Dec 2020. There were 3 interview rounds.
An object is an instance of a class that encapsulates data and behavior.
Objects have attributes (data) and methods (behavior).
Objects can interact with each other through method calls.
Objects can be created from classes.
Examples of objects include a car, a person, or a bank account.
Multi threading is the ability of a program to perform multiple tasks concurrently.
It allows for better utilization of CPU resources
It can improve program performance and responsiveness
Examples include web servers handling multiple requests simultaneously
It requires careful management of shared resources to avoid race conditions
Yes, we can create multiple objects in programming.
Objects are instances of a class.
We can create multiple objects of the same class.
Each object has its own set of instance variables and methods.
Objects can interact with each other through their methods.
Example: creating multiple instances of a 'Person' class for different people.
Encapsulation types are data, procedural and combination.
Data encapsulation hides data from outside world and provides access through methods.
Procedural encapsulation hides implementation details of a procedure.
Combination encapsulation is a mix of data and procedural encapsulation.
Examples include private variables in a class, access modifiers in Java, etc.
Some of the top questions asked at the JOVI VENTURES Software Developer interview -
TCS
Accenture
Cognizant
Infosys