In this program, we will learn how to check if the number is positive or negative using C++ Programming language.
This program asks the user to enter a number, then we will use an if-else statement to check whether the number is positive or negative.
So, without further ado, let’s begin this tutorial.
C++ Program to Check If the Number is Positive or Negative
// C++ Program to Check If the Number is Positive or Negative
#include <iostream>
using namespace std;
int main(){
int num;
// Asking for input
cout << "Enter an integer: ";
cin >> num;
// Checking whether the number is positive or negative
if (num > 0){
cout << num << " is a positive number." << endl;
}
else if (num == 0){
cout << num << " is equal to zero." << endl;
}
else {
cout << num << " is a negative number." << endl;
}
return 0;
}
Output 1
Enter an integer: 12
12 is a positive number.
Output 2
Enter an integer: -6
-6 is a negative number.
Output 3
Enter an integer: 0
0 is equal to zero.
How Does This Program Work ?
int num;
In this program, we have declared an integer data type variable named num.
// Asking for input
cout << "Enter an integer: ";
cin >> num;
Now, the user is asked to enter an integer. This number gets stored in the num named variable.
// Checking whether the number is positive or negative
if (num > 0){
cout << num << " is a positive number." << endl;
}
else if (num == 0){
cout << num << " is equal to zero." << endl;
}
else {
cout << num << " is a negative number." << endl;
}
Now, we check whether the entered number is greater or smaller than zero.
- If num > 0, then the entered number is a positive integer.
- If num = 0, then the entered number is equal to zero.
- Otherwise if num < 0, then the entered number is negative.
Conclusion
I hope after going through this post, you understand how to check if the number is positive or negative using C++ Programming language.
If you have any doubt regarding the program, feel free to contact us in the comment section. We will be delighted to assist you.
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