462 Topics
 | |
| | Hi Guys Could you explain me why adult education classes are mandatory for childrens?  |
| | hi, done some work is not finished yet but this two versions\stages are runable. and what is very helpfull, to read opinion, suggestion, critic, ideas, feelings about. here is the link: http://softwareconstructor.webs.com/ and i need to read what u think about two firsts: * tryout2 (10bm) * and tryout1 (190mb) … |
| | Okay so I have a class `Student`, which takes a number and a vector as a parameter for the constructor. Everything works well, until I output the values of the vector for every instance. The problem is that the same vector is being shared with EVERY instance I create, but …  |
| | Okay so inside my ArcherArmor.cpp, I'm trying to figure out why the map initializer list isn't working, but for some reason I keep getting "Error C2593: 'operator =' is ambiguous". Here is my code: I also have a class which ArcherArmor is derived from, that has a struct called `Armor`, … |
| | Okay so I have an `inventory` class that accesses a static vector from my base class `MainShop`. I also have a `SwordShop` class which inherits from `MainShop`. (Both Inventory and SwordShop are derived classes). //SwordShop class void SwordShop::Shop { //I have a setter function where it takes an integer and … |
 | I wish to use parameters in a class to change what the class displays how would this be done?  |
| | I have these few lines in a class in my program but it doesnt appear. No errors are shown and when i "print(menubar)" and address "0.4.." or "4..." appears menubar = Menu(master = self.mainGUI) fileMenu = Menu(menubar) fileMenu.add_command(label="Exit", command= destroyMethod) menubar.add_cascade(label="File", menu=fileMenu) destroy method does work and is existing. |
| | Creating WinAPI windows and controls can be a pain and quite difficult/annoying at times. Most of the time, I find myself searching MSDN, DaniWeb, and StackOverflow. I hate having to use external libraries unless I absolutely have no other choice. Below contains code for creating WinAPI windows, Controls, Sub-Classing, and …  |
| | # Introduction # The subject of this tutorial is a bit more advanced than the subjects I have tackled in the past, but I hope this will find some interested readers. From time to time in C++, programmers find themselves torn apart between using a *Generic Programming* style which primarily … |
 | package hw3.categories; import java.util.ArrayList; import hw3.DiceGroup; import hw3.api.IScoreCategory; /** * Scoring category for a yahtzee. A DiceGroup * with N dice satisfies this category only if all N * values are the same. For a dice group that satisfies * this category, the score is a fixed value specified in …  |
| | The title says it all but I am curious if it's acceptable or even efficient for that matter. If others were to read my code or work on a project with me is this generally accepted among others or yourself if you work on an enterprise level? Is this memory …  |
 | Hello, I am working on an event driven library and am having one minor problem. Basically I have two ways to get what I want done. Method 1: Smart pointers and factory functions #include <iostream> #include <vector> #include <memory> using namespace std; class Object { public: virtual int getInt(){return 0;} … |
 | #ifndef BASE_H #define BASE_H class Base { public: int m_nValue; Base(int nValue=0) : m_nValue(nValue) { std::cout << "Base" << std::endl; } }; #endif #ifndef DERIVED_H #define DERIVED_H #include "Base.h" class Derived: public Base { public: double m_dValue; Derived(double dValue=0.0) : m_dValue(dValue) { std::cout << "derived se" << std::endl; } friend …  |
| | Hello, I am having a particularly nasty case of "What is the syntax?" while working on an event driven library. Basically this is what I want: class Object {// private: public: virtual bool onEvent(Event e)=0;//all objects have to react to events Object operator|(const Object &o) { // I want to … |
| | #include <string> #include <iostream> #include <vector> using namespace std; class Person { public: Person(); Person(string n, string a, string tel, string em); string getName(); string getAddress(); string getTel(); string getEmail(); virtual string whatAmI(); private: string name, address, telephone, email; }; Person::Person() { } Person::Person(string n, string a, string tel, string … |
| | Hello, is this how a constructor is created and initialized. I am getting an error; VB does not like the "New" what I am trying to do is to create a constructor with one argument and initialize its attribute. Public Sub New(ByVal newProdNumber As Long) intProdNumber = newProdNumber End Sub … |
 | Hi, I do have doubt regarding const declaration in copy constructor. Can anyone let me know why do we need const reference in copy constructor, as we already know reference itself is const pointer.So why we should use const as a prefix in copy constructor. Regards, Mohan  |
| | I'm trying to create a list stack that implements some interface called SomeList The list stack should only use stack with no links. the itnerface has a number of methods that I would like to implement. So for SomeList I have something like public interface SomeList<T>{public void plus(T something);public E … |
| | Hi, Is there any way to not allow private construction in friend function, In case we do have private constructor with friend function in our class.Only Static method should be responsible for object creation and other than this compiler should flash error message. #include<iostream> #include<memory> using namespace std; class a … |
 | Hello, I am developing a site where I have once class file that deals with a few database tables. My question is: Is it better to have one big file (the class) and then require only this file or have a class for each table and then have more require …  |
| | I'm having trouble pinpointing the exact definition of a generic linkedstack class Suppose I have public class LinkedStack<T> { //some variables //would this be right LinkedStack(){ } //for a generic constructor of type T for the LinkedStack class of type T? } |
| | Hey guys, slightly less noob programmer here for a some more help, This week in class we were assigned to create a phonebook with a couple functions to manipulate it, but it seems I am having a couple problems. It seems to me that I have most of the program …  |
| | Hey guys i am having trouble with creating a Parent class(gameobject) for two other child classes(player,location) both of the child classes can access data from the parent class, and work well independently but once i include the h file for the child classes together in main.cpp i get the compiler …  |
| | Hi Guys, I am trying to teach myself templates and I keep getting lost in all these compilation errors. Here is the latest // This is the interface for the base class template<class V, class I =int> class Array{ private: vector<V> myStore; public: Array(); Array(I size); Array(I size, V value); … |
| | Hey guys, noob programmer here. Over the last week or so we've been learning about classes and inheritance in my latest progamming class. I've recieved a variation of the ever so popular poker program and am having some problems putting it all together. I haven't had the opportunity to test … |
 | I'm afraid to ask this on SO because all I can get is down-vote so I ask it here.* ## **Question:** ## Does C/C++ compiler (e.g the popular "gcc") with OO concepts allocates/creates all data member if other data member are not in use? /************************************* * code for example: * … |
| | So! I'm building a GUI for an application I'm currently developing and I'm having a bit of trouble figuring out an issue. I'll try to explain it as best as I can in the code lines. Basically, I built a class to handle the initial window for the program, but … |
| | Ques : Define the class Book with all the basic attributes such as title, author, publisher, price etc. Define the default constructor, member functions display_data() for displaying the Book details. Use appropriate access control specifiers in this program I have done some part #include<iostream.h> #inlude<conio.h> using namespace std; class book … |
 | |
| | [B][I][U]Introduction [/U][/I][/B] [COLOR="Red"]Hey everybody welcome to a tutorials on classes in PYTHON. The purpose I made this tutorial for is that when I was learning classes in python I dint found any good tutorials on Classes. Maybe I was wrong. But here's my tutorial.[/COLOR] [B][I][U]Layout[/U][/I][/B] In this tutorial i'll be …  |
| | class name { char *s; int len; public: name(){ // Default constr. s=NULL; len =0; } //************************************************** ~name(){ // Destruct. if (s!=NULL){ delete [] s; s=NULL; } } //************************************************* name(const char * s1); // Constr. char* getName(); //fcn get name int getLen() ; // fcn get lenght void setName(const char …  |
| | Hi All, I have just finished reading fundamental topics in Java and now i have decided to do a New Project in Java which comprises all basic features of Java. I need help in Understanding/visualizing the architecture / Design model for my Project. Specification is : 1 . Develop a …  |
 | I have the following structure: CObject { protected: char *mName; public: CObject(char *n) { mName=strdup(n); } }; CVector:public CObject { char *mValues[50]; int mElements; public: CVector(char *n):CObject(n) {} }; CMatrix:public CObject { char *mValues[50][50]; int mLines; int mColumns; public: CMatrix(char *n):CObject(n) {} }; My main function: int main() { pV=new … |
| | Hello, I have a chain of inherited classes like this: class A { protected: int a; public: int getA(){return a;} }; class B:public A { protected: int b; public: int getB(){return b;} }; Based on that you can see that the public can only read the values in those classes, … |
 | am a python beginner, receeently started learning about classesand i wrote this got this little code that keeps bringing this error . please i need someone here to help debug it: class employee(): ` empcount=0` def _init_(self,name,salary): self.name=name self.salary=salary employee.empcount=+1 def displaycount(self): print 'Total employee: %d' %employee.empcount def displayemployee(self): print … |
 | Traceback (most recent call last): File "C:/Users/James/Desktop/hugevar.py", line 2, in <module> class var(tempfile.TemporaryFile): TypeError: Error when calling the metaclass bases function() argument 1 must be code, not str Why does this happen and how can I fix it?  |
 | Hi all, I've been playing around with PHP for a while now and never really studied hardcore (Just used it as best as I could on a whim) but I've now decided to sharpen the skill and get much better. I'm playing around with my first class and would like … |
 | hello, I just had a quick question on my program. I'm trying to perform an elevator class program to simulate an elevator that has 3 stops. The only problem is that I can't figure out how my floors increase or decrease, it just increases by one. Here is my code: … |
 | Hi All, I have created an application that allows a user to select a diectory, where we parse the photos, and upload to a database. The issue that I am having is that I have a button on the form found in the newJFrame.java class called upload that when pressed … |
| | Hi, Please tell me in the following question why no copy constructor is called when fun returns the A object. While returning b and constructing c, there is no copy constructor called. Why?? #include<iostream> using namespace std; class A { public: A(){cout <<"Default\n";} A(const A&){ cout<<"copy\n"; } A fun(A a) … |
 | |
| | Hi. I have some css that needs to go into a large amount of websites. It generally contains very simple like all new elements with very unique names that will not be matched by anything these websites currently contain. The problem I am having is that some of these sites … |
| | Hi All I have a query regarding constructor and destructor. How accessibility of constructor and destructor affects the scope and the visibility of their class. If someone give some explaination on this I will be thankful. Regards |
 | Hey there, I am getting used to Java, but here is something that is stumping me: // Fig. 3.10: GradeBook.java // GradeBook class with a constructor to initialize the course name. public class GradeBook { private String courseName; // course name for this GradeBook // constructor initializes courseName with String … |
| | So basically im creating this python adventure text game. And so far its good. But i have this problem with class instances(Is that the right term?) Say for example i have this class, class monster(object): def __init__(self,health,attack): self.damage = damage self.health = health So then I create a class object(again, … |
 | Hi chaps, I am looking for a not too difficult exercise which involves superclasses and subclasses (the java book I am reading doesn't really have any good one). So I was thinking about something like this: Create a superclass 2DimensionalShapes and 2 subclasses Rectangles and Triangles. I will then need … |
 | Essentially I have two header files, one called 'ACYDTypes.h' that contains the classes for the basic types of this system and the other called 'Settings.h' that contains function for general settings. In the Settings.h file, there is a namespace called 'Ac_Type_Settings', and within that is a class called 'AcTypeSettings'. This … |
 | I want to write a program in c++ language to define a class Bank_Account with the following members: Data member: - Accoount_no. - owner. - Balance. Member fenctions: - To assing intial values. - To deposit an amount. - To withdraw an amount after checking the balance. - To display …  |
| | Hi guys, I'm having trouble with my code and I'm kind of new in Java so I don't know what to do. I have to do a program with Buttons and each button has to take me to another class (I don't know if I'm being clear). For example if … |
 | Hi everyone. I am doing a USACO training assignment, and the instructions are as follows: > Is Friday the 13th really an unusual event? > > That is, does the 13th of the month land on a Friday less often than on any other day of the week? To answer … |
The End.