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Program to Find Number of Elements in Array

Program to Find Number of Elements in Array

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  • Write a program to Find Number of Elements in Array in C
  • Write a program to Find Number of Elements in Array in C++
  • Write a program to Find Number of Elements in Array in Python
  • Write a program to Find Number of Elements in Array in PHP
  • Write a program to Find Number of Elements in Array in Java
  • Write a program to Find Number of Elements in Array in Java Script
  • Write a program to Find Number of Elements in Array in C#

Explanation:

Determining the array’s size is a necessary step in the reasoning to determine how many elements are in it. Because some computer languages include built-in functions for this purpose, while others require explicit handling, the particular method may vary depending on the language.

Steps:

  1. Define the array.
  2. Use a method or logic to determine its size:
    • In statically allocated arrays (e.g., C), divide the total size of the array in memory by the size of one element.
    • In dynamically allocated arrays (e.g., Python, Java, etc.), use a built-in function like len() or .length

Program to Find Number of Elements in Array

#include <stdio.h>

int main() {
    int arr[] = {10, 20, 30, 40, 50}; // Example array
    int size = sizeof(arr) / sizeof(arr[0]);
    
    printf("Number of elements in the array: %d\n", size);
    return 0;
}


#include <iostream>
using namespace std;

int main() {
    int arr[] = {10, 20, 30, 40, 50}; // Example array
    int size = sizeof(arr) / sizeof(arr[0]);
    
    cout << "Number of elements in the array: " << size << endl;
    return 0;
}


arr = [10, 20, 30, 40, 50]  # Example array

print("Number of elements in the array:", len(arr))


<?php
$arr = array(10, 20, 30, 40, 50); // Example array

echo "Number of elements in the array: " . count($arr) . "\n";
?>


public class Main {
    public static void main(String[] args) {
        int[] arr = {10, 20, 30, 40, 50}; // Example array
        
        System.out.println("Number of elements in the array: " + arr.length);
    }
}


const arr = [10, 20, 30, 40, 50]; // Example array

console.log("Number of elements in the array:", arr.length);


using System;

class Program {
    static void Main() {
        int[] arr = {10, 20, 30, 40, 50}; // Example array
        
        Console.WriteLine("Number of elements in the array: " + arr.Length);
    }
}

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