Software Development Forum

Hi everyone, I'm a moderate-level C++ programmer who is a little rusty at the moment. I've got an object question which is driving me nuts. I'm sure this is a C++ 101 level question, but for the life of me, I can't recall the solution. Basically, I've got one object …

Im coding my first Java applet for a University project and im having issues. Im in the process of coding a search and information function. When the user clicks anywhere in the applet a black circle appears under the cursor, when they then press the information button, information about that …

hi every 1. i am trying to make a customer registration form. On the form i want to display the employee ID or Employee name who is servring or registring the customer. In short the employee who is logged in the system ,his Name or id should appear in the …

I have to do a program in which I create two NumericUpDown controls and the user will input a minimum value in one and a maximum value in the other. Then, when the user hits the calculate button, it should show a Message Box containing all even numbers between the …

Hello, Unforunatly had to replace my hard drive on my laptop so having to start from scratch, i already had eclipse installed, so when i went to reinstall, downloaded JRE and JDK and 32bit eclipse (my machine is 32bit vista) but i get the error message [I]"A java Runtime Environment …

Hello! I would like to ask for tips on how to handle database concurrency in a client server application in c#. I am using SQL Server 2008 r2 as my server. I have minimum to zero ideas on how to handle such and would really appreciate any help that you …

[CODE]insert into po_detail (item_code,qty,item_rate,item_tax) select a.item_code,qty,item_rate,item_tax from mr_detail a,mr_head b where a.mr_no = " & combo_mr_no.Text & " and a.mr_no=b.mr_no""[/CODE] what's the error in the above code ?

'i am trying to get f_name + m_name + l_name three diferent columns combined from data grid view on cell content click into combobox. [CODE] Private Sub bugdgv_CellContentDoubleClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles bugdgv.CellContentDoubleClick Dim row As Integer = bugdgv.CurrentCell.RowIndex frmbug.bugcmbdeliver.Items.Clear() Try obcon.cmd.CommandText = "select d.del_name from …

Sorry to be a major pain in the ass. Im new to java and trying to figure out what to put in the path under Enviromental Variables. Heres the location of my javac. C:\Program Files\Java\jdk1.7.0_03\bin What would i write exactly in the Path location? Regards, Matthew ;)

I want to write this function integerPower(base, exponent) that return the value of base^[I]exponent[/I] For instance integerPower(3, 4) = 3*3*3*3 The function has two parameters my question is how can I use the for loop to control the calculation? It's not that hard to use the for loop when the …

Hello community members!! I have the following question: Is it possible to go through all the buttons in a form using any kind of iteration? I found that i can use this: [CODE]int x = 0; foreach (Control control in this.Controls) { if (control is Button) { if (control.Text == …

so this is what the output should be: A b C d E f G h I j K l M n O p Q r S t U v W x Y z heres what ive done so far class za { public static void main(String[]args) { String x="abcdefghijklmnopqrstuvwxyz"; …

Hey can someone help me with my java program you have to A-Z to Z-A here s what i ve done so far: class az { public static void main(String[]args)throws Exception { String x="abcdefghijklmnopqrstuvwxyz"; int ctr; for(ctr=1;ctr<=26;ctr++) { char z=x.charAt(26); System.out.print(z); } } }

My .Net Code [code=c] # connDO.Open(); # SqlCommand comm = new SqlCommand("DOrders.dbo.p_Update", connDO); # comm.CommandType = CommandType.StoredProcedure; # daDirectOrders.UpdateCommand = comm; # # comm.Parameters.Add("@UOrderNumber", SqlDbType.Int, 32, uOrderNumber.ColumnName); # comm.Parameters.Add("@ConfirmationCode", SqlDbType.VarChar, 50, confirmationCode.ColumnName); # comm.Parameters["@ConfirmationCode"].SourceVersion = DataRowVersion.Original; # comm.Parameters.Add("@Carrier", SqlDbType.VarChar, 50, doCarrier.ColumnName); # comm.Parameters.Add("@Tracking", SqlDbType.VarChar, 50, doTracking.ColumnName); # comm.Parameters.Add("@OrderID", SqlDbType.Int, 32, …

Hey guys, I have the idea of creating a custom Java terminal, I know what I need to do for commands, etc, but I have no idea on how to style it like someone would with a UNIX terminal/Windows Command Prompt, or prompt it so that whenever a new line …

I have a simple query, I am using code for "QUEUE IMPLEMENTATION USING SINGLE LINKED LIST" [url]http://ds4beginners.wordpress.com/2006/12/17/queue-implementation-using-single-linked-list/[/url] for my program but having an issue if you pleas help me. [CODE]public class queue { gcroot<message^> msg; queue* next; public: queue(); queue* enqueue(queue*,message^); queue* dequeue(queue*); void queue_display(queue*); void setbinding(String^); String^ getbinding(void); }object, …

I saw the movie from the link[URL="http://channel9.msdn.com/Events/GoingNative/GoingNative-2012/Keynote-Bjarne-Stroustrup-Cpp11-Style"]http://channel9.msdn.com/Events/GoingNative/GoingNative-2012/Keynote-Bjarne-Stroustrup-Cpp11-Style[/URL] Could I find something like std::async from boost?Thanks a lot

Hello guys i'm getting a massive memory leak which over period of 1min its increase alot and always increases. How to i prevent the memory stacking? I looked all around the internet as im not just posting coz im lazy, i cant find a solution for my code. [CODE] Private …

I can't seem to figure this out- I have a single text box that has text in it. When I put the mouse in it and click it, I need the text to clear so new text can go in. Does anyone have a sample? TIA

Recently I made a little program that could open files/exes/links. (facebook, vs 2012, ect ect) But it was in the command prompt. Worked perfect. I decided to make a forms application to do just the same, except through buttons instead of user input. But I keep running across this problem... …

Hello, This isn't the typical "I wrote a heap sort that doesn't work, help me please" thread, instead, I'm one step before that. I'd really like to [B]understand[/B] the innards of a heap sort before I attempt to write one. I'd like to give it a go from scratch, or …

Hello, So I've got trouble with a program I'm working on. The program is supposed to register studends and teachers to a register, and when I close it, I want to save all data with DataInputStream/DataOutputStream. So when I open the program, I want to see what I've registered. It's …

I want to store an "Intptr" type value in a file and later retrieve it to pass in a function... Can any one please guide , how this can be done?? The value retrieved by the file is of type string... Please guide how can I manage it...

hey, today my teacher told us to use pipe and fork to write a program without teaching us anyway... if any would recommend some good tutorials would be great~!! and what does fork a child mean really mean(example would be great), and how write to a pipe? everything is done …

Hi, Can anyone go through my code to brush it up?I got the correct output,printed below, but i need some polishing of the below loop assignment. 1.Should i be using 2 while loops? 2.Regarding the [B]output[/B]-How can i align the verticle columns and the output neatly. [ICODE]public class MK{ public …

Hi! I was wondering if there is a way to mock Date and Calendar objects for testing purposes. In other words I want to programatically be able to change what new Date() and new Calendar() etc. returns independent of the system date. Something like setting the date for the jvm …

So i dont know why i am getting this error, here are my 3 classes plus the tester edit: I get the null exception after i run the program, --------------------Configuration: <Default>-------------------- Exception in thread "main" java.lang.NullPointerException at University.offerCourse(University.java:35) at StudentCourseTestProgram.main(StudentCourseTestProgram.java:53) Process completed. [CODE]import java.util.*; public class Student { private String …

Hello everyone, i am a current PHP programmer. I am wanting to start C++, is there any good websites i could start to learn? Or is there any tips for programming with C++? Also what is C++, what is it used fore etc.. Thanks, Marais

By running following code and I got following output: At begining of default constructor, theApplet.isDisplayable()=false Start Init here... At begining of init(), theApplet.isDisplayable()=true At begining of constructor, theApplet.isDisplayable()=false End Init... Two questions: 1. Does anybody know why isDisplayable() is changed without do anything on it? 2. Why does the JApplet …

I want to create and write to file on a machine which is connected to my network... The code is: logfile = new StreamWriter("\\\\192.168.15.237\\C\\AdminTrace\\" + " " + DateTime.Now.ToShortDateString().ToString().Replace("/", "-") + ".txt", true); the IP address corresponds to the machine on which i need to create the file... and the …

I have two different forms. one has a listbox and the other has a masked textbox. the masked textbox is used as a login and i would like the masked textbox to be checked against the listbox items to be able to "gain access" and login Any ideas?

Hello, I recently turned in this assignment and I didn't received full credit. He wrote "It could be better." I'm not sure what to change. Here's the assignment: Write your own driver for a stack class. Instantiate one stack container object. Your driver generate random strings (uppercase letters) to push …

Not sure if it is possible but is there a way to multiply,add,or subtract values in a tuple? Say for example I have: [CODE] a=raw_input("enter 2 numbers separated by a /: ") #5/2 entered b=a.split("/") c=a[0]+a[1] print c [/CODE] The value comes out to 52 which is obviously wrong. Is …

Hello How do i reset 2 textbox text of out four textbox at random avoiding a textbox whose text = 'A' for clarification. i have Textbox1.text = "B" Textbox2.text = "C" Textbox3.text = "A" Textbox4.text = "D" how do i set an empty value "" to any two textbox at …

I'm new to Visual Basic and I am trying to set up a currency converter. I have converted a currency to UK Sterling on the first form and on the second form I want to have the same label with the same amount of UK Sterling as on the first …

Can anyone help me with my homework? Create a Java class named ArrayTest with a method called arrayCombiner that creates three arrays of size 10. The first array should contain the values 1, 3, 5, 7, 9, 11, 13, 15, 17, and 19. The second array should contain the values …

What is the best way to change the following program into functions? Can someone show me as a good programming style? [CODE] #include <iostream> #include <string> #include <ctime> using namespace std; // Variables char R, playing, again; int roll, roll1, roll2, roll3, round, money, wager, win, loss, initial; string name; …

So I'm fairly sure I have everything in the correct order, it compiles correctly, but when I try to run I just crash after the first Employee ID input. I've tried all i can think and have searched the web yet can't figure out why it crashes. [CODE] #include <stdio.h> …

Hi all. I am having trouble with one of midterm practice problem questions again. I need to be able to get the First, Middle, and Last Name using the count function. However, my professor wants us to be using a name with more than one middle name, and I am …

im working on this piece of code and for sum reason i cannot understand why i keep getting this message can you please advise me thanks in advance [CODE] 'sql statements strsql = "insert into c_security_user (user_name, user_pwd,) values ('" & txtuser.Text & "','" & txtpass.Text & "')" Dim acscmd …

Public Class Projectile_Motion 02 Dim initialHeight As Double ' Holds beginning height 03 Dim initialVelocity As Double ' holds velocity 04 Dim time As Double ' holds time 05 Dim heightVal As Double ' holds height at different intrvals in time 06 07 Private Sub btnmaxheight_click(ByVal sender As System.Object, ByVal …

Hi... Am stuck with a problem.....my question is how do i iterate a control for eg(a textbox) in runtime....let me make it clear if user enter value as "2" and clicks a button it has to iterate two texboxes as output. I have done in my way but then it …

header1.h [CODE] #include <iostream> #include <string> #include <cmath> #include <math.h> #include <algorithm> #include <Windows.h> #include <conio.h> using namespace std; int gotoxy_object(int x, int y) // your object { HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE); COORD point; point.X = x-1; point.Y = y-1; SetConsoleCursorPosition(hConsole, point); return SetConsoleCursorPosition(hConsole, point); } int gotoxy1(int x, int …

I'm trying to get a user to input a char and an int to create a box visual using that int. I tried to use Character.parseChar, and realized that wasn't possible. How can I get user input of a char value? Below is my code. [CODE] import java.io.*; public class …

Hi, [code] check_time() { fileName=$myFileName newTime=$line newtimeaccess="date --date \"$newTime 6 hour\" '+%Y-%m-%d %H:%M:%S'" newtimeaccess=`echo $newtimeaccess | sh` strnewtime=$(date -d "$newtimeaccess" +%s) systime=$(date +%s) if [ $systime -le $strnewtime ] then return "$fileName__0"; else return "$fileName__1"; fi } value=`check_time "$myFileName $line"` ##$myFileName -- file name and $line -- time of file …

import java.awt.*; import javax.swing.*; public class RandomCircles extends Canvas{ private static int delay; private static int numCircles; private static int frameSize; public static Graphics g; public void paint(Graphics g){ } public static void main(String args[]){ frameSize = 800; numCircles = 1; delay = 5; RandomCircles circles = new RandomCircles(); JFrame …

i am working on a program to find the factorial of a number of any length. i have used an integer array to store the digits of the result. the problem is that i am unable to store more than 32000 digits in the array. if i give a larger …

i have a list box and a button. i would like when the button is clicked the selected item in the list box is deleted. any ideas?

I have a form with a text box and a form with a list box. I would like to be able to push a button on the form with the text box and have it be added to a list box. any help?

I have two combobox. I want to transfer all elements from combo1 to combo2 but with a filter only those item from combo1 will go to combo2 which are not in combo2. For example Combo1 ________ This Is Help But Not Combo2 _______ Is But And Quick So after clicking …