can i make a if else statment?

Answer 1

No you cant place 2"if" with codes for both of them individually one below the other. But what you can do :
if (Requirement)
{
Code for failing requirement1
}
else
{
if (Requirement2)
{
Code for failing requirement2
}
Code for passing both
};

OR

Check part3 of this lesson.

Answer 2

Yes
If (expression) { code } else { code }

Answer 3

no i mean if () if else() else()

Answer 4

May be:
if (expression) { code } else if (expression) { code } else { code }
Basically you just replace else-code by another if statement.

Answer 5

thx

Answer 6

why not :)