Software Development Forum

Hello guys, I'm selfstudying C++ and atm am reading about classes. I want to define ostream operator<< but compiler cant find ostream to be regular use. I'm using Visual Studio 2005 on XP SP2 and have MSDN installed. And another question - am I using proper initialisation for operator<< ? …

Hi everyone, anyone got a solution to this problem; some floating point arithmetic do not return the correct answers in Java one of such is subtracting 0.8 from 0.9; you would expect to get 0.1 but u get 0.09999999999999998. No one should tell me about trying bigDecimal because that does …

Does anybody know how to create the login page by using Java and MySQL? The login page is contains the username and password, then after check the database, if the username and password is match, then user can login to the main page. Anybody have any idea on it? Or …

Is there an algorithm in C++ to determine the digit located on a given place value of an integer? For example, 9 would be outputted as the tens value of 196. If none exists, is it possible to code it? If so, what are some of your ideas to do …

Hiya gang. I am currently in need of help (again! Bollocks!). Currently, i am unsure of where to start because, well, quite simply, I am not that smart. The problem is as follows: [I]Develop a program that will solve the transcendental equation x = cos(2x) to within +/- .0001 radians. …

This has me a bit stumped but I must be doing something wrong here, if you don't mind checking this for me would be greatly appreciated. [CODE]int main () { int input; cout << "Enter a positive intiger to determin if it is odd or even (-1 to cancel): "; …

Okay, suppose I have a class A and subclasses B, C, D, E, F, G. I have a function: [code] public void foo (A object) [/code] I have the default function handler which handles A objects which aren't subclassed, and the B, C, and D subclasses. Subclasses of type E, …

Hi.... I'm a beginner at this programming thing and I need some help using nested for loops this is an assignment i have to do for my class, basically the output should be something like this.. the characters depends on what the user inputs and how many rows the user …

i have assignment on java class. plz help me the assignment problem is:Create a class Rectangle with 9 methods: 2 constructors, 3 mutators, 3 accessors, and area. plz help me.

i have this code where i have to take user input of sales and display it as a chart. (see code/sample run below) my problem is if the user enters like $923.89, it should round down to $900 -but with the code i have, it moves it up to 1000. …

Dear all, Does someone know how to connect to SQL Server by using Remote Method Invoke (RMI) ? I have project from my lecturer to create program as its connection to database uses RMI or socket. Thus far, I only know to connect to database by using OLEDB and ODBC. …

Alright I have been working on this game for like a week or 2 now, but I am having some trouble towards the end. Heres the code I have gotten so far: [code=c++]#include <iostream> #include <ctime> #include <cstdlib> using namespace std; char play; int guess; bool done; int noOfGuesses = …

I am working on printing a loop statement. I worked on this to try the concept: [code=cplus] #include "stdafx.h" #include "stdio.h" int main() { int times,num; for (times=1; times<3; times++) { for (num=1; num<5; num++) { printf("%d",num); } printf("\n"); } return 0; } [/code] What I need is to print …

Hello! I've run into a slight problem with my script. As I iterate through a list of strings, I need to print each string, but they all need to print on the same line, so I used this: [code=python] for item in myList: print item, [/code] The comma puts each …

I need help with a homework assignment. The assignment is to take a paragraph from an infile and change the words French into Freedom. Also when the phrase "an arbitrary end point" is seen I need to end the paragraph. And also if an integer if present the integer needs …

I am trying to compile my program and I am getting alot of these errors: [CODE]Parser.cpp:9: error: stray ‘\200’ in program Parser.cpp:9: error: stray ‘\231’ in program Parser.cpp:9: error: stray ‘\342’ in program[/CODE] That sequence of three lines just keeps repeating and repeating. These are lines 8 and 9 from …

Can someone run my code template to see what's wrong? [code=cplusplus] #include "stdafx.h" #include <iostream> using namespace std; int _tmain(int argc, _TCHAR* argv[ ]) { int a = 40; //No. of hrs worked during week float b = 12.75; //Pay rate: dollars per hour float c = 510; //Weekly wages …

Hello guies please help me how can I typecast string to char

[COLOR="Red"]Im using the Dev-Cpp compiler. Im trying to create a program like the one below...[/COLOR] [CODE]#include <iostream> #include <windows.h> #include <stdio.h> #include <iomanip> #include <fstream> #include <stdlib.h> using namespace System; using namespace System::IO; using namespace std; int main() { string *com2; wchar_t com; char loop; loop = 'a'; while(loop = …

Hi I have a program that has a JTree that lists of all the directories on my computer. I also have a JList in and an add button. Now I am trying to select or highlight a directory in the JTree, click the add Button and then update the JList …

Can anyone tell me why I'm getting "number 1" as my output when i enter arguments 1, 2, 3. It seems like its always 1 and I don't know why. [CODE]int main(int argc, char *argv[]) { if (argv[1] = "1"){ printf("number 1"); }else if(argv[1] = "2"){ printf("number 2"); }else if(argv[1] …

hi guys, i need to have an ide for assembly development on vista 64 bit operating system. i am a newbie for the assembly language. any helps will be appreciated. thanks

Hi folks, Due to being unable to find a suitable app, i've decided to make a little app (with the help from my trusty DWeb chums) Currently i'm looking at a little app that will allow me to enter a username and password for... whatever purpose really, map drive, shared …

Hi, I'm reading a bitmap manually to try and make a program that does steganography, but I can't read the file correctly. The headers I read come out completely messed up, and they fail the check to see if I'm reading a bitmap file or not (if (FileHeader.bfType != (int)"BM")). …

# If balance is private,[B][U] what is the upper bound on the number of lines of code [/U][/B]which must be examined to make the change to the Account class? \ What is the "upper bound on the number of lines of code" referring to?

evaluate a given postfix expression containing some one-letter integer variables a-z (in lower case) whose values are given in a data file. the name of the data file will be : c:\\temp\\375_prog4_stack_data.txt and you can hard code this name in your program. there will not be more than 26 different …

I think i am going to use mode 13h VGA graphics. But I have a few unanswered questions about it. 1) What does it mean by there are 4 planes, what are those planes, and why do they exist? 2) For an operating system, would the computer be turned into …

I am trying to write a program to store booking info for TV feeds. Most of the program is working fine, it stores all the info I need. One field is duration of feed which I am at the moment adding manually but it would be much nicer if I …

Alright, i hope someone can give me a straight answer. How do i export integers to another function? Because when i compile and run this code, i get an error telling me: "[code]12 D:\test.cpp `numberr' undeclared (first use this function) [/code] The code i used was kinda like this : …

Hi friends, I need a programme or procedure which is capable in generating IP or computer name of the system( on which programme is running). Thank you

Hi i did a shell script. This script is configuration for voip gw's. But i dont upload this output file ( example = ****.ini ) from gw with telnet and commands. how do i need ? This script must be telnet and put confguration mean must read my output file …

i have this function f(x)= e^X-3X^2 I need to write a computer program that find all three roots by the use of newton raphson method and option of finding a root by use of fixed point iteration. this is all i came up with so far.. i need help... [code=cplusplus] …

I am a new student in the area with very little programming experience. We are working with arrays in our vb.Net class and I am coompletely lost. Our program has to look up part numbers in order to improve customer service. The user has to enter the part number and …

"Write a program in MIPS assembly language which reads two integers a, b, calculates a^3 + 3ab^2 + 3a^2b + b^3 and outputs the result." My question is, how do I calculate powers of things in MIPS? Also I think I probably need to simplify that equation first...does anyone know …

hi guys i like to open as many frames user wants to open, i mean they can keep clicking the button and i like new frame keep opening. so this is something i got, now i know i have to use int to keep track of how many frames are …

1.Write a class called Student. Data members: name: String; age: int; major: String. Methods: constructor with 3 arguments that initializes all data members; print(): prints all data to stdout in one line, align the printed items in colums, no newline at the end; println(): same as print() but with newline …

I'm writing a C++ project using OpenGL in Microsoft Visual Studio 2005. I already have code for importing a jpeg image, but I don't know how to place it on a plane in 3D so I can view it in either ortographic or perspective projection. Also, how do I set …

I have an assignment in Modular programming.. Have been able to make the program work... the lil problem am having now is that when i try to load the file i created, it keeps adding the memory location. Moe like it's adding an additional data insead of just loading the …

Hi there folks. I have an app that has several classes but for some reason one of these classes isn't giving me a return value. What I want to check is whether or not this code will return the expected string... [code] String seatLayout; public String showAllSeats(String flightNumber){ fn = …

i was wondering if anyone could direct me to a good beginners book for C# that is good for beginners (basically 0 programming exp) as well as free. I downloaded the free version of visual C# express edition and was hoping to find a very beginning guide of programming with …

somebody please help me.. can you tell me about struct in C++.. please give me example and explaination..

Hi folks I am new to C++ i tried to reverse the characters in an array [code=cplusplus] #include <iostream> using namespace std; int main() { char kavi[]={'s','w','o','r','d','\0'}; cout<<kavi<<endl; cout<<"now reversing the word"<<endl; int i; while(kavi[i] != '\0') { i++; } cout<<"Length is"<<i; int j; for(j=10;j>=0;j--) { cout<<kavi[i]; } } [/code] …

Hi all, I am working in windows based application. In this application, a form contains 11 panels as 11 rows. I mean 11 panel as one by one. Each panel consits 11 checkBoxes without text only checkBoxes. if I check any one of the checkBox in any row, i need …

hi everyone..i need to crack a symmetric key by implementing a method called CrackSymmetricKey I must use the TEA encryption algorithm below: [CODE=c++] union myMsgType{ unsigned long textConverted[2]; char text[9]; }; class TEA_Algorithm { public: void CrackSymmetricKey(union myMsgType plaintext, union myMsgType ciphertext); void Decrypt(unsigned long k[], unsigned long ciphertext[], unsigned …

I am working on a project that requires the main system, EmployeeSystem to be able to open a file with JFileChooser, and then write to that file, run a payroll system on it, and search it for a particular employee using a directory system. I am struggling right now to …

Hello, I am creating a program that will allow me to calculate taxes on a pay. Since the amounts deducted are not straight percentages, there are close to 5600 different options, based on the gross pay amount. I am wanting to make the program as versitile as possible, so I …

I've just started learning c++ this week from the book, c++ from the beginning by jan skansholm, im working througth the exercises and have become stuck on this one: sin(x) = x - x^3/3! + x^5/5! - x^7/7! + .................. write a program to calculat sin(x), dont include terms in …

can someone explain in simple terms how to actually use the following <ctime> functions? I have read thru a few C++ reference websites but the explainations given are very vague and complex. [B]difftime struct tm time_t mktime ctime[/B]

I have a little problem to dock a grid with a panel. What i have done is to first dock a panel in the top of the form. What i then want to do is to dock a datagrid so it Fills the whole form but not so it will …

I am writing a vb program to print out fragrances for this auto center. my program is working fine, but i am having trouble writing a for/next loop to print out the interior and exterior lists. the printout has to contain the package name, the interior and exterior items included …