Software Development Forum

Hi everyone, I have a little problem with my code right now. For a project, we are to create a snack machine with cookies and mints using a GUI. We are given nickels, dimes, and quarters to enter in. The problem is when I enter in 1 nickel and 6 …

Hi, How can i change the bar chart color after I click a button? Here is the senario. I have a bar chart to show line progress. Here is the 3 condition for the bar chart: 1) Before the bar chart reach maximum limit, the color will set to blue. …

Hello all. So I have a little problem with my school project. We are to create a snack machine with cookies and mints and interact with it using a GUI. We click the add Mints or Cookies button to add to the 'Snack Machine' and then click buy to purchase …

I'm kinda stuck with the first part of this assignment. Design and implement a program for a phone book application. Create classes Name, PhoneNumber, and PhoneBook that are employed by the provided phone book program, PhoneBookProgram.cpp. The Name class is where I'm at. Class Name • Represents the name for …

The program works perfectly. But in order for an individual to succeed in computer science, he or she must fiddle around with the program, and come up with other algorithms, such as converting a pre existing one, even it it is more or less efficient. Again the program works perfectly. …

How can I change the color of bar chart based on value in database column? For example, in table "STATUS" in my database, I have 3 type of value. What I want is: 1) If the value = 0, then color will change to blue. 2) If the value = …

I'm taking an Intro to C++ course and I'm having some difficultly with a lab I'm working on. I don't have any code yet. I've been working on my design file but don't know which direction to go in to solve the problem. I want to put the dataSheet into …

Hello! I just started learning C a few weeks ago and I'm having a problem with a program I'm writing The program has to prompt the user for a certain number of values defined as NUM_VALUES, and then calculate the mean and standard deviation of the numbers. Here's what I …

I wrote a short program to factor numbers, and it works in most cases. The problem I am getting is that when I use a very large number I get "Floating point exception: 8." I am assuming that I am trying to divide by 0 on line 43 or 46, …

Hello, I am having some difficulties getting my program to write the contents of an object to a file. First off, I am not sure if I should be writing the contents of the the object (e1, e2, e3) to the file or if I should be writing the contents …

I'm trying to build a tree from a file and it keeps blowing up on me. It doesn't even give an error but it shuts down when I try to run it. I'm not sure what is wrong. I think I have something wrong with my root but I'm really …

I'm given a text document with marks and course codes, and I need to create a function where you input the directory of the file, and the course code. Doing so, the code will return the average mark of all the marks in the text with that course code. Any …

I have a Java application i've written, it's a chess client that i've done as a hobby project, and it has a main applicatoin window and all the windows are contained in that. I've had a number of requests from mac users that they'd like to see it converted to …

I am using the following code on my raspberry pi (with debian as the os), and when i run it, it says: cannot load image C:/root/desktop/Snake.bmp * Traceback (most recent call last): File "/root/game.py", line 25, in <module> background, tmp_rect = load_image('Snake.bmp') File "/root/game.py", line 11, in load_image raise SystemExit, …

Hi everyone I'm new in VBA and I have a problem with my code, if someone can help my I will be grateful. I have this part of code in Excel VBA an work fine Dim NumeroArchivo As Integer Dim conta As Integer Dim ListArchivAbierto As String NumeroArchivo = Workbooks.Count …

Right im tring to figure this out.... using the form load event i have created an array which gets populated with 20 random numbers from 0-9 (numbers do repeat). Based on the users input I am now trying to search my array to findthe first occurrence if any of the …

Hy there. I have some code where I store data for 365 records (for every day in a year) in delphi, some kind of list as far as I understood (a good man!!! Sir Rufo on stackoverflow helped me with that part of code, writing whole example for me! Thanks …

Hi folks, I have been making a marquee scroller that reads the text coming from the right to the left, so setting a JLabel's text using setText() starting with 60 spaces and one character-long substring, to zero spaces and 60 character-long substring. I've noticed that immediately, the jlabel's text starts …

Sub empno() ComboBox2.Items.Clear() sql = "select empno from tbl_empinfo" If rs.State = 1 Then rs.Close() rs.Open(sql, conn) Do While rs.EOF = False ComboBox2.Items.Add(rs(0).Value) rs.MoveNext() Loop End Sub how do i write this for an access connection???

Need help while working with timer.... I am trying to do the database restoring part.... When the user clicks on the restore database button the progress bar shud be shown and as soon as the restoring is completed the progress bar shud stop and display success msg... Right now I …

Actually I'm doing a project to maintain the company info, here i wanted to write a code to check whether the company id already exists or not. that is if the id 123 is already present in the access database then it shuld show the msg that it already exist. …

Hi there, I just wanted to ask how I would go about writing a single function to count the frequency of numbers 0-10 including .5(such as 1.5,2.5) This is what I have done file = open ('grade.txt', 'r') s=file.readline() grade=[] while s[0:3]!="EOF": s=s.replace(' ','') lst=s.split(',') if lst[0][0]!='I': grade.append(float(lst[5])) print(lst) s=file.readline() …

I've been looking for a way to work with polynomials using python, did someone already wrote a code to do that?. Here's what i have until now using dictionaries as polynomials -for example: x^4-6x^2+1 would be {4:1, 2:-6, 0:1}-, someone have any suggestion to make? def degree(f): t = sorted(f.keys()) …

Hi. i made a database table table and i showed it in a jframe through jtable.I want to change my column name displayed.So far i used the follwing code. private void Update_table(){ try{ String sql="select stu_id ,stu_name ,Blood_group from student"; pst=conn.prepareStatement(sql); rs=pst.executeQuery(); md = rs.getMetaData(); int columnCount = md.getColumnCount(); Vector …

Sorry! The problems are all solved and every error is removed.. Sorry guys! Modes: Please delete this thread. CJ

i have here a code that add timeintextbox and timeouttextbox to calculate for the total hours work. my problem is that i want to subtract 1hour in the total hours work for the break time..please any idea on how should i do this? Dim TimeA As Date Dim TimeB As …

I'm bit new to C#. This is my code. When i click edit button in grid, it should be update the database. But now it is not update the database from this code. The database has original value after editing. after click edit button, it is shown a message box …

this is java webservices code and please convert to C# webservices code, just change for me , i think you understand my probelm, and please do for me here is a code below , <div>import java.io.FileOutputStream; import java.io.PrintWriter; import java.net.HttpURLConnection; import java.util.Enumeration; import java.util.Properties; import java.util.Vector;</div> <div>import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; …

Hey guys! So I'm trying to create a method that takes in a list of integers into an array and prints the elements inside the array line by line. How do I print the the elements? Here's what I have so far: public class Main { /** * @param args …

so i am using visual basic express edition 2010 i am now able to select an image and displaying it in the picture box. now i need to run a c code (its exe file) by clicking a button in the vb form. i was able to this too by …

I'm re-kindling some of my C++ theory and was working through a C++ SringBuilder class I found on the net. I understand it all except the 2 operator methods. (See listing below). Can anyone explain what these operator methods are for and how and why you would impliment them. class …

Hello Im trying to do some basic FTP work. What I am trying to do is: 1: Search for a folder named "hi" in "C:". If hi exists, enter it. If it doesnt, create it THEN enter it. 2: Inside hi, count FILES and see if there is greater or …

I have to write a program that accepts data for a class and then ouputs it in the main. so far i have this. #include<iostream> #include<string> #include<fstream> using namespace std; ifstream infile; class animal { string species; string family; string phylum; string desc; static int count; public: bool readIN(const string …

hello i' trying to take out data from start time and end time from my database record..any idea how to solve it for example: 2012-09-08 12:09:33 roadA 2012-09-08 10:49:09 roadA 2012-09-08 10:39:27 roadC 2012-09-08 09:09:33 roadA if i select 10:39:27 to 12:09:33, then only 3 data will be display...

How can i extract information inside the switch statemnt to outside in c langauge.... for eg. i want the information of case 3 to display out the switch statement, then how can i do ? plz respond,,,

Hi all, A problem asks me to create a point class,line class composing two points, a triangle class composing three lines.Also a right angle triangle and an equilateral triangle class both inherit triangle class.I did this. public class Point{ private int x; private int y; public Point(int x,int y){ //error …

Hi all, I know that Vector is synchronized, when I run the following program public class ClassA extends Thread{ static Vector<Integer > v=new Vector<Integer>(); public void run() { callMethod(); } public void callMethod() { System.out.println(v.size()); v.add(0); System.out.println(v.size()); v.remove(0); } public static void main(String[] args) { for(int i=0;i<1000;i++) { ClassA a=new …

hi everyone! I'm working on project which Generates certificates for different students. The interface takes the input of Name, College, Secured position and generates the certificate... but I want to generate all the certificates at once. So, to avoid overlapping of the file names, i want to generate different file …

Here is my code.... It is supposed to go throught this maze and can move where there are "." and blocked by "#". I keep getting an out of bounds error. Can anyone help me? import java.io.*; public class ProgramMAZE { public static char maze[][]= {{'#', '#', '#', '#', '#', …

Mirroring is done by copying. Suppose a Picture has H rows of Pixels and W columns of Pixels and W is an even number, like W is 2N. Here N is a the whole number that is exactly 1/2 of W. How many Pixels are copied when the Picture is …

Hi All, For homework I had to write a "guessing game" program, which I decided to take to another level and add on the option to add names and keep a score, etc. The problem is however, That my program will not display the text "*Player* Has Won! Congratulations!". Here …

---------------------------------------------TSet.h------------------------------------------------------ #include <iostream> using namespace std; template <class V> class TSet { public: TSet(); TSet(int size); ~TSet(); void add(V new_item); void remove(V item_to_remove); int num_of_items(); bool isFull(); bool is_item_in_set(V item); friend bool operator==(const TSet<V>& left, const TSet<V>& right); friend bool operator!=(const TSet<V>& left, const TSet<V>& right); friend ostream& operator<<(ostream& outs,const …

I have to use a basic ByRef and ByVal in a program and its not showing up in the labels when I hit the calculate button. The program I am creating is very basic and it calculates your age, nextyear age, month born, astrological sign, days old and seconds old. …

I have always used Excel.interop before but I thought oledb would be simpler because, for this application, I only have to read the data which it can't seem to do. It accesses the file alright because I can't open the file while I am at a breakpoint. It attempts to …

I can not figure out the problem with my program. I am extremely knew at this. The error I get is at the last ' } ' of the program it says "Error expected declaration before '}' token" please help? This is my code #include <iostream> //Header Files #include <fstream> …

Hello. I am attempting to make a text-based game in Python. Although I assumed it would be rather easy, there are not that many examples to go by. Therefore, I've come to ask for some assistance with my code - being the relative newbie to coding that I am. Excuse …

Ok guys i have a few questions about implementing a gneric hash table using linear probing. Ok first, i need to make an entry class Entry<K,V> then An Entry <K,V> table array but since its gneric must initiatied elsewhere my question is how does the class entry work , from …

When working with loop some time the loop goes into infinity while testing and I have terminate with “Ctrl+Alt+Del" and lose all unsaved work. How to get out of infinity loop without losing unsaved work. thanks

Method onPaint does not change the color. Does anyone know why? (there are no errors received) # explore the wxChoice widget # a simple ComboBox (dropdown box) that combines a ListBox with an EditBox # can't get the self.onPaint method to work!!!!! import wx ID_CHOICE = 120 ID_PANEL = 130 …

hi master programmers ! I am new to programming and i have an assignment im working on, it seems simple but i just cant get it ! i was wondering if anyone could help ! it would be greatly appreciated ! here is the question : =================================== "The sample input …