Multiple Nested If Statements?

How about this modified arrangement? Wouldn't this work as well.

 if (1 == a) {
     
        if (2 ==b)
        {
        // Red
        }
     
        else if (2 ==c)
        {
        // Green
        }
   
        else if (2 ==d)  
        {
        // Yellow
        }
   
        else  
        {
        // Blue
     }
 
     }

For argument sake here is a scenario with the above code:

If 1==a is true and 2==d is true, Yellow would happen and the rest of the 'if' conditions would be ignored.

If 1==a is true but none of the other 'if' conditions are true Blue would happen.

But if 1==a is false then Update will not bother checking the rest of the 'if' conditions.

Are the above senarios correct?

The solution you gave will match with the behaviour you are trying to achieve ;)

The new example is not entirely correct

If 1==a is true and 2==d is true, Yellow would happen and the rest of the 'if' conditions would be ignored.

this is only the case if 2==b and 2==c are not true.

In the example you are describing you seem to have 4 independent int variables whose values are not connected to each other in any way and the way you use them indicates they have some kind of order of priority. (a is the most important one deter$$anonymous$$ing if anything will be done, b is the second in order and if it equals 2, the other conditions don't matter) If this sounds wrong, you would probably be better off rethinking the type and setup of of the variables you are comparing in your IFs. (what i'm getting at is whether b, c and d can all be 2 at the same time, or is that a situation that wouldn't make sense)

I wonder if you could give a real world example of what kind of situation we are dealing with here ? Right now you only check for values of 1 and 2 but if you have more values to check in the future and need to check for different combinations, you'll end up with an else-if that grows exponentially every time a new value is added.

Otherwise, to clarify your doubts about how ifs work: the ELSE of an IF will never happen if the IF happened, and

 if (something)
 {
     // do a
 }
 else if (somethingElse)
 {
     // do b
 }

is logically exactly the same as

 if (something)
 {
     // do a
 }
 else
 {
     if (somethingElse)
     {
         // do b
     }
 }

Those are pretty much the only two rules you need to know about the execution order/rules

Also, it's small potatoes but the syntax in your "if"s is what is known as "Yoda conditions"

i.e. it's easier to read the conditions when they are written as you would say them out loud "If you have red hair, you're a redhead" ins$$anonymous$$d of "If red is the colour of hair you have, you're a redhead"

Thank you for your explanation. The first 'if' is the most important. The rest of the 'if' statements are equel. I thought it would be good to set it up this way so Update is not checking all of the 'if' statements unnecessarily.

Besides the first 'if' statement only one of the nested 'if' statements will be true one at a time.