Basically, if else work as decision making statement in all programming language.
Syntax-
if(condition){
body
}
else{
body
}
Now we can check number is positive or not using if else
Program:
#include < iostream>
using namespace std;
class myclass
{
public:
// check number is positive or negative
int check(int a)
{
if(a>0)
cout<<"Number is positive";
else
cout<<"Number is negative";
}
};
int main()
{
int n;
cout<<"Enter any number";
cin>>n;
myclass obj;
obj.check(n);
return 0;
}
Enter any number
-19
Number is negative
Enter any number
34
Number is positive