Software Development Forum

Good day.. I'm having problem on how to store or create a table on my database using vb.net i'm having hard time to create a table on my existing dbase here my code; coould you tell me what's wrong!!! Dim ntable As OleDb.OleDbDataAdapter Dim mtable As New DataTable con.ConnectionString = …

Good day. I am having a trouble on how to update my reocrds on my 2 tables. 1 table is sample and the other table is tbl_educ. my sample table which has a pk of emp_id while the tbl_educ has a field of emp_id they are related by one-many relationship. …

I have just started learning Basic, and i know you can create command butons from the virtual environment, but how do you create (and, more importantly, let the user drag around) them from code?

Hello, I have this assignment I'm supposed to deliver tomorrow, I have most of it figured out, but there are certain bits and parts of the question I can't figure out... I'll show you what I mean, here's the entire question: [CODE]Develop two linked lists to manage the list of …

Hello everyone I've been trying to figure out how to make a joystick move a servo by using Arduino board, its software and Python with pygame module. But I can't just get the servo to move. I really wish someone can help me. This is actually part of my final …

The application has a screen size and resolution problem . What should be done since it looks very funny on desktops .

I am working on making a 'safetype' abstract class, which will have a complete set of pure virtual operator overloads to help make sure that a class inherited from it is safe to pass to virtual any function. The problem is that I don't know the syntax of a pure …

I'm learning C++ and just finished a tutorial on pointers. I understood what they were and how to use them but I do not understand when they should be used. When would it be practical to use a pointer to get a value instead of using the value's name? For …

I was assigned to make a int to binary converter. I made one and it work as it should however when attempting to make a char pointer and print the char array the pointer is pointing to it print weird character which I am guessing is the memory location. Am …

Well I am coding a small intermediate program to help me with learning c++ , and i am wondering how to check for blank input to cin >> string heres what i have [CODE]string name; cout << "Enter You're Name: "; getline(cin, name); [/CODE] and if i just hit enter …

I am working on making an error header file and this is what I have: [CODE]#include <stdio.h> #include <stdlib.h> #include <iostream> #include <sstream> #include <string> #define VANARGS(n1,n2,n3,n4,n5,n6,n7,n8,n9,n10,n11,n12,n13,n14,n15,n16,n17,n18,n19,n20,n21,n22,n23,n24,n25,n26,n27,n28,n29,n30,n31,n32,n33,n34,n35,n36,n37,n38,n39,n40,n41,n42,n43,n44,n45,n46,n47,n48,n49,n50,n51,n52,n53,n54,n55,n56,n57,n58,n59,n60,n61,n62,n63,N,...) N #define __VA_NARGS__(...) (VANARGS(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)) #define ERROR(...) (\ (__VA_NARGS__(__VA_ARGS__)==0)?"NONE":(\ (__VA_NARGS__(__VA_ARGS__)==1)?(_1(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==2)?(_2(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==3)?(_3(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==4)?(_4(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==5)?(_5(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==6)?(_6(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==7)?(_7(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==8)?(_8(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==9)?(_9(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==10)?(_10(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==11)?(_11(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==12)?(_12(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==13)?(_13(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==14)?(_14(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ (__VA_NARGS__(__VA_ARGS__)==15)?(_15(__VA_ARGS__,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)):(\ …

Q: A local company has the following monthly charges for snowclearing services: $250 for 0-5 visits $250 + $55 for each visit over 55 13% tax is to be charged in each case if previous balance is not zero, intrest of 4% of that balance is to be charged. theres …

I noticed that using a switch statement, the case always has to be a constant character or integer or it won't compile. It's sorta of a bummer as the only alternative is using a bunch of if/else if's. So doing something like this won't work: [CODE]switch(aString) { case "word1": doSomething(); …

Hi there, I am coding for an engine based on C that supports everything apart from arrays. Now what I want to do is this: [code] int Populate(int Amount, string TagArray[], float xLoc[], float yLoc[], float zLoc[], float Orient[]) { int AutoInc = 0; while(AutoInc < Amount) { int a …

Hi, for i in 84 85 86 87 88 89 90 91 92; do ./runCleanup Session 11${i}; done i tried as we do in perl like for i in 84..92; do ./runCleanup Session 11${i}; done But its showing error. what is the solution. Thanks, Deepak

Hello All, I am beginner to Java and am in the process of learning. I am currently focusing on understanding the Thread concept. Went through various materials available in the internet, but not sure whether I understood it(thread concept) clearly. Here is what I have written: A simple java applet …

I try to make an exercise that involves classes. I reached until this point [CODE] #include <iostream> #include<math.h> #include<iomanip> #include<conio.h> using namespace std; class Cplx { double re, im; public: //constructors Cplx(double x=0, double y=0); Cplx(const Cplx& z); //accessing the members double real() const {return re;} double imag() const {return …

I'm trying to close and application using C# and ASP.NET. I've tried system.windows.forms.application.exit() but it just refreshes the screen. I tried Environment.Exit(0) but that just ended the application and returned an error in the browser. Please help anyway you can!! Thanks!

I've been having a hard time understanding classes but i've got it mostly down(atleast I think) well below in the code I overloaded the + operator for my class called clr which uses strings, my problem is on lines 59 and 61(strcpy_s(tmp,len,other.buffer);) when I strcpy to tmp the word is …

Hi, I'm looking for a good book on Qt 4 programming, I checked both chapters and amazon but couldn't locate a Qt book with favorable reviews and was wondering if the daniweb members knew of a good text...Thanks in advance. Gerard4143

I want to write an server application that is connected to a client application or reverse , connected through unique IP address and port number that can perform period check or ping to see if the other is active. Normally, a ping request uses ICMP messages to check whether destination …

I can't seem to debug these run-time errors. help would be appreciated. [ICODE] Exception in thread "main" java.util.InputMismatchException at java.util.Scanner.throwFor(Scanner.java:840) at java.util.Scanner.next(Scanner.java:1461) at java.util.Scanner.nextInt(Scanner.java:2091) at java.util.Scanner.nextInt(Scanner.java:2050) at lab2.readFile(lab2.java:92) at lab2.main(lab2.java:79) [/ICODE] [CODE] import java.io.*; import java.util.*; class Customer { int account_id; char[] ch1 = new char[20]; String name = new …

so there's an argument about best practice for #include statements. many people put all the relevant #include <header.h> statements at the top of the .c source code. some people prefer to put the relevant #include statements within the .h header file that is associated with the .c source code consider: …

My professor has thrown me a curve ball with this next assignment. The assignment is to make a Monthly Accounting Statement, the program is to you structs and arrays. I get how you can have an array of structs, arrays within a struct, etc... I have the program mapped out …

I am using qcheck=all while compiling my makefiles. When I am running the binary file generated then it is converting integer to a double value For eq: 612 to 612.0 Can anybody help me to know the reason why? Regards, Ankur.

Hey guys, I need some help with this coding. I feel like it's something simple so hopefully someone can figure it out. I know for certain that it has to do with float-int conversion problems, and I feel like once I figure that out the rest should fall into place. …

3 months ago me and my classmates played with visual c++ 6.0. We made a infinite loop of numbers that kinda looks like the matrix thing. We changed the font of the cmd of c++ to green. Now the problem is I can't turn it back to normal. I tried …

Hi everyone! Is there a way/command in C to find a string that is contained in a longer string? I'm currently developing a C program in Windows that sends requests to a machine and gets its response through socket programming. The response is an image in jpeg/jfif format. The whole …

Hello, I have a txt file which contains data in this format: [CODE]cross-sectional study 21225114.txt prospective cross-sectional study 21225178.txt cross-sectional study 21225178.txt retrospective cohort 21225558.txt retrospective cohort study 21225558.txt cohort study 21225558.txt[/CODE] This shows what type of study each of the txt files have. Problem is some have more that …

Any consensus? I see advantages and disadvantages to both. For a socket listener, a background thread would be good I would imagine, if the server is attempting to close, it obviously does not need or want to accept connections and any connection that is in the process of starting should …

a) Output the date in multiple formats, such as i) MM/DD/YYYY ii) February 25, 2011 iii) DDD YYYY I'm supposed to do this: b) Use overloaded constructors to create Date3 objects initialized with dates of the formats in part (a). In the first case, the constructor should receive three integer …

I have created 2 menus using JForms. I have two buttons in the 1st menu (menu1.java) I want to go to the second menu (GUI of menu2.java) whenever I press button 1 in menu1.java. How can I do that. What should I write in the actionListener func for button1?

Hi Sir/Madam, Need your help again, i failed to do output display for the menu list from this code. Suppose the output have to come out with menu = item selected, tax and amount of item. [CODE] #include<stdio.h> #include<string.h> #include<stdlib.h> double price[8] = {2.50 , 3.45, 2.20 , 2.95 , …

Create a class called Student. This class should have the following twelve private data elements: String studentName String studentEmail String studentLocation int projectGrade1 int projectGrade2 int projectGrade3 int projectGrade4 int quizGrade1 int quizGrade2 int finalExam int participationGrades This class should have the following public methods: A get method for each …

I have two forms and i have retrive controls from one form to another. In form 1 Two controls 1 datetimepicker1 2 datetimepicker2 in form 2 1 Datetimepicker1 now i retrive form1 controls on form2 and i want to compare form1 datetimepicker with form2 datetimepicker. here is code: /[CODE]Form2 fr2 …

Could anyone please tell me how to Delete two Dimensional array Which i created early or Delete the contents of from specified index and i want to insert some other values in the same index..........

hi... i have given a code snippet below... though i check for nullability before i do the actual processing... it still throws an unhandled exception..... is there a way to handle this other than filling my code with try catch blocks.... [CODE]using System; using System.Collections.Generic; using System.Linq; using System.Text; using …

Hello everybody, For a school assignment I need to save images to .ser files. Could someone explain me how i get it succesfull. The program itself creates a .ser but the content is useless (¬í NUL ENQ). Thanks in advance :). This is the method i came up with: [CODE] …

[code=c] void Assembler :: pass2(ifstream &inHandle, ofstream &outHandle) { outHandle<<setfill('0'); while(!inHandle.eof()) { inHandle.getline(src_line,50); //declerative or imperative statement if(toascii(src_line[0])>=48 && toascii(src_line[0])<=57) { breakStatement(); outHandle<<address<<")\t+ "<<mnemonicCode<<" "<<regCode<<" "<<setw(3)<<operand<<"\n"; } else outHandle<<"\n"; } } void Assembler :: breakStatement() { int i=0,j=0; char oprCode[20],oprClass; ifstream in; //initializing all variables strcpy(address,NULL); strcpy(mnemonicClass,NULL); strcpy(mnemonicCode,NULL); init(oprCode); regCode='0'; …

Have been trying to learn from some old documentation that I bought several years ago but did not persevere with! Have Person class which compiles ok. The Employee class cannot find Person class in the extend statement, the BigCorp cannot find either the Person or Employee classes. All files are …

Hy, I want to use some ExpandBar items in my UI, like those in SWT. I am currently using swing and unfortunately I did not find anything like this yet. So, do you know the class in swing that I can use ? ... or any other advice is greatly …

I am making basic project for "Computer simulations of polymers and biopolymers" using Monte Carlo simulation and I currently have access only to ASUS eee PC netbook. Could anyone run attached program on a faster hardware for input data [ICODE]100 50 50 1000000[/ICODE]. Last part of data is number of …

Can anyone please give me a guideline on how to code the following? I have an MFC application which should call on a timer basis a python script from command line and read the ouput of that command line. I thought of using CreateProcess, but i have no clue of …

Hello, I have a CSV file like: 01,xyz 02,mux 03,mysite 04,mycarsite 05,etcweb I would like to write a cood the read this csv file and replace the password of the account as such to have formula that contains the numbers above. For example 01,xyz->mypassword01pad 02,mux->mypassword02pad 03,mysite->mypassword03pad 04,mycarsite->mypassword04pad 05,etcweb->mypassword05pad Thank you

Hi i keep getting an exception when i'm trying to update table values within a database. the exception is below but i dont change from datetime to varchar it always stay as datetime. is there any other reasons why this is happening ? "The conversion of a varchar data type …

I try to make an exercise from a book and I have only one error. On this line [CODE]cin >> t;[/CODE] it writes me that "more than one operator >> matches this operand" I know that defined this operand before in another way but I don't know how to solve …

Hi all, I have basic knowledge on perl concepts ... Now i am assigned with a task to automate software build installation process on windows please guide me in the following 1.what are the documents to refer for example scripts on automation 2.Should i have to install any thing else …

Hi, I need serious help with this code. So far everything compiles correctly but it does not output the correct change, and I've been trying for hours to figure out how to remedy the situation. All help is appreciated. This is what is being inputed: 4 1.00 .01 100.00 .01 …

Hi people, I have created a form that allows me to search customers from a datagrid table which holds the information from the customers table. I use a textbox to enter the phrase to search for and a search button. I can find the records within the datagrid table but …

I have trouble saving my numbers. I used an array for my saving feature. As you play the game, the computer asks you if you want to save a number. you say yes and you pick which number(s) you wish to save. My problem is, if i save 2 numbers …