Software Development Forum

Here is my code:- [CODE]/* * To change this template, choose Tools | Templates * and open the template in the editor. */ package wrie.and.read; /** * * @author Administrator */ import java.awt.Color; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.*; import javax.swing.*; public class WrieAndRead { JFrame frame; JTextField field; /** …

Hi guys, the title says it all, I have produced list of numbers from a c++ program into an excel file, and I want to make a CDF graph out of it. What I know is that I need to find numbers greater than zero, then number greater than one …

My objective is to implement a GUI calculator in java. I am thinking of passing the expression entered by the user to bc and then get output from terminal and print to user. My question is [LIST=1] [*]How to execute a terminal command from java so that i can pass …

Good day to everyone. I have this trouble of stopping the timer at a specific time, say I have to stop the timer at 1:30. When I try to run it, it doesn't stop. Please help. Here's my C++ code. [CODE] #include <iostream> #include <time.h> using namespace std; void wait …

I am trying to get the program's decimal to output in two decimal places after the decimal. Please advise. [CODE] // MilesPerGallon.java // Program designed by XY import javax.swing.JOptionPane; // Needed for JOptionPane. import java.text.DecimalFormat; // Keeping proper decimal format. public class MilesPerGallon { public static void main(String args[]) { …

I don't know how to write code to exit for this program.someone please help me :( [CODE] import java.awt.*; import javax.swing.*; import java.awt.event.*; public class Panel extends JPanel implements ActionListener{ private JTextField height, weight, answer; private JButton calc, clear, exit; public Panel(){ this.setLayout(new GridLayout(2,1)); JPanel topPanel = new JPanel(); topPanel.add(new …

I am new to python and cant figure out what I am doing wrong with the global variables. Here is an example of the problem I am having. number = 0 def test(): global number number = raw_input("Please type a number.") def prints(): global number if number2 != 1: print …

I'm probably missing something really obvious, but I downloaded the Python 2.72 release, and now I can't figure out what to do. I've tried googleing it but everything says to just install it. Is that install the setup.py file? If it is, how do I run a python file if …

I have been programming in C++ for a while now. I heard about RSA Encryption algorithm, and i have read many online sites on how it works. But i still cant grasp how the algorithm works. i have tried to make programs with RSA, but they doesnt encrypt. If you …

hi every one. i am making a booking app in vb.net and im using sql server as my database. i am confused about table creation. I have increment of 1 in customerid which is primary key in customer table. Suppose if a customer books a room and according to the …

Hi everyone, I'm currently working on a cross-platform project to copy data from the computer onto a USB drive quickly. [B]Main problem: EOF in the middle of the file[/B] It's going good so far, but I stumbled across a problem in my copy_file function: [CODE]int copy_file(char *source_path, char *destination_path) { …

I started making a simple drawing program, to use for a level maker, and I came across a slight issue [CODE]from Tkinter import * class Main: def __init__(self,root): w,h = root.winfo_screenwidth(), root.winfo_screenheight() current = {} canvas = Canvas(root, width = w, height = h, bd=0) canvas.pack() root.overrideredirect(1) root.geometry("%dx%d+0+0" % (w, …

I'm studying enumeration at the minute and i've a quick question. In the following code using enum, are you limited to ouputting the sequence number of the possible values, or can you use the enum operator to output the text "green"? [CODE] #include <iostream> #include <sstream> #include <fstream> #include "conio.h" …

Hi all, How can i validate a text in text box? I need to check that text length is 7 and first four characters is contain "ABCD" and last three characters must contain numbers. e.g : ABCD123 Thank you.

I normally don't try to get outside help on homework that is still due, but I've kinda' hit a wall on this one. I'm trying to write a program that dynamically creates a list of scores for a group of students. It has to ask the user how many students …

Hi all, How do i know where the cursor position in the text at textbox? Anyone know how to do this? Thank you in advance

Hi, I want to make my staff id text box only accept upper case letters and not lower cases, please how do i go about it? I wrote these lines but they stil dont work: [CODE]Private Sub txtStudID_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtStudID.KeyPress txtStudID.Text.ToUpper() End Sub[/CODE] …

I want to get the information downloaded from a file (a BMP image) into a char array. I have this function [CODE] #define _countof(x) (sizeof(x) / sizeof(x[0])) char* DownloadBytes(char* szUrl) { HINTERNET hOpen = NULL; HINTERNET hFile = NULL; char* data = (char*)""; DWORD dataSize = 0; DWORD dwBytesRead = …

[CODE]sizeA = 2**28 M = [0]*sizeA[/CODE] The above code creates an array but, each element is 4 bytes each. How do create a large byte array with type 'B' (eight bits unsigned)? I would like it to be as large as possible. I need it for a sieve prime number …

Hello! So here I am again asking for your knowledge and help.:$ I have this little project of embedding the g++ compiler in my software. What I have done so far is place the compiler inside the bin of my project folder, inside the Debug folder. I managed to call …

[CODE] #include <iostream> #include<stdio.h> #include<string.h> using namespace std; int main() { // cout << "Hello world!" << endl; int t,i,j,a,flag; char str[1000001]; cin>>t; while(t--) { a=1; scanf("%s",str); for(i=0;i<=strlen(str);i++) {flag=0; if(!isdigit(str[i])) {flag=0; for(j=i-1;isdigit(str[j]);j--) { if(str[j]!='0') { flag++; a*=str[j]-'0'; //cout<<"flag"<<flag<<" "<<a<<"A"<<endl; break; } } if(flag==0) { a=0;break; } } while(a>9) { if((a%10)!=0) …

I need some help here.. I need an example to do that : ( a background task ) #includes blablalbalbla void?? ExecuteTask () { while(1) { cout << "first " << endl; } } int main () { ExecuteTask( ); while( 1 ) { cout << "lol" << endl; } …

I'm using a BackgroundWorker object to start a process, the following is inside of my BackgroundWorker.DoWork event: [CODE] ... process.StartInfo.FileName = "process.exe"; process.StartInfo.Arguments = arguments; process.StartInfo.UseShellExecute = false; process.StartInfo.CreateNoWindow = true; process.StartInfo.RedirectStandardOutput = true; process.EnableRaisingEvents = true; process.OutputDataReceived += new DataReceivedEventHandler(p_OutputDataReceived); process.Start(); process.BeginOutputReadLine(); while (process.HasExited == false) { if (worker.CancellationPending …

Hey I have a folder in my current working path and I want to make a copy of a file inside it to the the current working path. Its kind of a dumb question, I know, but how do it do it? Thank you.

Hi All, I wonder if anyone can help - I have been teaching myself Java GUI programming using a Mac running OSX Lion and Netbeans 7, and have followed the tutorial: [url]http://netbeans.org/kb/docs/java/gui-functionality.html#Exercise_2[/url] When I run the program, it builds and compiles fine, but only appears when I choose the command …

I'm send sound between two clients via UDP server Socket , How i can make users not feel the delay of sound ?

Hello, Im new to c# and i have a little problem. I have a folder with 5 text files (group1,group2, etc), each contains a list of names. On my form, I have 2 combo boxes. I want the first one to allow me to select a group (a text file), …

Hello, I am doing simple read/write program for serial port. I am faceing a error that i don´t understand. Error is: "error C2664: 'CreateFileW' : cannot convert parameter 1 from 'const char [5]' to 'LPCWSTR' " My whole program: #include <windows.h> #include <iostream> #include <string> using namespace std; void set_com_pin(bool …

So the project is to write a program (for a beginners C class) that compares 2 words and see if there anagrams of each other. I'm about halfway through the program and it was working fine until i tried to add the IF STATEMENTS with isalpha. What I'm trying to …

For school I have to write a program that requests a 3 part name and breaks it into a first, middle, and last name. I wrote the code but the alignment of my output is not right. I was wonderng if someone can tell me what I did wrong and …

[CODE] import javax.swing.JOptionPane; public class Finance { public static void main(String[]args) { boolean Access = false; String studentName = JOptionPane.showInputDialog(null, "Enter in your name: "); //String current = JOptionPane.showInputDialog(null, "Enter your password: "); //double currentBalance = Double.parseDouble(current); Account newAccount = new Account(studentName); //Gains access to Account class JOptionPane.showMessageDialog(null, newAccount.toString()); } …

Is there a way to get a Message from a website(like copy it), then have it show up in a textbox? If, so can you provide an example?

What I am trying to do is the following: [CODE] ReceiptBag zero("zero"); ReceiptBag one("one"); ReceiptBag bags[2]; bags = &zero; (bags+1) = &one;[/CODE] Of course that is not valid code. My goal is to be able to reference the same zero or one object by using its variable name or by …

Hi all, Having problems with null dates in a mysql table. Have eventually found out that I can store a 'null' date in mysql as "0000-00-00" and I can run the 'insert' command to add a record to the mysql table. When I check on mysql workbench I can see …

(I'm new to programming in general) I created a program in python without an interface and part of it used a raw_input to get a users answer and compare with a stored answer. This was in a loop that limited the number of attempts the user could have. This worked …

Hi, I'm trying to read a file, line by line, into an arrayList, assigning a different line to each element and ensure that: 1. It's actually happening (which is the reason for the println statements) 2. that the scope of the arrayList with the string elements filled in is sufficient …

Related to: C#; Windows form, Storing Multiple Instances of a User Control: Hi: I’ve created an app with a user control that accepts parameters. When a user clicks a button I need to store the current view of the control and bring into focus on demand. Several instances of the …

I'm using C# in VS2010 and I need some help with a web application. I don't have much experience with web services. I was given the url to a webservice containing methods required to build the login part of the application. No documentation. I have the login piece working though. …

So, even thou I have searched throughout the forums, I couldn't get a clear answer, maybe perhaps I'm a noob @ Python. As a beginner, I don't know much about Python, and it's frustrating to search the net and not find the actual answer. So, I'm working on this project, …

Hi Everyone, I am Actually trying to make a simple C++ game in which some random alphabets will fall down and when we press one of those random alphabets keys the aphabet should disappear. The problem that i am facing in making this code is that when i am using …

please solve my problem i want to know where we show text when we use copy cut command Example: we use a command Ctrl+C or Ctrl+X any text in textbox or any file or folder i want to view his clipboard where it link save OR view in Registry or …

Earlier on, in [URL="http://www.daniweb.com/software-development/java/threads/412571"]this thread[/URL] my question was answered about how to add objects of a custom class I called State into a HashSet which was a value for a key in a HashMap. [CODE]Map<String, HashSet<State>> mapping = new HashMap<String, HashSet<State>>();[/CODE] However, I need to ensure that there are only …

Hello, pls can anybody show how works printing? here is the code: [CODE]class Student(object): def __init__(self, name): self.name = name self.report = dict() def add_subject(self, subject): self.report[subject] = list() def subjects(self): return self.report.keys() def s_subjects(self): lpre=[] for subject in self.subjects(): lpre.append(str(subject)) print lpre class Subject(object): def __init__(self, name, teacher = …

i found this code in a book. i am finding it confusing. [code] #include<stdio.h> int main() { int arr[3]={2,3,4}; char *p; p = (char*)arr; // line A p = (char*)((int*)p); printf("%d",*p); p= (char*)(p+1); //line B printf("%d\n",*p); return 0; } [/code] the answer is: 2 0 but i cant figure out …

My form has a TextBox with values like(e.g: P011112, C0212102) those are products lot numbers that the user enters. Then, what i want is that a DateTimePicker takes the first 4 digits as "MM-yyyy" and add 3 years to that date. Example: TextBox.text = P011112 DateTimePicker = January, 2014 Thanks …

Hi, can you have a quick look at the two for loops here. I've declared the int 'i' in the first for loop but in the second for loop it doesn't recognise it and i have to declare it again. Why is that? [CODE]for(int i=0; i<x; i++) { cout << …

Hi, I have a form with a button which is disabled by default, and a CheckedListBox with 68 items in it. What is the simplest way of enabling the button, when an item in the CheckedListBox is selected or unselected? I’m looking for something like If CheckedListBox1…any of the items …

[code]Form Payment DGV.Columns.Add("FullName", "Customer") ' DGV.Columns.Add("InvNomer", "Invoice No.") DGV.Columns.Add("BalanceDue", "Total") DGV.Columns.Add("Paid", "Paid") Private Sub cmdPayList_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdPayList.Click ' where = " AND InvNomer NOT IN(" ' where = where & "'" & row(2).Value & "', " ' where = where & ")" PayList.show() …

Can anyone please help me out in removing this error Exception in thread "main" java.lang.NullPointerException at java.awt.Container.addImpl(Container.java:1045) at java.awt.Container.add(Container.java:365) at Client.<init>(Client.java:33) at Client.main(Client.java:17) [CODE=java] import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.io.*; import java.net.*; public class Client { JFrame frame1; JList list; JList list1; JTextField tf; JButton send; JButton lout; …

1 1 0 1 0 1 1 0 1 0 1 0 1 0 1 How To Print The Above Pattern ?? (Using For-Loops Only)