Installation & Execution: Running C Programs in Visual Studio Code 2022 & Installation

Installation & Execution: Running C Programs in Visual Studio Code 2022

Installation

Program 1: Hello World

File name: myfirstprogram.c

Code:

#include <stdio.h>

int main() {
    printf("Hello, world!\n");
    return 0;
}

What happened:

I opened VS Code, wrote this little program, pressed Run or the green play button.
It said:

Hello, world!

Program 2: Show the Larger Number Between Two Numbers

File name: shows_largerno._bet2no.c 

Code:

#include <stdio.h>

int main() {
    int num1, num2;

    // Ask for two numbers 
    printf("Enter first number: ");
    scanf_s("%d", &num1);

    printf("Enter second number: ");
    scanf_s("%d", &num2);

    // Compare the numbers
    if (num1 > num2) {
        printf("The larger number is: %d\n", num1);
    }
    else if (num2 > num1) {
        printf("The larger number is: %d\n", num2);
    }
    else {
        printf("Both numbers are equal.\n");
    }

    return 0;
}

What happened:

I ran it, gave it two numbers like 50 and 57, and my program told me:

Enter first number: 50  
Enter second number: 57  
Larger number is: 57

Yup, it worked perfectly. 

Program 3: Calculator in C (Basic 4 Operations +-*/)

File name: calculator_in_c.c

Code:

#include <stdio.h>

int main() {
    float a, b;

    // gets the input from user
    printf("Enter first number: ");
    scanf_s("%f", &a);  

    printf("Enter second number: ");
    scanf_s("%f", &b);

    // perform calculations part
    printf("Addition: %.f\n", a + b);
    printf("Subtraction: %.f\n", a - b);
    printf("Multiplication: %.f\n", a * b);

    // division 
    if (b == 0) {
        printf("Division: cannot divide by zero\n");
    }
    else {
        printf("Division: %.2f\n", a / b);
    }

    return 0;
}

What happened:

I typed 10 and 2 as input.
And my mini-calculator replied:

Addition: 12  
Subtraction: 8  
Multiplication: 20
Division: 5.00