> Line 24 of the main code gives me cannot convert to char to string error

it's because charAt() returns a character and you are trying to assign it to a string (which is what the error says)

if you want a single character string replace charAt with subString(a, b);

http://docs.oracle.com/javase/1.4.2/docs/api/java/lang/String.html#substring%28int,%20int%29




i think the other error is fallout from this and will go away with the above change.

(or what dr.mo says 8)

Haha Thanks Guys, much appreciated.

I've changed my code slightly to incorporate a triangle class instead of a square class, but i'm receiving the following error:

Sorry forgot to mention line 19 of my triangle class gives the error message.

the simple answer: you get the error because the function you are trying to call doesn't exist. i don't see any triangle function in the code you posted! you have a Triangle constructor but that only takes three ints and if you wanted to make a new triangle inside it's own draw function (why?) then you'd need to do it like this  Triangle triangle = new Triangle(a,b,c);