Software Development Forum

Hi all, I'm fairly new to python and I'm stuck with a problem. What I'm trying to do is write a recursive function that takes a list of integers and returns true if the list contains a single pair of integers whose sum is negative, and false otherwise. For example: …

[CODE]from tkinter import * def handler(event): print("Clicked at", event.x, event.y) class Application(Frame): def __init__(self, master=None): Frame.__init__(self, master) self.grid() for r in range(6): self.master.rowconfigure(r, weight=100) #Creating custom buttons self.master.columnconfigure(0, weight=100) Button(master, text="Red",command=self.colorit).grid(row=6,column=0,sticky=E+W) self.master.columnconfigure(1, weight=100) Button(master, text="Blue").grid(row=6,column=1,sticky=E+W) self.master.columnconfigure(2, weight=100) Button(master, text="Green").grid(row=6,column=2,sticky=E+W) self.master.columnconfigure(3, weight=100) Button(master, text="Black").grid(row=6,column=3,sticky=E+W) self.master.columnconfigure(4, weight=100) Button(master, text="Open", command=self.hanlderf).grid(row=6,column=4,sticky=E+W) Frame1 = …

hello I'm trying to create program to check for the user password"only numbers" if it's correct then go to the next step. if not just type Invalid password the password should be store in another file which is "password.txt" this is my code but I couldn't make the program check …

below is my current code for a math game i'm having problems creating the answer checking part of it, any assistance is appreciated. [code] import javax.swing.*; import java.util.Random; import java.awt.Button; import java.awt.Color; import java.awt.Dimension; import java.awt.Event; import java.awt.event.*; import javax.swing.*; public class MathPanel extends JPanel { // Declares Labels and …

I am creating a rock, paper, scissors game (RPS) for my C++ class. I got most of the code working but I can't figure out how to implement the Log and the printLog functions an. I've been working on this assignment for the past 6 hrs and this is the …

Hello I can't understand OOP in python I am looking to good tutorial , i am looking to good tutorial , about OOP in python from zero Thank you

I've searched google and tried several different things but I can't figure out how to read strings into a two dimensional character array and also read doubles into separate arrays all from the same text file. Please provide any help you can and let me know how you might accomplish …

Hi, I am trying to get the value from a field in my Access DB.Once the value is retrieved I need to be able to compare it to a condition I set. I still haven't figured out the right code to make this happen....i don't know if I should convert …

For some reason the file that I input into my GUI isn't being found by Java even though windows explorer finds it just fine. If you'd like to see a specific part of the code, just ask! Thanks in advance, Jack

Private Sub ComboBox6_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox6.SelectedIndexChanged con = New SqlConnection("Data Source=DEW-D63D9D2D032\SQLEXPRESS;Initial Catalog=system1;Integrated Security=True") con.Open() sql = "Select Faculty_Id From Faculty where Faculty_Name='" + ComboBox6.SelectedItem.ToString() + "'" cmd = New SqlCommand(sql, con) rdr = cmd.ExecuteReader() While (rdr.Read()) fid = rdr.GetInt32(0) End While con.Close() MsgBox(fid) con1 …

Originally I had the program all in main but I wanted to separate this by having the comparison method (diamond of asterisks) in its own method. For some odd reason I'm getting weird errors that won't allow the program to run. Errors below: 1) Systan error on token "," delete …

hello i have my code here and i want to add two numbers together constantly #include <iostream> using namespace std; int main() { int a = 10; int b = 10; cout << a+b; return 0; } how to make A+B add constantly?

My question is ; how to take a value from a loop and continue the loop and take the new value again, print it and add it to the old one? thanks [CODE] while (numCourses <= 3) // loop 1 times { System.out.print( "Enter grade (one character): " ); // …

I'm new to Java (2 weeks) and was given a class assignment to create a program that takes a 5 digit number and checks to see if it is a palindrome (same forwards as backwards.) The requirement stated to use the methods main(), retrieveInput(), check(), and display(). My code works …

I am trying to open a text file in C++. I dont want the file to be open in the console i want to open the file using one of the text editors like gedit. Can someone show me how to open it using gedit and not in the console. …

How would one listen for keyboard input, without causing the program to pause waiting for the input? For instance say you have something like [CODE]float num = 0; bool runloop = true; for(int i=0; i<1000000 && runloop; i++{ n += some_time_consuming_transformation(i); // How to listen for input at this point? …

Hi all, I'm new to python. I am developing a text to speech application using python. So, I'm using a package named "pyTTS" version 3, compatible with python 2.5. Using an existing example, I wrote the following orders: [CODE] import pyTTS tts = pyTTS.Create() [/CODE] [B]Before this, I've installed the …

Well its simple: I'making a group of programs that use one file for settings, however not all settings are used for all programs so instead of making another variable is there any way to just throw, let's say the first line to null read the second line feed the third …

I am trying to write a program that collects gas receipt information. I only want it to ask one time for how many receipts there are and then I want it go ask the loop of questions. How do I do this? I'm guessing I can't declare multiple variables in …

Greetings! I've been working on this program for the past couple of hours now, and I cant seem to get it right. I'm supposed to write a program that reads in integers from a text file, and then find the sum of the integers. The problem I'm having is with …

The problem ''Ask the user to enter a year and store it in an int. Then assign to a _Bool variable the value true if the year is a leap year. The leap year is any year whose number is a multiple of four. Take into account that years whose …

Hi folks, I had created a class for student. This is the class. [code] class student { int rollno,marks; char name[20]; public: void show(); void get(); int filecreate(const string &,fstream &); int fileopen(const string &,fstream &); static int add(const student &,fstream &); static int read(const student &,fstream &,int); static int …

Hello DaniWeb Users, I am new to the forum however from what I have seen it is exceptionally good! I have searched the forums already and found various questions relating to a similar problem as mine however I am unable to work out how I can amend this for my …

I'm working on a program that prompts the user for the numerator and denominator for two fractions. Then it will display the two fractions, then display the product of the two multiplied together, then the reduce form of that, and then finally it will prompt the user if they want …

Hey, I am having trouble compiling in netbeans. When I go to compile, I usually go to Run>Clean and Build Main Project (or shift F11). When it compilies, it says Copying 1 file to /Users/me/NetBeansProjects/JavaApplication11/build Nothing to copy. And when I go to run the .jar file, it doesn't open …

Hi I keep on getting data altered when I receive it example: [CODE] SAM:~ SamarthAgarwal$ telnet 192.168.1.39 8888 Trying 192.168.1.39... Connected to 192.168.1.39. Escape character is '^]'. --Welcome To HACKNET-- Username: Admin Password: pass --INCORRECT IDENTIFICATION--Connection closed by foreign host. SAM:~ SamarthAgarwal$ [/CODE] the data on the server side: [CODE] …

Hi, I have my application in VS2008 and coded Vb.net. My query is i want to save record from an excel sheet to my Database Table. But i dont want to insert the Excel sheet as a whole rather i want to insert the record in my database table Row …

i want to dynamically add the values in the column of a datagridview the row of which is also being created dynamically... [CODE]Form1.TextBox10.Text = total con.Open() cmd = New SqlClient.SqlCommand("select product,Quantity,MRP,Sale_Rate,Disc_Amt,Amt from sale_table ", con) adapter.SelectCommand = cmd adapter.Fill(ds) Dim r As Integer = ds.Tables(0).Rows.Count Dim counter As New Integer …

This snippet defines a decorator to automate attributes setting in class instances at creation time. It can be seen as a gadget feature but it can also be handy especially for fast class prototyping.

I've created an image with PIL, and I'm trying to get it show on a Tkinter GUI, but I get a blank window. Any ideas? [CODE]import Tkinter import Image, ImageTk, ImageDraw #create an image image = Image.new('RGBA', (100, 100)) i = 0 draw = ImageDraw.Draw(image) ## draw some lines for …

hh.. how can i get the value accumulated from the date i select from datetimepicker1 to datetimepicker2 in vb.net and mysql? the value here refers to the daily sales and i need to find the total sales between the range dates that i choose.. please help me..as im beginner and …

Hi.... I wrote a program for Quick Sort algorithm.... It is compiled fine....but it is giving a run time error i.e., Segmentation Fault.... I tried hard but couldn't find out what is that thing causing segmentation error in this program.... Please help.... I'm getting segmentation fault very frequently (i'm using …

I am working on packet analyzing software, so i just need a kick to start by reading the packets of wireless, but i dont have any idea regarding to it... Any who handled such kinds of projects before please help me a bit....

Hey Guys, I am really trying to get into List-Implementation. Everything I wrote works fine except the "delete Element at Position" funktion. With the iterative Implementation there is no problem, everything works, but I want to do a recursive Version. This is the Task: Invent an algorithm which becomes a …

Hey everybody. I'm new to the forum and have some experience with C#. I need to build a 2D box on screen using C# and have a ball that bounces around inside the box. I have to make a command key to stop and start the ball. I'm pretty lost …

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click strsql = "delete from student_info where Student_No = " & ctrl & "" Dim sqlcmd As New SqlClient.SqlCommand sqlcmd.CommandText = strsql sqlcmd.Connection = sqlconn sqlcmd.ExecuteNonQuery() MsgBox("Student Deleted") Me.fillclasslist() When I try to delete a student in the list …

I’m trying to use an Aug20th 2005, how to set file access time, here on DaniWeb. I need to modify the file times for a “C”, not C++, Visual Studio 5, console ap that I am working on. Here is the exact code for the project: [CODE]#include <windows.h> #include <stdio.h> …

I have a java code that i don't know what is the problem. could you help me? On"Stock testStock = new Stock();" I get an error message that says " Stockcannot be resolved to a type." import java.util.Scanner; /** An application class to test Stock class */ public class StockTesting …

hello all how is the code to move the cursor from textfield1 to textfield2 right after key "enter" pressed ? thank you denny

Hello! I am writing a java program. This application will work on very slow computers too. 1) My application prints on the command line logs about what action did the user. Sometimes one action needs to write 50 lines on command line. Sometimes 2-3 lines... But these 50 lines are …

I am doing a program to do dfs traversal given the adjacency matrix. My code follows: [CODE] #include <iostream> #define SIZE 10 using namespace std; bool M[SIZE][SIZE]; int flag[SIZE]; int dfsNum[SIZE], num; int n; void dfs( int u, int p ) { flag[u] = 1; dfsNum[u] = num++; for( int …

Please help me out to put the above code of delete array crashing together, because I've been trying millions of time. Please help. Thanks a lot.

Hello there Daniweb community, i am creating a 2d game in Java, however i have a problem. I googled up KeyListeners for JFrame, as they didnt work as usual, and i found out that when using KeyListeners with JFrame you have to set focus, right? Well. I have Googled abit …

Does USSD syntax include other characters other than "[B] * and digits[/B]". While [I]googling [/I] I have not found where it is explicitly explained. This is because I am getting ERROR while sending USSD which consists of spaces and : (column)

I'm working on a tool that can copy the registry files from a designated drive or image onto a local machine. After doing that, how would I go about reading from those registry keys? I've seen other people use RegOpenKeyEx but that was on their computer and not an external …

Two applications, two different problems. Both of these applications worked perfectly in the test environment with SSL authentication turned off. Now that we've moved to a live environment, the applications can no longer connect to the client company's ActiveMQ messaging queue. using dlls from Spring.Net version 1.3.1. Connection string uses …

I'm at the very last bit of this project. I think i am confusing myself at this point. I need to do one last function called showCost. The function is to print the total cost and the average cost. I'm at a loss one how to do this. Wonder if …

Hey Guys, I Want to Display Content of Database Into TextBox, i.e. i have column named "Ename" in "EMP" table of database1 , now i want to display "Ename" in TextBox of my form , so, how can i do this ? Thanks In Advance

i want to write a program which display alert message whenever 15 mins are over.But i am not finding solution of my problem using waitforexit() or delay() functions. [CODE] #include<time.h> #include<stdio.h> #include<dos.h> #include<conio.h> void main(void) { time_t timer; struct tm *tblock; time_t t; //timeout=18000; /* gets time of day */ …

Im a beginner at Python and I have written a program consisting of three functions and now Im stuck when I need to 'call' on them at the bottom of the program. In the 1st and 2nd functions I get some information and saving it to a file, but the …