Free Programming Source Codes and Computer Programming Tutorials

Thursday, May 11, 2023

Square a Number Using Pointers in C

A program to ask the user to give a number and then the program will convert the given number into square equivalent using pointers in C programming language.

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Program Listing
#include <stdio.h>

int main() {
   int num, *ptr, square;

   printf("Enter a number: ");
   scanf("%d", &num);

   ptr = &num;

   square = (*ptr) * (*ptr);

   printf("The square of %d is %d", num, square);

   return 0;
}

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Euro To Philippine Peso in C++

A program to ask the user to give Euro currency value and convert it into Philippine peso equivalent using C++ programming language.

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=================================================

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Program Listing
#include <iostream>
#include <iomanip>

using namespace std;

#define Philippine_Peso  61.01;

int main() {
    double euro, exchange_rate, peso;

    cout <<"\n\n";
    cout << "\tEuro To Philippine Peso in C++\n\n";

    // Input the Euro amount
    cout << "\tEnter the amount in Euro: ";
    cin >> euro;


   // Convert Euro to Philippine Peso
    peso = euro * Philippine_Peso;

    cout <<"\n\n";

    // Display the result
    cout << fixed << setprecision(2);
    cout <<"\t"<< euro << " Euro is equal to " << peso << " Philippine Peso." << endl;

    return 0;
}

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Meters To Centimeters in C

A program to ask the user to give length in meters and then the program will convert the given meters value into centimeters equivalent using C programming language.

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=================================================

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You can buy my book in introduction to computer networking at 
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09173084360

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Program Listing

#include <stdio.h>

int main() {
    float meters, centimeters;

    printf("\n\n\tMeters To Centimeters in C\n\n\n");
    printf("\tEnter length in meters: ");
    scanf("%f", &meters);

    centimeters = meters * 100;

    printf("\n\t%.2f meters is equal to %.2f centimeters\n", meters, centimeters);

    return 0;
}

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Saturday, May 6, 2023

Area of the Circle Using Kotlin

A program to compute the area of the circle using Kotlin programming language.

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=================================================

You can buy my C++ book online at  

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You can buy my book in introduction to computer networking at 
https://www.unlimitedbooksph.com/product-page/introduction-to-computer-networking

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Jake Pomperada

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Thank you very much for your support.





Program Listing
import kotlin.math.*

fun main() {
    val r = 8.12
    val area = PI * r * r
    val roundedArea = round(area * 100) / 100 // round to 2 decimal places
    
    println("\n\nArea of a Circle in Kotlin\n");
    println("Give radius :  $r\n");
    println("The area of the circle is: $roundedArea")
}