What are the main components of a React Native app?

Vaibhav Kothia May 30, 2023 0 Comments

The main components of a React Native app are:

1. Views: This is the most basic component used to display information. Examples include Text, Image, Button, and View.

2. State: This is used to store and manage the data of the app. Examples include setState() and useState().

3. Styling: This is used to create the look and feel of the app. Examples include StyleSheet, Flexbox, and Platform-specific styles.

4. Navigation: This is used to navigate between different screens of the app. Examples include React Navigation, React Native Navigation, and React Native Router Flux.

5. APIs: This is used to access external data sources. Examples include Fetch, Axios, and AsyncStorage.

6. Modules: This is used to add additional features to the app. Examples include React Native Maps, React Native Camera, and React Native Push Notifications.

What is a class in Java?

Vaibhav Kothia May 26, 2023 0 Comments

A class in Java is a template that defines the properties and behaviors of an object. It is the basic building block of an object-oriented language.

For example, a class called “Car” might have properties such as make, model, color, and year. It could also have behaviors such as start, accelerate, brake, and turn. The class would define how these properties and behaviors are related.

How do you add comments in CSS?

Vaibhav Kothia May 26, 2023 0 Comments

Comments in CSS are added with the /* */ syntax.

/* This is an example of a CSS comment */
body {
background-color: #e6e6e6;
}

What is the difference between a cipher and a code?

Vaibhav Kothia May 26, 2023 0 Comments

A cipher is an algorithm for performing encryption or decryption—a series of well-defined steps that can be followed as a procedure. An example of a cipher is the Advanced Encryption Standard (AES).

A code is a system of symbols, letters, words, or signals that are used instead of ordinary words and numbers to send messages or store information. An example of a code is Morse code.

How do you declare a variable in Java?

Vaibhav Kothia May 26, 2023 0 Comments

A variable in Java is declared using the following syntax:

= ;

For example:

int number = 10;
String name = “John”;