There are several databases that can be used in Android, including SQLite, Room, and Firebase Realtime Database. In this article, you will learn how to perform a simple database operation using Android Room. What is...
In this article we will look at what is an exception?, what is exception handling?, and how java supports exception handling. In general, the errors in programs can be categorized into three types: Syntax...
In JavaScript, checking if a string contains a substring is a common task that can be achieved in a number of ways. In this post, we will explore different methods to determine if a given string contains a substring...
Java program that calculates the area of a cylinder and a circle using the super keyword: import java.util.*; class Shape { double radius; Shape(double r) { radius = r; } double area() { return 0.0; } } class Circle...
PHP program that accepts the dimensions of a cylinder and prints its surface area and volume: <?php function surfaceArea($radius, $height) { return 2 * pi() * $radius * $height + 2 * pi() * pow($radius, 2); }...
Problem: Write a php script to demonstrate arithmetic operators, comparison operator, and logical operator. Solution: PHP script that demonstrates the use of arithmetic operators, comparison operators, and logical...
Problem: Write a php script to display welcome message Solution: Here’s a simple PHP script that displays a welcome message <!DOCTYPE html> <html> <head> <title>Welcome...
In R, a matrix is a two-dimensional array of data, with rows and columns. Matrices are often used to store and manipulate data sets in a compact and efficient manner. What is Matrix? A matrix is a two-dimensional array...
An example Java program to find the third largest number among five numbers: import java.util.Scanner; public class ThirdLargest { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int[] nums...
Here is an example of how to find the second largest number in a list in Python: #code4example.com def second_largest(numbers): first = second = float('-inf') for n in numbers: if n > first: second = first first = n...
Choosing a database for a C# .NET web application is an important decision as it affects the performance, scalability, and cost of the application. The following are the most popular database options for C# .NET web...
In R, a matrix is a two-dimensional array-like data structure, where elements are stored in rows and columns. Matrices are a powerful data structure for numerical computations and are commonly used in many areas...