Logical operators are crucial in C programming for making decisions and controlling the flow of your code. In this article, we’ll delve into the basics of C programming’s logical operators: && (logical AND), || (logical OR), and ! (logical NOT). Through real-world examples and output demonstrations, you’ll gain a solid understanding of how to use these operators effectively in your C programs. Logical operators are indispensable tools in C programming, enabling you to make complex decisions and control the flow of your code. In this article, we’ve explored the basic logical operators (&&, ||, and !) with real-world examples and output demonstrations. Armed with this knowledge, you’re well-prepared to write more advanced C programs that involve conditional statements and complex logic.
Logical AND (&&)
The && operator is used to combine two conditions. It returns true if both conditions are true and false otherwise. Let’s illustrate this with an example:
#include <stdio.h>
int main() {
int age = 25;
int isStudent = 1;
if (age >= 18 && isStudent) {
printf("You are eligible for a student discount!\n");
} else {
printf("Sorry, you do not qualify for a student discount.\n");
}
return 0;
}Output:
You are eligible for a student discount!
Logical OR (||)
The || operator is used to combine two conditions. It returns true if at least one of the conditions is true and false if both conditions are false. Here’s an example:
#include <stdio.h>
int main() {
int isWeekend = 0;
int isHoliday = 1;
if (isWeekend || isHoliday) {
printf("It's a great time to relax and enjoy!\n");
} else {
printf("Back to work or school!\n");
}
return 0;
}Output:
It's a great time to relax and enjoy!
Logical NOT (!)
The ! operator is used to negate a condition. It returns true if the condition is false, and vice versa. Let’s see how it works:
#include <stdio.h>
int main() {
int isSunny = 0;
if (!isSunny) {
printf("It's a cloudy day.\n");
} else {
printf("Enjoy the sunny weather!\n");
}
return 0;
}Output:
It's a cloudy day.
