Software Development Forum

Hello daniweb, I am new to Java and to this forum! I am trying to put some objects into an array like this.. [code] MovingPlatform[] platforms; platforms = new MovingPlatform[1]; [/code] The problem is that I want to be able to access variables of objects within my array. I have …

i am new to c++ so please dont throw any crazy words around :D im using dev C++ form bloodshed as my editor / compiler what i am trying to do is when a user hits one of the special buttons all keyboard input after that will be reformated depending …

[code] Program to make snowflake! # Local graphics module. Must be in same folder as this # program (or both on Desktop) import ecs10graphics as gr # Math module that comes with Python import math def pointOnCircle(f, r): # f is fraction of the way around # r is radius …

Hi guys and girls I am writing a program to solve a linear system equations using gaussian elimination method by taking the factors and storing them in a NxN+1 matrix, this matrix can take integer numbers as well as floating point numbers i need help in translating this program to …

Hi, I am using VC++ 6.0. When i clear a vector using vector.clear() the capacity is not being reduced to zero. Hence the memory is not being deallocated. I have tried to reduce the reserved size by use of vector.clear() followed by vector.reserve(0). This however has no effect. I have …

in this program im tryin to keep the guests in a line and the numbers in another line ... but it always start from the middle of the list I dont know why take a look : [CODE]class Program { static void Main(string[] args) { string x = "Guest_TheDreamBoi Guest_XxEmoChickGirlxX …

Hi All, I am trying to create a 2D array of the [B]"CString" MFC class,[/B] however it needs to be declared dynamically for my application. I have read up on numerous forums but I just cant seem to find what I am looking for. From what I have read the …

To add check box to grid who s auto generate column property is true. I wish to select all the rows who s check box is checked .which can be checked by the user after generating the grid so at generating time all item template check box default values want …

Dear All, I am opening a file called initialisation: [CODE]try: initFile = open("initialisation.dat", "r") except IOError: print ("Initialisation file cannot be openned for reading")[/CODE] I would like to read the contents of this file and then print them on several other files i.e. file1, file2, file3, file4, etc. i am …

Hi all, I've been google'ing my backside off in search of a good example/tutorial for java gui's. Could anyone supply me with a link to a website that could supply a tutorial and/or some examples? Would be great, thanks. P.S. I use Eclipse, with no GUI editors, so I need …

I have a button, if I press the button, new picturebox will appear in my main form. How to add picturebox name in the listbox ? how to select picturebox name from a listbox for deleting the selected picturebox? thanks...

hey all, I'm using a form to throw info straight into a database. i know it isn't the best way but i'm new and all other implementations have confused me (i've been reading and watching tutorials for 2 weeks) but anyway i'm going to take the info straight from the …

hi, how do I create an array of pointers to a struct using malloc? using malloc like this- [CODE=c] abc * a = (* abc)malloc(sizeof(abc)*10); [/CODE] I get an array of struct objects. I can access member elements using the "." operator. eg a[2].xxxx what I want is an array …

Hello! I have this homework problem, that I thought I had figured out, but once I fixed all the syntax errors and debugged it again it gave me some weird numbers...something I totally didn't expect. Can anyone give me a clue as to where I went wrong? I suspect that …

the delete must be by copying the data and then deleting if their are 2 nodes from that one root. CODE IS AT VERY END FOR THAT. CALLED REMOVE. Thanks. main [CODE] #include <iostream> #include "my_bst.h" using namespace std; int main() { my_bst<int,int> ab; ab.insert(4,1); ab.insert(2,2); ab.insert(6,3); ab.insert(1,4); ab.insert(3,5); ab.insert(5,6); …

hi..pls help me with this ...when i run this c program i get in result segmentation fault message (i run in ubuntu terminal): [CODE=c]#include<stdio.h> #include<utmp.h> int main() { char *s,*c; struct utmp *u; int i; c=getlogin(); setutent(); u=getutent(); while(u!=NULL) { if(u->ut_type==7 && strcmp(u->ut_user,c)==0) { printf("%-12s",u->ut_user); printf("%-9s",u->ut_line); s=ctime(&u->ut_time); for(i=4;i<16;i++) printf("%c",s[i]); printf("(%s",u->ut_host); …

I am trying to create a timer that calls a function when the timer ends this is the timer class [code] class CreateTimer{ float OverallLapsed; float EndOfTimer; bool Running; public: CreateTimer::CreateTimer(float); void StartTimer(); void StopTimer(); void Lapsed(float); void SetEndOfTimer(float); bool CheckTimer(); void ResetOverallLapsed(); float GetOverallLapsed(); }; CreateTimer::CreateTimer(float EndTime){ EndOfTimer = …

So here is the problem. I have a file that starts with a number, this number says how many entries are in the file (5 means there are 5 names). Each entry takes up two lines in the txt file. First line is the name, the second is a group …

Hello, I want to store all ListView items of index (2) in a MultiLine TextBox, Please explain how can i transfer all listed text of specific index

i am a bit stuck on this, i need to call the first 2 functions for the output in the 3rd one. The user has to should be able to continue until they want to stop converting and they should be asked on which way the conversion is to be …

Hi, i just don't get why this isn't working. It is supposed to read from the end of a .txt and up, until it hits the first space but it just keeps repeating the last character in the text file ip.txt Any help is much appreciated. [code=c++]#include <iostream> #include <fstream> …

[CODE]def main1(f): return (f - 32) * 5.0 / 9.0 def main2(c): return 9.0 / 5.0 * c + 32[/CODE] the two function above convert fahrenheit and celsius I have to write a third function which calls the two functions above and allows the user to input to convert between …

I want to read two points in a picture. Most pixel values will be (0,0,0). I don't know how to take the flatted data and separate it into x,y coordinates. I use the Image library and VideoCaputre.

I have two processes where the First process sometimes is writing to a file and the second process is reading this file. For the second process I wonder if it is possible to only read the file if the First process does not use the file. How would it be …

Hi all! I want to make a subclass of dict and I have read about subclassing and the super method. The problem that I do not get is how I override the following method: [CODE]dict[key] = value[/CODE] This creates a new key with the specified value. I want to override …

I was trying to create a 3x3 list of lists, and came up with this surprising behaviour: [code]# creating a 2D list with an overloaded * operator mlist3 = [[0]*3]*3 print mlist3 # [[0, 0, 0], [0, 0, 0], [0, 0, 0]] mlist3[0][0] = 1 print mlist3 # [[1, 0, …

i have to write a program that simulates the flipping of a coin. 1. the function should ask the user how many times the coin should be flipped 2. the program should display the poportion of times that the head and tails appeared. (for example if the user enters 10 …

Okay, so I am writing a media player and I would like to be able to control the entire thing without the use of a GUI. So...are there any libraries or anything that would allow me to collect keystrokes on any OS (not just Windows)? Thanks in advance.

Hi, I'm trying to update an objects information within my linked list but for some reason after attempting to alter the data no changes appear to have taken place. As far as I am aware I'm not updating a copy of the object because I am finding the relevant object …

Hi.. I'm writing a code for the cash receipt program.... before this,i already make this kind of program.. but the program that i've made before is simply doing this task only : [B] //ask the user to enter the product information... Enter the product id : Enter the product name …

Hi Can anyone please check my code ? I'm trying to get today's date from database I tried many ways and I'm stuck now.. at my database access the transdate appears like this [CODE]11/29/2009 2:02:23 AM[/CODE] and this is my query code from VB.NET [CODE]"SELECT TransDate, Deposit, Withdrawal, TotalAmount FROM …

Hello Everyone. I am creating this Windows Forms Application using Visual Studio. Basically, in order to do what I want to do, I need to use an integer, and that integer needs to be converted into a string in order to change the label text, when pushing the button. However, …

Hey Everyone, I have written this Matrix Multiplication program. But The Program seems to crash when during the filling of the first matrix, exactly after the completion of the first row. Here is my implementation [code] #include <iostream> using namespace std; void generate (int ** ,int ,int); void fill (int …

Hi *, I have some doubts about passing parameters to a method of a class. I am not sure if it is a problem of my design of the app or a problem of the implementation, I mean C++ knowledge. I have a class called MatrixHandler : The idea is …

Good evening, everyone! I'm currently writing a game for a class, and I'm attempting to add a few extra features that aren't required. The one that is giving me difficulty is the high scores. I am saving the score and the name as a string. When a game ends, it …

Hi All, I am extremely new to C++ and would greatly appreciate any advice regarding the following question: I am trying to create a 2D array of CStrings, however it needs to be declared dynamically for my application. I have read up on numerous forums but I just cant seem …

So i want to define a variable with the index of a current step, and then print that variable. For example I have a loop with 10 steps, and i want to define 10 variable: x1, x2, x3....x10 and then print them out: x1=something, x2=something, ......, x10=something.Does anyone know how …

Hi, I have a problem. I have this image with various regions detected and coloured differntly. What I now need to do is, to find the mathematical center of each of these regions. I have the code for this. [CODE] int labelnew = 2,centerx,centery; List<Point> l = new List<Point>(); Point …

Hi, What is the problem of this program ? It should print intertech systems, but it doesn't do . This program must convert all letters of the string to lowercase character . [code] Page 60 , 132 TITLE A08CASE (COM) Change uppercase to lowercase .MODEL SMALL .CODE ORG 100H BEGIN: …

Hi please help me in this code, it gives always error on execution of command is comes. [code=vb.net] Try DBconnect() cmd.CommandText = "Designation_INSERT" cmd.Connection = con cmd.CommandType = CommandType.StoredProcedure 'Fill the Parameters of Store Procedure Param = cmd.Parameters.AddWithValue("@DesignationID", TxtDesigCode.Text) Param = cmd.Parameters.AddWithValue("@DesignationName", TxtDesigName.Text) Param = cmd.Parameters.AddWithValue("@ApprovedBy", TxtDesigApproved.Text) cmd.ExecuteNonQuery() 'Error Comes …

Essentially what I'm trying do with nested statements is that when I enter the the second switch stament and when I exit the second switch statement it goes back to the first switch statement menu. Currently the current code exits the entire program after the second switch exits, which of …

hi im trying to create a C# program that'll display * ** *** **** *** ** * type pattern but i can only get mine to look like this when i try to add on to the code * ** *** **** and then it stops. can anyone help on …

First of all, I'd like to say hello to the Daniweb community as a first-time poster. I'm sorry if this is a common error for you folks to deal with, but my preliminary search of the forum didn't really help me all that much. So here we are. Onwards to …

hi everyone i have a problem in my project that i have made pleaze help!!!!! this project allows the user to read words and their meanings from file and store them in AVL tree and then print the tree inorder, postorder, and preorder then print the result to file in …

I'm writing a program that is supposed to be able to bubble sort data by name and by average. The data I'm given is student last name followed by 3 scores, all put into a text document. I'm to read the names and scores into their respective parallel arrays, and …

Hi I have a windows application that prints a record in a given page size. I looked all over but i could not see how did it set the page size. and now requirement is to print the paper size in legal paper size of 18.5" by 14". How can …

Hey so this is an assignment and what we have to do is: [quote] Design a class that can be used to represent types of food. A type of food is classified as basic or prepared. Basic foods are further classified as Dairy, Meat, Fruit, Vegetable, or Grain. The services …

Hi I am trying to open a MS Access db via CommonDialog1. All is fine untill I click OPEN after selecting the db I want. What I then get is a dialog for ODBC entitled SELECT DATA SOURCE with two tabs: File Data Source or Machine Data Source. If I …

These function calls are not compiling for some reason, I receive the following error message when I attempt to compile. [QUOTE]hw11.cpp: In function âint main()â: hw11.cpp:70: error: expected primary-expression before â]â token hw11.cpp:71: error: expected primary-expression before â]â token hw11.cpp:71: error: expected primary-expression before â]â token hw11.cpp:72: error: expected primary-expression …

how could i double a number when clicked on in the graphics window?... this is for graphics.py and a line separating the two sides in the graphics window and on each click on either side it must go up by 2 until 12? i can only think of using a …