C Program to Check Whether a Number is Positive or Negative
In this example, you will learn to check whether a number (entered by the user) is negative or positive.
This program takes a number from the user and checks whether that number is either positive or negative or zero.
Example #1: Check if a Number is Positive or Negative Using if...else
#include <stdio.h>
#include <conio.h>
int main()
{
int number;
printf("Enter a number: ");
scanf("%d", &number);
// true if number is less than 0
if (number < 0)
printf("You entered a negative number.");
// true if number is greater than 0
else if ( number > 0)
printf("You entered a positive number.");
// if both test expression is evaluated to false
else
printf("You entered 0");
getch();
}
//https://www.coolprogramming4u.blogspot.com
Output 1
Enter a number: 12.3
You entered a positive number.
Output 2
Enter a number: 0
You entered 0.
Output 3
Enter a number: -5
You entered a negative number.
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