Software Development Forum

I have no idea whats wrong here, i am fairly new to java.. heres my code.... [CODE] private JPanel pnlLogin, pnlFinalLogin,pnlUser, pnlPass = new JPanel(new BorderLayout()); btnLogin = new JButton("Login"); lblUser = new JLabel("Username:"); lblPass = new JLabel("Password:"); pnlUser.add(lblUser, BorderLayout.WEST); //pnlUser.add(txtUser); pnlPass.add(lblPass, BorderLayout.WEST); //pnlPass.add(txtPass); pnlLogin.add(pnlUser, BorderLayout.WEST); pnlLogin.add(pnlPass, BorderLayout.CENTER); pnlLogin.add(btnLogin, BorderLayout.EAST); …

i'm newby to C++. Small code as follows: [code] int main(int argc, char* argv[]) { cout << "function main() .." << '\n'; char ch1; int int1; cin >> ch1; cin >> int1; cout << ch1 << '\n'; cout << int1 << '\n'; return 0; } [/code] when i run the …

I have an excel spreadsheet that has 2 used columns. Using Python I have to read the data in those to columns. So far I have a code that lists the item in column A and B on Python GUI. Once that is done I have to write code so …

Hi I have a double *ptr which I use as an array. I am trying to send the address of the ptr to another sub processor. But I can only send 32 bits to the other processor.So its giving me an error makes pointer of type integer without a cast. …

Hi, I'm trying to write a program that will continuously pull up a text file, search it for anything new, and create/change a different text file if there are ever any differences in the "myfile.txt" that is being constantly searched. The problem is, when I run my code, it consumes …

If a user enters [CODE]0 0 0 0 0 0 0 0 1 1 1 0 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 0 0 0 0 0[/CODE] how do I read it in as [CODE] 00000000111010000000011111100000[/CODE]

I have an eclipse application from which i trigger an Swing widget.On click of a button on the SWT composite a window pops out which contains the Swing Table. Now i want a button on this Swing page to show up an eclipse workbench window. Any idea on how I …

been doing reiew questions to prepare for a c++ test, and was hoping someone could help me out by looking over the ansewers i have so far. what i have is in red. thank you very much :) -- Which of the following operations has the highest precedence? a. Postincrement. …

Hello, I'm new to programming forums so go easy on me :) I'm working on an assignment for school. I have to read a quiz.dat file which cotains info in the format of: TTTTTFFFFFTTTTT TTTTTFFFFF TTTTJoe Jones TTTTTFFFFFT TTFMary Jane ... ... etc. The first line being the answer key …

Can someone please tell me why I might be getting a access violation when doing the following for a double linked list: [CODE=C++] ~DLList() { while(!isEmpty()) //isEmpty is working.. removeHead(); } bool isEmpty() { if(head == NULL && tail == NULL) return true; else return false; } char * removeHead() …

When I try to run my WordSort class with another class using the code: WordSort ws = new WordSort(sentence); ws.sort(); The program prints out what I want it to in the first method but for the ws.sort() method, the program prints out null. I would like it to print out …

got some noob c++ questions that hope someone can help me with ---The statement while ( --counter >= 1 ) counter % 2 ? cout << "A" : cout << "B"; cannot be rewritten as: a. while ( --counter >= 1 ) if ( counter % 2 ) cout << …

hi there I want to create paragraphs or in other words I want to separate lines whenever I want. for example: car name: bla bla car license plate: bla bla . . . how can use that property of richtextbox in my rezervation program. I have searched through the web …

so i am working on a program that gets input from the user for a triangle and should not take a negative number and display to the user that it is invalid. then needs to input the correct number. the problem is that my try and catch is not display. …

Hi I am trying to get this program to work to insert a node into the list and move the list down so the node will fit. I get the node to be inserted into the right place but the list is copied as such. if 1. joe 2. linda …

ok so i am trying to do a little phone book. i have a class that has information on the individual, the main would read from a file of individuals and ask if the user wants to add or remove , and the last one is array of individuals..here is …

So guys for the sake of simplicity lets say i am developing a huge matrix multiplication program using C and i made a data structure which is able to represent this huge matrix into miniature blocks the down side is that this representation of block takes much more memory than …

Hi guys, uve been workin on a restaurant program and im tryin to write the time to the end of the receipt. so im writing information to a file. only problem is i cannot make my time function return the current time. I've tried everything. can you guys help?? im …

I'm making a game as my project in school. I'm having a problem regarding double buffering, im trying to draw an image (drawImage(,,,,)) into the double buffered image, I can't seem to make it work help please =D [CODE] public void render() { if(doubleBufferImage==null){ doubleBufferImage = createImage(PANEL_WIDTH,PANEL_HEIGHT); // Set Size …

was hoping someone with more experience could look over and tell me if these answers look alright. in red is what i got -- srand: a. Should be called before each call to rand. [COLOR="Red"]b. Should be used instead of rand to generate truly random numbers.[/COLOR] c. Is unnecessary in …

[CODE] private void testFunc() { int[] arrayParam = new int[88]; arrayParam[2] = 67; calledFunc(arrayParam); Console.WriteLine("testFunc Done"); } private void calledFunc(int[] intArray) { Console.WriteLine(intArray[2]); //if new array declared, values not changed in testFunc intArray = new int[66]; intArray[2] = 33; intArray[5] = 55; } [/CODE] If calledFunc simply changes array values, …

hi, here is my code having return method that working correctly when i print it from inside of the method, but if i call from main method its shows only one output instead all results.. [CODE]public class SearchCompare{ .... public String process(){ String showResult=null; ... .. for (String found: names.keySet()) …

To start off, I am absolutely sure this question has been answered before, but I've searched for it all over the internet to no avail, probably because I don't know the term. I've been working with Eclipse C++ IDE on my Ubuntu machine for awhile, and all of my programs …

please tell me where i'm off the window opens but no menu bar. the error says : java:52: '.class' expected menuInput[][] = array [row][col]; thanks hs [CODE] import java.awt.*; import java.awt.event.KeyEvent; import javax.swing.*; public class Driver{ public static void main(String[] args) { TheWindowObject aTestFrame = new TheWindowObject ("test"); } } …

Sir, I am using the following code in my vb.net while using that code it will show me syntax error. [CODE]Private Sub updateinfo() Dim con As OleDbConnection Dim cmd As OleDbCommand Try con = New OleDbConnection(connectionString) cmd = New OleDbCommand("UPDATE [Lani] SET [First Name] = '" & txtfirst.Text & "', …

Will the new WPF 4 support multi-touch development on the HP TouchSmart computers? I know there is HP TouchSmart Developer kit, but it doesn't support the express editions of Visual Studio, and Visual Studio is kind of pricey.

I am trying to read the matrix (please see this link [URL="http://www.clcbio.com/scienceimages/img8.png"]http://www.clcbio.com/scienceimages/img8.png[/URL]. This matrix will be in text based file. How can I read this file and create a matrix and fill it in my code. The other question I have is that the matrix has first row and column …

Hi, I have an IIF function in my textbox expression.This is my code. IIF(IsNothing(Fields!Duration.Value) , "Not released ",Int((Fields!Duration.Value/12)).ToString()+ "Y " +(Int(Fields!Duration.Value) Mod 12).ToString() + "M") But when Duration is null the true expression doesnt work instead it displays "#error".Can anyone help me to fix this? Thanx in Advance

I posted a snippet about using a microcontroller as a mouse, and it works great, but it moves the mouse as a stepper motion. How would I go about making it velocity driven? Like when I tilt the accelerometer further, the faster the mouse moves. I've seen it on youtube, …

I have an int that I need to store as two chars. So is there some way to get the first 8 bits and the second 8 bits and store them as chars. And if so, how would I recombine them later to get a meaningful int value?

hey guys, i have to do this program and i'm having trouble: Write a program that lets the user enter the loan amount and loan period in number of years and displays the monthly and total payments for each interest rate starting from 5% to 8%, with an increment of …

I have a question for entering an atm number in a simulated atm. What happens is when i enter 1 to enter a pin number it fails on me three times. If I hit a 2 it does what it is supposed to. When I enter something other than a …

When I try to compile this: [code=C++] //Player Class Definitions #include <iostream> #include "player.h" using namespace std; player::player() { health = 100; level = 1; potions = 10; enemiesDefeated = 0; } int player::attack(int *enemyHealth) { srand(time(NULL)); int randomNumber = rand() % 100; *enemyHealth = *enemyHealth - randomNumber; } int …

I have the following code: tb_Job_No.Text is a combobox This is the code [code] Public Sub RepCD_process() ssql_Job = "SELECT * FROM Rep_Dist" ssql_Job = ssql_Job + " WHERE (Job_Number = '" & tb_Job_No.Text & "') " Dim Main_Form As New Main_Form With Main_Form .DC_Reps.Open() .DS_RepDist1.Clear() .DA_RepDist.SelectCommand.CommandText = ssql_Job .DA_RepDist.Fill(.DS_RepDist1) …

Hello, What I am trying to do is edit the variable of a class through a separate class function. I have tried to do things like [code=C++] int player::attack(int *enemy) { srand(time(NULL)); int randomNumber = rand() % 100; *consolePlayer.health = *consolePlayer.health - randomNumber; } [/code] and I get the error …

hi below is code it is only a part of my program simplified for understanding the main problem i am facing .................... actually the code runs well but while exiting from main [B]displays Null pointer assignment[/B] . May i please request the forum member to debug the program..... the code …

Hi I have newly installed VB 20008 Express. What extras do I need to have to allow me to create standalone exes? This for giving to fellow model railway club members and not for commercial use. Thanks Davy

delete this, solved, had to do with how a variable was declared

I have three files: main.cpp [CODE]#include "CMain.h" int WINAPI WinMain(HINSTANCE hIn...) { return 0; }[/CODE] CMain.cpp [CODE]#include "CMain.h" using namespace Program; LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) { switch(msg) { case WM_DESTROY: PostQuitMessage(0); break; default: return DefWindowProc(hwnd, msg, wParam, lParam); } return 0; } CMain::CMain(void) { …

Hello, How can i change the root directory to the current working directory.. I need to use some form of an exec call to run a program found in the current working directory but the problem is that the path of that program is required to start with '/'.... my …

Hello I'm creating a game engine. In order to draw everything correctly I need to sort a vector (vector<game_object*>) by each contents z value I miserably failed to do it with std's sort() so Id like to know what's the most efficient way I could sort this vector [If its …

[URL="http://i41.tinypic.com/n2ef5k.jpg"]Screenshot.[/URL] Hello, I have a problem already for like a week and I seriously can't get out of it. Take a look at the screen shot. The server sends a packet to the client to spawn an NPC. If you look to the top commandline-window, the client does recv the …

So I have the following implementation of linked list: [CODE=c] #ifndef LINKED_LIST #define LINKED_LIST struct Student { char* name; char* surrname; char* signin_number; char* grade; char* date; struct Student* next; }; struct Student* begin = NULL; void push_back(struct Student* student) { struct Student* temp = NULL; if(begin == NULL) { …

I want to know what is "Vector for the buckets in hash table". I gathered data and stored into hash table. And I want to know how to convert hash table buckets into Vector. If you guys have source, It would be helpful or theory, also welcomed. Thanks you in …

I just wrote my first program using methods (I am only on chapter 5). I am not sure where I would use javadocs other than the ones that I already have in my code. Can someone help me? [code]/** * @author Brock Shelton * Date: March 15, 2010 * purpose: …

Hello everyone :) My problem is that my input will not be transfered when i build a new Object. To understand my problem i give you first the output: Welcome Hero! Show me your Attributes! Enter your Name: KIKI Enter your Strength: 50 Enter your Health: 60 Enter your Intelligence: …

I'm having troubles understanding global variables in python. I am trying to keep track of when a function gets called and once it does I want it to be unavailable to the user. However for some reason its not working :\ [CODE] psycStat = False def main(): form = cgi.FieldStorage() …

Hey I have a use for working with basic binary search trees but I cant seem to find good examples on the basic operations such as sorting, insert data, delete and search for data. Can someone give some basic examples? Thanks.

#include <iostream> using namespace std; int main() { int list[12] = {8,1,11,4,2,9,10,5,3,12,6,7}; cout<<list; return 0; } I run the above code and get this: 0x22fef0Press any key to continue . . . Please help!!! New with C and new with Dev-C++ which my University wants us to use... Running from …

ok so im doing a project for a class, no body but me is doing c++ for it, im the only one in my school that knows some of it, and heres what i have so far, havnt gotten into too much detail for it because i need to know …