IntClass

I am struggling with IntClass, CharClass etc. How do you import these and from where? I read appendix D in the textbook but it still doesn't make much sense. I can't pass objects of these types as parameters without these classes.

Hi Shellgracie,

Have you managed to get around your little problem as yet. I know its a bit late, but I've only just joined this forum.

psivius

Nope, still haven't solved my problem. Can you help?

Hi Shellgracie,

Well I know it's too late wrt to the second assignment (that I eventually received only last Thursday) but I've managed to solve the problem.

I spent/wasted a lot of time with Exercise 14. The answer was pretty straight forward when working it out on paper as only the getNum and setNum methods were being called in the program BUT, when typing up this program in jGRASP I ran into the same problem you did.

After losing a lot of hair I eventually figured that the J2SDK probably does not have these classes builtin and that we are expected to actually create them ourselves using the information in Appendix D. Essentially the class file for IntClass has to be present in the folder in which you are working. In order to create the class file you have to type out the IntClass class definition in Appendix D save the file as IntClass.java and compile the file. The class file for IntClass will now be created and when you compile your program using the IntClass the symbol will now be recognised. Shew! Not really a big deal but by reading the textbook one assumes that this is a class native to Java. Also I'm sure that a package for these classes can be created but for now the above should suffice.

I have to stress (as I have been doing all day) that I came across absolutely no indication of this whatsoever in the tutorial letter or in the textbook (I stand under correction as I only had a chance to skim over the textbook). Also after finally receiving and reading the tutorial letter I am quite surprised that one of the lectures has still not responded to your question on the forum. The tutorial letter makes it quite clear that the forum is best way to keep in touch with them and that this would be the best place resolve all queries and problems we may experience.

Anyway I'm pretty wasted right about now and I'm about to crash like my last java program so, till next time: happy programming.

psivius
-There are only 10 types of people in the world: Those who understand binary and those who don't-

Thanks. I eventually realised that I had to create the classes myself, although only 2 days before DUE date. Had no time to change them. I almost finished this assignment. Thanks for the help.