Question

In c++, can someone explain and provide an example of a nested if and else, using the for loop? Thank you very much

Answer 1

An example of a nested if and else, using the for loop :

Syntax :

//for loop

for(initialization; condition; increment/decrement)

{

//nested if ..else

if(condition)

{

true statement;

}

else if(condition)

{

true statement;

}

.

.

.

else

{

false statement

}

}

Here, I am going to explain nested if-else using for loop with one simple example where I am going to accept multiple numbers using for loop (assume 10 numbers) so here nested if-else will check whether the entered number is positive, negative or zero.

If the entered number is greater than 0 then it's a positive number

If the entered number is less than 0 then it's a negative number

If the entered number is equal to 0 then it's a zero number

Program :

#include<iostream>
using namespace std;

int main()
{
int num,i;
for(i=1;i<=10;i++)
{
cout<<"\nEnter a number: ";
cin>>num;
if(num>0)
{
cout<<num <<" is a Positive number."<<endl;
}
else if(num<0)
{
cout<<num <<" is a Negative number."<<endl;
}
else
{
cout<<num <<" is a Zero number."<<endl;
}
}
return 0;
}

Output: