Well anyone?

It's not that I don't know how to write classes but how to use them.

I can have data classes for each table with setters and getters but when you run a SQL query you make the connection and...

I need some advice on the way I'm should be doing something like this...

My main GUI is composed of a JTable and query box for custom SQL user queries.
I execute a SQL query, from the ResultSet,...

Thanks guys useful info, will put it to use after I read it couple of times...
cheers

I've know that a pointer to some dynamic memory must be deleted to prevent memory leaks.

Now if say a struct/array or some other data structure, each with its own dynamic memory parts. If that...

Roger that!

Is it safe to compare strings with == operator or is .compare recommended?

One of my teachers said NOT to use the == operator and always use a function when available. The example given was...

I have like 5 classes, 3 of then need around 15 constants the other 2 classes need only 2 of the 15.

I was thinking of having a header file to contain all the constants in header file and just...

I found the strcpy(..) to copy over the const c string from .c_str()... so I've answed my question...

string a = "hello";
char b[20];

Other than a for loop to copy character by character over is there some sort of function to convert strings to non const chars arrays? I don't even know if it...

Other than pointer arithmetics or something I don't know anything else... but the memory thing was what I wanted to know...
cheers

One function is pass by pointer which stores the reference, the other is just pass by a reference... are theses methods equvilent or does one method require more memory than the other?

#include...

I was wondering if it's possible to change or add values to enum types? Such as changing the string "This is a msg" or add additional value to the type test.
May I have some tips?

public...

I see... just read about c-type strings vs c++ strings, now I know why my == didn't work with grabbing and comparing stuff of the commandline that uses char *argv[].
cheers

I'm not quite sure the difference between strcmp and == operator when comparing 2 different strings, I was told to do this but == works as well with less typing.


if ((strcmp (a, b[i]) == 0)) ...

Doh! Ok, then, I'll just increase the size of the array. I was doing somethig similar to below, everything is done but I thought it would be neat idea to increase the array dynamically.

prompt...

I can't figure how to get this going, for every object I create I want to add that to the existing array. I read about arraycopy but I don't know how to increase the existing size of the array and...

import java.util.Scanner;
import java.util.InputMismatchException;
public class test
{
public static void main(String args[])
{
int a[] = new int[10];
int counter = 0;...

I would like to make so that when you have a int and prompting user to enter some number for calculations... if the number entered is larger than a 10digits, my program wouldn't just crash or if the...

I see, so for those scientic calculators in C++ they use other libraries for better precisions instead of the standard one.
Got it, thanks.

I compiled in cygwin so g++. I didn't mean anything wrong with setprecision() but discovered it while playing with it but why ain't the numbers precise? Isn't that very bad for scientific...

Learning about all functions in <iomanip> and was testing out setprecision() and found that something weird is going on...? I did try to do a search on setprecision() limitatations or similar...

istringstream convert(line);
convert >> num;
if (!convert)

What would be the pseudocode for the 3 lines above, well I want to understand it as well.

After some reading I found that...

Thank you joeprogrammer (http://www.daniweb.com/techtalkforums/member73097.html)!
Mashed my keyboard... my little calcuation program didn't crash. Perfect!

I do have a few question about...

That's what happens with my program, when you enter a string when cin type is int, it enters some infinity loop in my while loop. I get that part now, so how do I use the if..else to test for the...

I'm making this calculator thing, my knowledge in c++ isn't very deep at all, I don't understand why you need to convert the int to string to test the int and see if it's a string or not? I'm...

Ok, I new to this and haven't been taught exception handling yet but I would like my program to run without crashing when someone mashes the keyboard. I have declared an int x, and I don't want my...