See if this is useful: http://geosoft.no/development/javastyle.html Take care, Sina -----Original Message----- From: programmingblind-bounce@xxxxxxxxxxxxx [mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Jared Wright Sent: Wednesday, March 12, 2008 5:33 PM To: programmingblind@xxxxxxxxxxxxx Subject: Re: (Java) Dealing With a Rogue Null Pointer Exception at Runtime Hi Sina, Duely noted on your two points, and I'll get on the Googling in the hopes of finding something too. I'm sure it'll take some time to break old habits, but I appreciate the feedback. Thanks for the heads up. Jared Sina Bahram wrote: > Really quick: The two standard rules of thumb are ... capitolize > every word in all classes and interfaces, and capitolize only every > word past the first one in all object names, method names, and so on. > > I'll look for a java style guideline, but I'm sure this is easily > googleable. > > Take care, > Sina > > > -----Original Message----- > From: programmingblind-bounce@xxxxxxxxxxxxx > [mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Jared > Wright > Sent: Wednesday, March 12, 2008 3:54 PM > To: programmingblind@xxxxxxxxxxxxx > Subject: Re: (Java) Dealing With a Rogue Null Pointer Exception at > Runtime > > Hi Sina, Your point is taken. I confess it's not the biggest thing I'm > worrying about right now, but if you could point me towards any > primers on elements of style for OOP or have any individual tips you > feel would be appropriate, I'll certainly take a look at them and try > and modify my coding practices accordingly. I am, as of now, > exclusively a speech user when programming, and I bet there's plenty of things like this I do "incorrectly" > as a byproduct of the speech medium. > > Best, > JW > > Sina Bahram wrote: > >> He does ... they are of type room. Why room is not capitilized , >> since it >> > is > >> a class, I think is a further major big deal ; however. >> >> Take care, >> Sina >> >> -----Original Message----- >> From: programmingblind-bounce@xxxxxxxxxxxxx >> [mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Michael >> Malver >> Sent: Tuesday, March 11, 2008 6:19 PM >> To: programmingblind@xxxxxxxxxxxxx >> Subject: RE: (Java) Dealing With a Rogue Null Pointer Exception at >> Runtime >> >> Look up the proper declaration for arrays. I think you have to >> explicitly state the object type that is going to go in each element. >> I haven't had >> > to > >> declare an array in quite some time, so I may be wrong about this. >> >> -----Original Message----- >> From: programmingblind-bounce@xxxxxxxxxxxxx >> [mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Jared >> Wright >> Sent: Tuesday, March 11, 2008 3:20 AM >> To: programmingblind@xxxxxxxxxxxxx >> Subject: (Java) Dealing With a Rogue Null Pointer Exception at >> Runtime >> >> Hi all, The following constructor keeps giving me a null pointer >> exception if called at runtime. I guess the easiest place to start is >> with a code exerpt. The context is that this class, cave, is made up >> of an array of rooms. Each room has a number, three adjacent rooms, a description, etc. >> > It > >> also tracks what the current room is, per the user's direction in the >> > larger > >> scope of the program. The constructor gets its info from a text file, >> and the amount of rooms in the cave could vary based on this text >> file's contents. I think it is this flexible length of the array of >> rooms for >> > each > >> cave object that's the trouble spot, but beyond that I am admittedly >> > stuck. > >> Note that TextReader serves much as the Scanner class would, this one >> just has a couple of extra quirks that I like, thus I'm using it instead. >> >> public class cave { >> private int current; private int numrooms; // Variables for the >> current >> > room > >> the user is in and the number of rooms in the cave. >> private room myroom[]; // The array of room objects for the cave. >> public cave(String filename) throws IOException { >> current = 1; >> TextReader file = new TextReader(new >> FileInputStream(filename)); >> > // > >> numrooms=file.readInt(); // Reads in the first integer of the >> > file, > >> which is the number of rooms the cave must hold. >> myroom = new room[numrooms-1]; // Attempt to populate the >> myroom array with the appropriate number of rooms. This is the line >> the exception actually references, along with the line that called >> the constructor (from another file). >> } >> >> The constructor actually goes on to fill the room objects with more >> > specific > >> data (room number, description, etc.). Is there a better way to go >> about this? Will I have to somehow explicitly define the array >> length, or is >> > there > >> a way that the constructor can make the array the appropriate size >> based >> > on > >> the data in the file? Might I be looking in the wrong place for the >> source of this error? >> >> More code available on request. I didn't want the snipet to get too big. >> I hope I've made things clear, and thanks for any guidance, everyone. >> >> Jared >> >> >> __________ >> View the list's information and change your settings at >> //www.freelists.org/list/programmingblind >> >> >> __________ >> View the list's information and change your settings at >> //www.freelists.org/list/programmingblind >> >> __________ >> View the list's information and change your settings at >> //www.freelists.org/list/programmingblind >> >> >> >> > > __________ > View the list's information and change your settings at > //www.freelists.org/list/programmingblind > > __________ > View the list's information and change your settings at > //www.freelists.org/list/programmingblind > > > __________ View the list's information and change your settings at //www.freelists.org/list/programmingblind __________ View the list's information and change your settings at //www.freelists.org/list/programmingblind