Software Development Forum

Hi! I would like to get an advise about the following question. There is a set of text fields. The task is to generate a new JFrame and align text fields based on the information given, i.e. a row and column of each text field. Let's say there is a …

hello, i'm vasant...recently visited an online tutorial for creating java desktop database application here is the URL [url]http://www.netbeans.org/kb/docs/java/gui-db.html#running-outside-IDE[/url] ... everything works fine...when building and executing the application from within the NetBeans IDE..6.7 but as instructed in that tutorial...when I tried to run the .jar file after exiting the netbeans IDE, …

Hi, Im trying to make a caesar cipher, but a windows error comes up when running. Where have I gone wrong?? Sam [CODE]///////////////////////////////////////////////// /// /// /// NAME: SAM BERWICK /// /// DATE: 18/11/2010 /// /// PROJECT: CAESAR CIPHER /// /// /// //////////////////////////////////////////////// #include <stdio.h> /// Stand In/Output #include <string.h> /// …

Hello, I am having some trouble with getting my menu to respond to a mouse click.I have 2 items on my menu, "New" and "Exit", and they are using the actionlistner like so [CODE] newFromMenu = new JMenuItem("New Screen"); newFromMenu.addActionListener(this); [/CODE] and then my action event [CODE] public void actionPerformed(ActionEvent …

So im putting together a program that decompositions numbers on prefactors. Example: 252=2^2 3^2 7^1 and 1944=2^3 3^5 Put this into tuples: (wont use split, just for example) >>> split(252) [(2, 2), (3, 2), (7, 1)] >>> split(1944) [(2, 3), (3, 5)] This is the code that determines whether a …

hai, friends i have problem in inserting image into mysql database using a small java program.... here is my code for inserting image into database............ [CODE] import java.io.*; import java.sql.*; class ImageUpload { public static void connection() { Connection con=null; Statement st=null; PreparedStatement pst=null; try { Class.forName("com.mysql.jdbc.Driver"); System.out.println("driver is loaded"); …

Hi All, I have a problem with a datagridview (7 columns) of which last 2 columns are combo boxes. The datagrid view was set in design view with column names same as a table called OccRecStaff but without a datasource. Although the datagrid view works perfectly for the first 5 …

I am doing a inventory assignment, I think I have completed the code, but when I try to run it I get <no main classes found> I am using NetBean IDE 6.9.1 It also tells me: Created dir: C:\Users\marilyn\Documents\NetBeansProjects\ClassPublicPayroll\InventoryPart1\dist Not copying the libraries. Building jar: C:\Users\marilyn\Documents\NetBeansProjects\ClassPublicPayroll\InventoryPart1\dist\InventoryPart1.jar To run this application …

I want to make a button in a root window.My question is should i draw it or shoud i make a new window in my root window?

So basically it involves sodding scanf(). [CODE]int NumericalAnswer; int score = 0; main() { printf("Question 1: What's 4 x 3?\n"); scanf("%d\n", &NumericalAnswer); if (NumericalAnswer == 12){ printf("You got it right!"); score += 1; } }[/CODE] Output [ICODE]Question 1: What's 4 x 3? 12 9 You got it right![/ICODE] As you …

program is working fine on YES option but on NO option it does not return ? any one give me hint ?? this.addWindowListener(new WinAdapter(){ public void windowClosing(WindowEvent e){ String cnic1 = (String)cnic.getValue(); String name1 = name.getText(); String fname1 = fname.getText(); String age1 = (String)age.getValue(); String add1 = add.getText(); String pro1 …

Hey guys, I'm trying to code a testing app which will display questions on a JForm for a period of time. I need a way of keeping track of time so I know when the user's time is up. What should I use? So far, I've found these: [B]javax.swing.Timer[/B] [B]java.util.Timer …

i need to move[CODE]if(fright <= 45 && fright >= 35) System.out.println("Pressure is in range"); else System.out.println("Warning: Front right tire pressure is out of range"); [/CODE] to TirePressure but have it still print out right after i imput the tires pressure not after i imput them all and i cant figure …

For a homework assignment I need to make a stoplight cycle from red to green to yellow back to red. I tried using a thread.sleep method when I press a button to cycle through but it only goes to the last sleep & setColor statement. I know this is probably …

Hi! Does anybody know how to group JLabel and JTextField in order to get a single component? Thanks!

Okay so in class my professor was going over this code: [CODE]class BinaryTreeNode<T> { protected T element; protected BinaryTreeNode <T> left, right; BinaryTreeNode (T obj) { element = obj; left = null; right = null; } // constructor BinaryTreeNode public int numChildren() { int children = 0; if (left != …

Hi, I have a C# pdf library called PdfSharp which I use to create PDFs. I have a page (print.aspx) which instantiats the class which creates the pdf in the Page_Load() event handler. for some reason when I am running this through IIS, the process for the app pool (w3wp.exe) …

Howdy Folks, I'm working on a program that does a bit of color-coding in a datagridview. My problem is that when a row is selected, the color-coding goes away since the normal behavior for the datagridview is to change the back-color to blue and fore-color to white. What I want …

Hi, I am using VB 2008 Express to connect to an Access 2007 database. I have a combo box named cboYEARMONTH that is populated by the database. I have this part working great. When the user selects a YEARMONTH with the combo box I want the SelectedIndexChanged event to initiate …

Hi everyone, I hope you can help me. I am using vb.net and trying to delete a row in an access database. Firstly, I find the row and confirm there's record. If there's a record I ask for deletion. I am using the values submitted via a text box. Here …

I have a compilation error using bluej java. Here is the code: [CODE]while input.equals(!"q")[/CODE] This is the error I get: '(' Could you please help me thanks :) If i add to a semicolon to the end like this: [CODE] while input.equals(!"q");[/CODE] I still get the same error.

Need a simple way to play a wav file on my form...HELP!

I wrote a short piece of code to give me a .dat file for use in another program. But i cant figure out what is wrong. I run on a mac, and use Xcode. [CODE]#include <stdio.h> #define ARRAYSIZE 1500 #define BINDATA "file://localhost/Users/Hub/Desktop/231A4binData.dat" int main (void) { int i; double dblData[ARRAYSIZE]; …

Hi there, I tried to to delete sorted number in each rows by reading a text file and write it to another file with a new format: such as readfile1.text contains 1, thoman 2, tom 3, jess87 4, kelly and so on.. I came up with this code and I …

Hi guys, I'm makeing a Homework "tracker", which is basically a day planner. I need help making a settings file for the initial setup. I have a text box, a couple radio buttons, and one "begin" button. I need a way for the program to remember what choices were seleced. …

This is part of my code. I want to declare an array of List, and I want to be able to pass this array to the functions listed below, so that I can do work on the array (i.e. add/delete nodes). But I have problems getting my head around pointers …

I have been able to successfully load another java program (Calculator) within a java program with the following code: [CODE]Calculator.main(null)[/CODE] The program loads successfully but both programs have the code: [CODE]addWindowListener( new WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); } } );[/CODE] So once I close the Calculator program …

how to show data from database to treeview. example: data like this code Menuname l_evel parent M01 Maintenance 2 File M0101 Area 3 M01 M0102 Terms 3 M01 M0103 Category 3 M01 M010401 Rate Maintenance 4 M0104 M0106 Customer 3 M01 M010601 Customer Maintenance 4 M0106 please give code. thx

am using sql 2005 and vb 2008.i need to compare dates and select matching records betweem a selected date range.say records between 11/13/2010 and 11/20/2010.e.thing is working ok except when it comes to selecting dates between 11/1/2010 and 11/9/2010.this is happening because when am retrieving the dates from database,its being …

I'm just trying to make a cash till and something is wrong because when i try to execute it it just freezes. I think something is wrong with my loop, also i don't know how to refresh my sale total when i click clear order. It clears it but when …

Hello all, In lots of applications there are copy,cut,and paste buttons where the user can highlight some text and click "Copy" or "Cut" or "Paste" and then the program would do the corresponding actions. I was just wondering how to code such a button in Visual Basic 2010? Thanks in …

Please any one guide me or give me some hint ... can i run my java application directly from batch file or any other way from which i can directly access GUI of application. Regards,

Hello programmers ! Can anyone tell me - how to delete an initialized reference-type element, which suggest some links? Is there for this in C # the special function? Thank you for your answers))

I have to create the following functions with the code provided: OpenScreen(); MonthlyPayment(???); Amortize(???); AmortizeScreenHeader(???); But I'm kind of confused on whether or not the program will only have functions showing in the main body or will there be more than just the functions? Ex: [CODE]int main { OpenScreen() MonthlyPayment() …

Over the past few days I have been writing a bootloader/kernel in NASM... It loads perfectly fine when I write it to a virtual floppy using PARTCOPY, and then boot to it from Oracle VM VirtualBox. However, when I write it to a physical floppy and try to boot to …

Hello, I need to read from a text file. There are only 2 lines in the text file. And I need to read both, line by line as a string. After reading it, I want to use it (concatenate). For example, each line is represented as string1 and string2. I …

I have to answer with the runtime for Big O for a few examples of C++ code. I'm generally having some trouble grasping the concept of Big O but two particular problems are stumping me: [CODE]cin >> x; double n = example(x); for ( i =0; i << n; i++) …

Hello everyone, I'm new to this website and to prgramming in general. Taking a class and we're starting with python. Doin a programming project in which I need to do Data mining for a company. I'm stuck trying to get the company's monthly average for each month. I can A …

I have started my code to create an application with two combo boxes. One that holds the names of the dormitories and the other holds the meal plans. The user should select a dormitory and a meal plan, and the application should show the total charges for the semester. I …

i have an assignment can somebody help me, [B] Assignment Statement:[/B] Comparing two arrays for equality or matching indexes You are required to write a program which will take input from user in two integer arrays. The program should compare both arrays for checking if both arrays are totally identical …

I have a GUI program that controls all the graphics, etc of the program, while another program has all the calculations the GUI program grabs to show in its program. Well I would like to have another program that uses Frame and implements ActionListener, and launch that program with the …

say i execute an windows api function in my code to allocate memory in the specified process! How do i actually view/know this worked without checking getlasterror() or return codes? is there any other way i can do this in a easier/better manner? maybe runtime with a debugger? if so …

Hi, Can anyone explain in detail what is the difference between int *a and int* a? Is there any difference between them?

Hi again guys, last time I posted a problem I got a lot of help... and here I'm back again with new issue. This is the assignment: [QUOTE] Contains a function called sumN() which takes an int n as an argument and returns an int which is the sum of …

Can anybody tell me why I'm not getting checkboxes? Sometimes I can get one, but never the three I need. [CODE]public class SwingLab implements ActionListener { // instance variables - this instance will get reader's name private Scanner reader;//name from user private Random random; private ArrayList<String> name;//construct a responder, declare …

I am trying to save a listview item and 5 subitems to a txt file, I have tried one solution that was posted on here but i could not manipulate the code for all of my sub items can someone please help me out.

why variable can't add number as suffix like: [CODE] int 3a[/CODE]

Hi folks I know this particular program has been posted in many other forums but it all involves many different things that I have no learned yet so I really can't use any of them.....plus it would make me look stupid to turn in something that I copied that includes …

Hello, I have a program that is like a ftp server - it sends and receives files over unix sockets. It works fine when I transfer text files, but as soon as I want to receive binary files, it's not working properly. Files are transferred correctly, I can verify that …

Greetings, I'm working my way through Michael Dawson's Python Programming for the Absolute Beginner book. At the end of chapter 4: "for Loops, Strings and Tuples", there is a challenge that asks so "improve Word Jumble so that each word is paired with a hint. The player should be able …