Android Question If versus Case

[An Schi]

I cannot see a real difference between If and Case.

When should i use if and when case?

Thx

 

[lemonisdead]

My 50cts (others would have better replies) :

• it is by design quicker and clearer to use a "SELECT CASE" when you have many value's cases to test
• it is much simpler to use a "IF" when you have many values to test in the same condition
• if I remember correctly, "IF" should be able to make short-circuit (with logical operators)

 

[killiak]

SELECT-CASE = IF-ELSEIF-...-(FALSE)EXIT

Number=Rnd(1,3)

Select case Number
Case 1 Msgbox "Hit 1"
Case 2 Msgbox "Hit 2"
Case 3 Msgbox "Hit 3"
case else Msgbox "No way!"
end select

if number = 1 then
    msgbox "hit 1"
else if number=2 then
    msgbox "hit 2"
else if number=3 then
     msgbox "hit 3"
else
    msgbox "no way!"
end if

Same Results... 2 ways... IF alone (Without ElseIf) is more like a 1-0 or a OFF-ON Situation... Those 3 are "conditional statements" IF for 2 Values, ELSEIF or CASE for more.

But i think that ELSE IF is more process consuming right?

 

[Cableguy]

If I remember correctly, IF/THEN blocks take more time to execute than a Select/Case, However, the order in wich the cases are presented does matter and may influence the flow in an unexpected way.

 

[An Schi]

However, the order in wich the cases are presented does matter and may influence the flow in an unexpected way.

Could you please give a small example of a bad order?

 

[TomA]

Also, for clarity of code, if there are many values to be checked, the code for CASE is often much clearer to read.