[X] My Assistant

[confusedbycode]

I get the set as real,
I am lost on when to use Case,
or While, or then.
Can anyone help clear my confusion?
Thanks,

[Core]

It really depends on the situation. You should see more information on how those statements are used in different situations and pick the most effective one.

I'm going to give a simple example - I was working on an application in which the user picked either a YES or NO response. Therefore, I needed somehow to check which one was selected. I used the IF statement, since there are only two choices. But if I would have to choose between YES, NO, I Don't Know and Ignore Question, then I would use Select Case, since there are more verification parameters.

[liyam]

Actually, it depends on preference.

if you can use nested if else statement then go for it. if you think it's easier to use a select statement then go for it.

for looping statements, on using "for each" or "while" has a significant difference,

If you know how many times you needed to loop the statement, then use a for each loop statement. If you want to loop until a certain condition was met then use a while looping statement.



This post has been edited by liyam: 16 Apr, 2009 - 10:55 PM

[confusedbycode]

Thank you all for you help. Your explained it in so much easier to understand terms then what I have been getting from my instructor (figure it out for your self).
Thanks again,

[sudoNut]

As Core was saying it depends what you are doing.

Think as code as an extension of natural language. Say I want to continue eating until full this could be expressed by:

CODE

while(!full){ eatMore() }

Or say I have multiple choices of food

CODE

switch(foodType) {
                      
   case "banana": peel();
                          eat();
                          break();

   case "apple": wash()
                       eat();
                       break();

   default: eat();
               break();

}

These are rather crude examples but you get the picture. Have a look at some Java control examples at http://math.hws.edu/javanotes/c3/s3.html

BTW your instructor is not doing his job by the sounds of it! Complain if he continues to fob you off like that

This post has been edited by sudoNut: 19 Apr, 2009 - 06:51 AM