ToString and StreamTokenizer - general use questions
Hello everyone.
I am currently taking a class in Java at a NYC school, and got into an argument with the teacher regarding the proper use of the toString method and the SteamTokenizer class. He claims the following:
1. toString() methods are primarily for debugging - i.e., I defined this method in a class I created in order to better represent the class' state visually - and he marked that as wrong - since I was not using the method 'properly'.
2. I was using the StreamTokenizer class in order to read in user input from the terminal - and only perform something if values entered were numbers. He claims that my use of the class is inappropriate - since it "doesn't do what I think it does" - whatever that means.
I just wanted to see what people's feelings were on the proper use of the toString method and the StreamTokenizer class (in regards to reading user input). Thanks!
also on your last remark,
if the example you use the toString-method insteadof
the getAccountNumber-method: how is a developer to
know what the toString-method will give; that'swhat
I mean with vague. 'getAccountNumber' does notleave
much roam for imagination.Yes, but if you give the developer an API for your
program (if he can't see the code himself), the API
will (should!) tell him what toString will return.Maybe you work in a project where developers actually have time to do this. I agree that they should and that the API should always be up-to-date but I've never encountered a project where this is actually done.
Actually, I don't really understand your problem with this statement. Don't you agree that a method getAccountNumber should be created and that this should not only be returned by the toString-method. If you want your toString to return this value you can allways do this, for debugging purposes.
Another important argument; in these cases you do not excpect the toString to return important information that is called from other methods. What if another developer needs to debug and changes the debug-information? I know that where I work it's the first developer who would get blamed for this.
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