Done

First, let's create a new text file in your text editor and save it as 'evenOdd.c'. This file will contain our C code.

We'll start by including the standard input/output library with #include <stdio.h>, which allows us to use functions like printf() and scanf().

Then, we declare our main function where our code will execute. Inside, we'll declare an integer variable num to store the user input.

We'll prompt the user to enter an integer with printf(), and use scanf() to read and store that input.

Using the modulus operator %, we'll determine if num is even or odd. If a number is divisible by 2 (i.e., num % 2 == 0), it's even; otherwise, it's odd. We'll output the result using printf().

#include <stdio.h>

int main() {
    int num;
    printf("Enter an integer: ");
    scanf("%d", &num);

    if (num % 2 == 0)
        printf("%d is even.", num);
    else
        printf("%d is odd.", num);

    return 0;
}
            

This program checks if the entered integer is even or odd.

Done

Use your C compiler to compile the code. For GCC, you can use the following command in the terminal:

gcc -o evenOdd yourProgram.c

Alternatively, if you are using an IDE, you can often compile programs with a simple click of a button. Refer to the Introduction Page for more details on using your specific IDE.

Replace "yourProgram.c" with the name of your file.

Done

After compiling the code, run the executable:

./evenOdd

In an IDE, running the program can also typically be done with the click of a button. See the Introduction Page for guidance specific to your IDE.

Follow the on-screen prompts to enter an integer and see if it's even or odd.