Steemit Learning Club S23W1: I will create a mini project with a C++ program to convert currency, temperature, and measure.

Steemian Friends,
Today, I will participate in the Technology and development club of @mohammadfaisal, @kafio, and @alejos7ven, sirs of Steemit Learning Club S23W1. Today, I will create a mini project with a C++ program to convert currency, temperature, and measure. I can practice my C++ programs by participating in the tech club and learning more by taking advice from mentors. I hope everyone will help me learn programming.

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Today, I will show you a small project with one of my favourite programming languages ​​(C++). I will show currency and temperature conversion and measure conversion using a C++ program. I love writing C++ programs. Although I am an electrical engineer, I still love to learn to program. I get an opportunity to practice programming language through learning the challenges of the Steemit platform. Below is the simple technique of creating the program that users can learn by watching.

Step01:

I first declared the header file of the C++ program. This file is called a library file and holds declarations of functions and classes used in the program. At the beginning of writing a C++ program, the header file must be written. I have declared the header file of my written program below.

#include < iostream>

Step02:

Then, I used the namespace std: to avoid using std:: for cout and cin. So, I wrote the namespace after writing the header file of my program.

using namespace std;

Step03:

Then, I wrote the comment section in between writing the program. I explained the program's workings through comments. Read my program comments to get an idea about the program. The method of writing comments is given below.

// Currency conversion (money to USD)
// Temparature conversion (Celsius to fahrenheit)
// Length conversion (Meter to feet)

Step04:

Then, I declared the main function and variables of the C++ program. My program will do the conversion in three parts. So, I declared a function and variable for the money conversion. Then, I declared the function and variable for the temperature conversion. Then, I declared the function and variable to convert the third measurement. Below, I have shown three parts of function and variable declaration.

I have used double variables in each section because the value of money, temperature, and measurement can be decimal. 1 USD = 130 taka (local) of our country has been inputted to convert.

Then, complete the conversion using the USD = bdt/130 formula and print the result with cout.

Then, I declared a double variable to convert from Celsius to Fahrenheit and output the Fahrenheit using the formula Fahrenheit = (Celsius * 9/5)+32. I expressed the result through cout.

Similarly, by declaring a double variable, we use the formula feet = meter*3.28 to convert the measurement and express the result with cout. Here, take 1 meter = 3.28 feet.

Currency Conversion:

void currencyConverter() {
double bdt, usd;
cout << "Write money: ";
cin >> bdt;
usd = bdt / 130; // Let's say 1 dollar = 130 Taka
cout << "Dollar Conversion: $" << usd << endl;
}

Temperature Conversion:

void temperatureConverter() {
double celsius, fahrenheit;
cout << "Write the celsius Temparature: ";
cin >> celsius;
fahrenheit = (celsius * 9/5) + 32;
cout << "fahrenheit conversion: " << fahrenheit << "°F" << endl;
}

length Conversion:

void lengthConverter() {
double meters, feet;
cout << "Write the meter value: ";
cin >> meters;
feet = meters * 3.28084; // 1 meter = 3.28 feet
cout << "feet conversion: " << feet << " ft" << endl;
}

Step05:

Then, I declared a main function. I used condition, loop, and control statements to convert as required among the three conversions.

Here, 1 is money conversion, 2 is temperature conversion, 3 is measurement conversion, and 4 will end the program. A switch statement is used to complete this task. The result is shown through Cout according to the condition.

int main() {
int choice;
do {
cout << "\nConverter Menu \n";
cout << "1. Currency conversion (money to USD)\n";
cout << "2. Temparature conversion (Celsius to fahrenheit)\n";
cout << "3. Length conversion (Meter to feet)\n";
cout << "4. Program End\n";
cout << "Your Choice: ";
cin >> choice;
switch (choice) {
case 1:
currencyConverter();
break;
case 2:
temperatureConverter();
break;
case 3:
lengthConverter();
break;
case 4:
cout << "Clossing the program!\n";
break;
default:
cout << "Incorrect input\n";
}
} while (choice != 4);
return 0;
}

I made the above work piece by piece in program form. I output the entire program through the online compiler and am very happy with the output.

Step06:

Then I write the whole program in online compiler and get the output. I type 1 from the converter menu. Then I input 500 bdt. Then convert to usd and get 3.84 USD.

Then I enter 2 from the converter menu. Then type 500 Celsius as input. As output I get 932F. I have given the screen shot by blocking the red color in the picture.

Then I type 3 from the main menu. Then enter 500 meters to convert the measurement. Then I get 1640.42 feet as output. Below I have given screenshot with red color block.

SL No.	My Invited Steemit Friends
1	@dove11
2	@lirvic
3	@rmm31