Software Development Forum

Hi, I'm having trouble lining up data from a file with their respectable columns in a list box. I am using print zones to space out data evenly, but when i run the program the output is still messy. So I need help lining up columns properly together. As of …

Hi, Im trying code something which will launch an executable file. I have tried system("example") but the only problem is that the file which has been launched has to be closed before the rest of the code is executed. Does anyone have an alternative to this method?

is the initialization happens in this order? The order of variable initiation is the following: 1) Static variable/methods are initialized first. 2) The object. 3) Object variables.

Hello All, I am getting the infamous Argument ___ isn't numeric in sprintf. I've looked around but I can't seem to fix the issue. It seems to occur if it has a 0. in front of the numeric pattern that causes it. Does anyone have any idea of what I …

Hi.. this is my code: [code] import java.util.Scanner; public class Arrays { //private variables private int[][] list = new int [12][2]; private int highest; private int lowest; //public functions Arrays(){ highest = 55; lowest = 5; list = new int[12][2]; } public int getData(){ Scanner input = new Scanner(System.in); for …

I'm new to Python, so bear with me..... I'm calling the Dislin plotting package from python to plot in a wxPython panel. This works OK but the plot gets grayed out when another window is moved over it. There is a Dislin function, sendbf, which updates the graphics window with …

Suppose I have these two functions: [CODE]template<class T> bool largerthan(T a, T b) { if(a>b) return true; return false; } template<class T> int reduce(T ar[], int n) { list<T> buffer; buffer.insert(buffer.begin(), ar, ar+n); [COLOR="Red"]buffer.sort(largerthan);[/COLOR] buffer.unique(); copy(buffer.begin(),buffer.end(), ar); return buffer.size(); } [/CODE] I have two kinds of arrays for reduce(): string …

Could some one here tell me how to resolve the problem it says duplicate DecimalToString Dos that mean i cant use a macro twice in the same program if yes how to print more than one number Thanks in advance [CODE];Author :Alerwi Ali ; function: Calculate the sum of ; …

I can't get my userName variable right, it prints out user name the first time, but the second time it prints out null...I've been at this same problem for nearly 24 hours. [CODE]import java.util.Random; import java.util.ArrayList; import java.util.Scanner; public class mlab { // instance variables - this instance will get …

Hi, I am new in python and programming basically. I have a code that compare 2 files by the first column and prints a file with the common lines. But i need it to compare the first 3 columns and print the file. I kind of have and idea of …

Hi, I know that there are many topics about this, but, i read a lot of them, and no one solved my problem. I doing some exercises of the book "Deitel How to Program, 5", and in the exercise 4.27 i need to write a program that get a binary …

Hello I have a question regarding this program in c. My assignement is as follows : *read the angle in degrees *convert that angle in radians *Apply the formula for calculating cosine function with factorials *Then, automate the above calculating procedure by using loops *Afterwords calculate the absolute error between …

Hello, I have an application with two MediaPlayers. MediaPlayer1 I want to play a video and MediaPlayer2 I want to play a sound file. My problem is that I don't know how to control the sound volume from MediaPlayer1. How can I set sound volume to zero for MediaPlayer1?

hey, can anyone help me with these comlexity problems? I tried with myself but still want some clarifications..cheer,here is the code: [CODE](a) public void printPow2(int[] values) { for (int i = 1; i < values.length; i *= 2) System.out.println(values[i]); } (b) public void maxDifference(int[] values) { int max = 0; …

Hey guys, I'm new here and a n00b in Java, trying to figure things out though :) I want to make a polygon move in a Java Applet but I keep struggling with the keylistener (aka it doesn't do anything) Maybe someone can help me please? Here's my code: (I'll …

Hi, I have a text file that I'm going to read, and then parse it. After parsing it, how do I return it into it's original position or layout as before? Because now after parsing it, my output is printed out individually, instead of printing it out how it looks …

I am writing a toString method where a it returns three integers. If any of them are less than ten I have to add a zero before the number. For example if I had the variables 5, 6, and 2 it would read 05:06:02. I really can't figure out how …

Hi, I need some help with my C++ program. I've got these custom-made PlaySound(char[MAX_PATH]) and PlayMusic(char[MAX_PATH], bool) functions that use the BASS sound engine. When I call an instance of OPENFILENAME (found in the samples), the sound (.wav and .mp3) plays perfectly. My problem is that once the sound declared …

Hi all, Ive been working on this little piece of code down there that removes the odd numbers from a list of numbers. I get an "IndexError: list index out of range" whenever I try to run it. From what I understand, it means that l[i] is attempting to use …

Ok, I'm getting a little confused on how to do this. Basically i got N stacks of cards. And need to check the topCard of every stack and check that N - 1 cards match then remove them. I peeked every stack of cards to get the top card, and …

Dear all, First of all I must say that I have just started with C. I've been doing some Java and C# as well but not very much of them too. In my new course of C, which goes on much rapidly than one can catch something, I am given …

I am writing a program that reads text but must ignore case, spaces and punctuation while evaluating a string for palindrome. When I use the following the case issue is solved. [CODE] String str = ""; if (str.toLowerCase().charAt(LHS) != str.toLowerCase().charAt(RHS)) [/CODE] ...but when I use the following I get IndexOutOfBoundsException …

I have an application I'm making... And it has a canvas in it. The problem is, on the y axis, my canvas is offset by ten pixels downward and I can't figure out why. You can see what I'm talking about in the screenshot. Do you know what's wrong?

Hi, I have decided to learn C# and since I have good knowledge of C++, I hope it would be easy. I have faced an error I dont understand. It says [COLOR="Red"]Polygon' does not contain a constructor that takes '1' arguments (CS1729)[/COLOR] AFAICS, all is well and constructor does take …

This is what my program is supposed to do: [LIST=1] [*]Print the vector (m1) [*]Print the matrix (m2) [*]Multiply the vector and matrix together and display results [/LIST] The only thing wrong with my program is that I can't quite get the right results displayed. The correct display of values …

The first time my code loops through my nested while loop it works. But the second time it doesn't- I don't know why. Could someone tell me the reason. [CODE]m = [['__', '__', '__'],['__', '__', '__'],['__', '__', '__']] z=1 count=9 f=[0,2] from random import choice w=choice(f) from random import choice …

I can't think of a way to get rows out of a table. It was easy doing it with VB.Net and I'm just finding vc++ really difficult. This is what I have so far. I've connected to the database file and I am able to get the data shown onto …

Hi! I've decided to open a new thread for discussing the problem with uploading a file to a SUB-FOLDER at the FTP Server. So, I'm using Apache Commons library and I can upload my file to the Home Directory of the FTP server. However, if I want to upload it …

I get this error: variable or field 'calc_score' declared void and I am pretty much stuck. Here is my code, it obviously isn't finished but I need to be able to get this void to compile to continue on. [CODE] #include <fstream> #include <iostream> #include <cstdlib> #include <iomanip> using namespace …

Hello All, I am trying to find where the error is when I compile this Perl script but I can't seem to locate it. It is stating that it "Can't find the string terminator "FOOTER" anywhere before EOF at reddrill.pl line 54. I have went through and checked for extra …

Is there a way in python to look through a file line by line and find a word in that line, but only if the word is the first word in the line? Like if it was looking for the word "apple" then it would only notice if the line …

Hi everyone, how do i push item with a givin index in a linkedlist. e.g. linkedlist.add(element e, int index); this is my function [CODE]public void push(Student s, int index){ if(isEmpty()){ start = s; }else{ last.next = s; } last = s; size++; }[/CODE]

i want to know whats the error over here. i just want to store the three value in a node and making a linked list but after storing two nodes that is headptr and than temptr, when the third node is made it stops. I think my error is somewhere …

Hi! I would like to develop a software that will allow me to find a file (using JFileChooser) on a local machine and save it to a remote machine. I know an IP address of the remote machine. Please, give me some explanations or a link to some tutorials regarding …

Having a little problem with my code. I'm thinking it is a name somewhere that is the problem, but cannot find it. Getting warning that inventoryTable is never assigned to and will always have default value null. I have read that this warning can be disabled but when I try …

Hi all :) Recently i got a an assignment to be done which need to deal with c++ pointer.. This is the question : [B] Write a function that accepts a pointer to a C-string as its argument. The function should return the character that appears most frequently in the …

when is it called in an inheritance hierarcy. is the base static constructor called before the derived static constructor?

Is there anyway to play an mp3 file in java? P.S I'm new here, hello world?

Hi. I can't figure out how to remove an element from an array. will I have to move get the element to be removed and swap it out with the last element and use the pop()?

Hi everybody. I need to pass the value of a pointer to a struct for a server program to a client program. my code is the following for the server: [CODE] write(ns, &fixedparkpnt, sizeof(fixedparkpnt)); write(ns, &fixeddriverpnt, sizeof(fixeddriverpnt));[/CODE] and for the client: [CODE] read(sock2, &fixedparkpnt, sizeof(fixedparkpnt)); read(sock2, &fixeddriverpnt, sizeof(fixeddriverpnt)); [/CODE] sock2 …

Hello, I am a current Java student and am having a problem when I run my compiled program from an in chapter lab assignment called "Stock Tracker". I receive a message from a dialog box "Cannot locate sun.jdbc.odbc.jbcOdbc Driver. Class not found exception creating database object. Following are a list …

Hi there ! I have a tree view control and a button in Form1. The button takes me to Form2 which has a text box and a save button. What I'm trying to do is get the button on Form2 to add what i have typed in the textbox as …

I have numbers represented as chars (eg. '11.27') I want to type cast it to a double but im getting "pointer value used where a floating point value was expected". Any ideas?

Hi! I have a project in school about a grocery list...can someone help me make a code for this? I really need it....thank you so much! here's the problem: This application is called the “DAWLIMs Grocery Store”. The team has closed a contract deal to develop an application of a …

Hi guys, I am trying to iterate through a list. This is my code: [CODE] #assume this is the list: list1 = ['a', 'b', 'c', 'd', 'e', 'f', 'g'] def iter_list(a): for s in a: return s #here it is when it runs: print iter_list(list1) a [/CODE] why doesn't it …

I was trying to get this work, but couldn't find a way to work this out. I'm new to vb.net. In a text box, the user enters a number for example a 9 digit number. I want the user enter to enter a 9 digit number that is starting from …

I have a tree, and I want to find the depth of it. For example for this tree: [CODE]0 root / \ 1 5 1 / \ 2 1 3 | 3 2[/CODE] It should give a depth of 3. [CODE] public int getDepth() { int maxDepth = 0; if(this.hasChildren()) …

how to validate a text box to accept only alphabets and numbers. no special characters. in vb.net i have tried the following code but it doesn't allow numbers but it allows alphabets only [CODE]Private Sub TextBox2_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox2.KeyPress If (Microsoft.VisualBasic.Asc(e.KeyChar) < 65) _ …

Hello everyone! I'm making a tetris program, and now I'm stucked a bit. I have to use the simple getch() function, but in a special way. I need to use it for exact time, and when the time is up, I need to break the function, even if I haven't …

I just want to know if this is done right. And some suggestions on the commented line. [CODE]msg = ... import re msg = re.sub("[^\w ]", " ", msg) names = [] for x in msg.split(): if (x[0].isupper()) and not (x[1].isupper()):# I think this should be done in a different …