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Displaying Output in C

In C, you can display output to the console or terminal using the printf function from the standard input/output library (stdio.h). Here's a basic overview of how to use printf to display output in C: 


#include 

int main() {
    // Displaying text
    printf("Hello, World!\n");

    // Displaying variables
    int age = 25;
    printf("My age is %d years old.\n", age);

    // Displaying floating-point numbers
    double pi = 3.14159;
    printf("The value of pi is approximately %.2f\n", pi);

    // Displaying characters
    char grade = 'A';
    printf("My grade is %c\n", grade);

    // Displaying strings
    char name[] = "John";
    printf("My name is %s\n", name);

    return 0;
}

In the above example:

  • printf is used to print text and variables to the console.
  • You use format specifiers like %d, %f, %c, and %s to indicate where and how the variables should be inserted into the output string.
  • \n is used for a newline character to move to the next line after printing.
  • The format specifiers must match the type of the variables you're trying to print. %d is for integers, %f for floating-point numbers, %c for characters, and %s for strings.
  • You can also include literal text within the double quotes in printf.
  • At the end of main(), return 0; is used to indicate successful program execution, with 0 typically indicating success.

When you run this program, you'll see the output displayed in your console or terminal: 


Hello, World!
My age is 25 years old.
The value of pi is approximately 3.14
My grade is A
My name is John

You can use printf to format and display a wide range of data types and text in your C programs, making it a powerful tool for communicating information to users or for debugging purposes.

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