Trying to understand where the else is to the if statement in the adult part. Is there not one and just closed by the }

Question

int age = 18;
if (age > 14) {
if(age >= 18) {
cout << "Adult";
}
else {
cout << "Teenager";
}
}
else {
if (age > 0) {
cout << "Child";
}
else {
cout << "Something's wrong";
}
}

and why does the program mess up if you put the adult part first?

Answer 1

The block where it calls cout << "Teenager"; is the else block of adult block.

Tips: if you're on the mobile app you can tap to have the cursor near a curly brace and Code Playground will turn the brace color yellow if it is equally paired, and red otherwise.

What do you mean by program mess up?

Answer 2

If you have more than one line of code following an if statement it is recommended that you surround the block with pair of curly braces.

Let's review your code;

// Assuming age = 18
if (age > 18) //false, age=18, not >18
{
//these are not executed however, look above
if (age > 14) //true, 18 is > 14
cout << "teenager"; //then you get this
else
cout << "adult"; //rather than this
}

Answer 3

if you put the
if (age > 18)
if (age > 14)
cout << "teenager";
else {
cout << "adult";

messes up the program where it doesn't make the right choice.