1,089 Topics
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| | Design a CPU Timer class (you may name it CPUTimer). This class should allow the user to start timer, stop timer, compute delta time and print the lapsed CPU time of any block of code in a program. #pragma once #include <iostream> #include <cmath> #include <ctime> #ifndef CPUTimer_h #define CPUTimer_h …  |
| | Hi, When a user registers on my site there status is 0 (not active) ... meaning they not activated there account via email. When they register i also store the DATETIME they registered, i store it in MySQL using MySQL DATETIME and using `NOW()` in my INSERT query on registration. … |
| | I'm doing a lesson that is supposed to demonstrate inheritance using the song Old MacDonald; there's an animal interface, a farm class that implements each animal object.. you get the idea. I've got two problems. First, The animal has a type and a sound, for example, a chick is [code] … |
| | Hi, I'm a pretty new Java student and I was just confused on a few basic concepts. What exactly is the difference between public and private classes and in which case would you use each one? also, what is a constructor, mutator, or accessor? Thank you. |
 | Hi, I have recently finished first game in C++ which has huge code which will be fixed in future who knows how many times. It is really not practical to publish entire .exe launcher as fix, but I heard that it isn't case with DLL files. I could simply create …  |
 | Hi. I'm making a shooting game and since my code was getting a bit messy and big I decided to divide it into couple of classes and files. I'm confused of how to correctly split these files and classes up though. As I imagine it without really knowing if that … |
| | Yes, I know that this is homework. But I need help. This is code the teacher gave us few days ago. This is a header file. And I needed to do the following: My problem is that I didn't know how to use my vecetor in my .cpp file. How … |
 | Program: #include <iostream> using namespace std; class Rectangle { float len; float bre; public: Rectangle() {cout << "Rectangle constructed!" << endl; len=0; bre=0;} ~Rectangle() {cout << "Rectangle destructed!" << endl;} void setL(float L) {len=L;} void setB(float B) {bre=B;} friend float area(Rectangle rect); }; float area(Rectangle rect) { return rect.len*rect.bre; } …  |
| | I am getting an error during the build stating: "Illegal call of non-static member function" and I cannot figure out 1) what does this mean, or 2) how to resolve it. For detailed clarification, I will type out what the assignment was (I say was because the assignment was due … |
| | I am trying to figure out this one out. The directions: Write a class named car in the following fields: [LIST=1] [*]yearModel - The yearModel field is an int that holds the car's yea model. [*]make - The make field references a String object that holds the make of the …  |
| | So, I'm a bit confused with how inheritance works in relation to variables. Let's say that I had the following class: class Test { private: int var1; float var2; public: void getInfo(int,float); void setStuff(int,float); }; Now, let's suppose that I wanted to derive a class from that base class; I … |
 | Hi again! I was hoping someone would be kind enough to throw some advice my way here. I'm working on an application (still) that I would like to provide "Wizards" in. I have a general idea of how I would like to implement something like this, but staying in line … |
| | how would you write this function in non oop [CODE] def highlight(self, seq): if "highlight" in self.textWidget.tag_names(): self.textWidget.tag_delete("highlight") i = len(seq) idx = "1.0" while True: idx = self.textWidget.search(seq, idx, nocase=1, stopindex='end') if idx: idx2 = self.textWidget.index("%s+%dc" % (idx, i)) self.textWidget.tag_add("highlight", idx, idx2) self.textWidget.tag_config("highlight", background="yellow") idx = idx2 else: return … |
| | I've followed a tutorial where a Person class was used to illustrate the difference between class and instance variables. Something like: [CODE] class Person(object): population=0 def __init__(self, name): self.name=name Person.population += 1 print 'current population', Person.population Sally=Person('sally') Joe=Person('joe') [/CODE] This example really illustrated the difference between class and instance variables … |
| | Here is my code: [CODE] #include <iostream> #include <string> #include <cstring> using namespace std; //() char openedP='('; //open ( char closedP=')'; //close ) //end () //dash char dash='-'; //end dash class PhoneNumber { int countryCode; int areaCode; int number; char type; int year; public: PhoneNumber() { countryCode = 43; areaCode …  |
| | I want the program to compare what the user puts in and then compare that string to something in an array and see if it is a match. Here is code for things already put into array [CODE]private static void createExistingUserData(Scientist[] scientist){ scientist[0] = new Scientist("user1", "password1"); scientist[0].setDob("02/02/1995"); scientist[0].setSsn("612-45-7070"); scientist[0].setApplicantName("Peter … |
 | One of the most important things to understand when automating office, is that it's heavily [search]OOP[/search], and therefore you are forced to work with objects. In order to create an object that is external to your application (for example an office application, whereas a button or textbox would be internal …  |
| | Hi, experts: I am very to c++, and here is a program that should: • create a Customer object– (although you will only be using one constructor here, be sure and test all three) • Display the Customer’s info using the ‘get’ functions • Ask the user how many months … |
| | The code can do the talking. main.cpp [CODE] #include "test.h" #include <iostream> #include <string> #define NL "\n" //"NL" = "New Line"(move the pointer to the next line) #define SL "\n\n" //"SL" = "Skip Line"(move the pointer 2 lines) int main() { Cool_Object.cool_function(); return 0; } [/CODE] test.h [CODE] #ifndef TEST_H … |
| | So my instructor assigned us to create a program that calculates the area and stores that, along with coordinates, in an array. This has to be done for both triangles and squares. He is having us use separate classes for the project; the main Drawer class, parent class, square class, … |
 | Hi, I coded some web applications (blog, message board) all in procedural way, and now I want to start doing all that with planing and clean and extensible code. I now that OOP is the way, I checked MVC system of programming, and everything seems nice. I already know syntacs …  |
| | Hi All. I'm getting to grips with OOP (slowly) and I was wondering how you go about applying general functions to classes. For example, if I have a few general functions - this is a silly example, but should give you an idea of what I'm asking: [CODE]function strBig($str){ return … |
| | I am really struggling with a Python classes project. Here are the directions Design and implement a class called Dog that contains attributes (data) representing the dog’s name and age. Define the Dog constructor to accept and initialize that data. Include one method that will reset the dog’s age, one …  |
| | Hello, basically I am making a program which uses OOP to draw objects onto a canvas and they constantly move, I am making a feature which will save the position variables as the objects move each time and then once a file is outputted it can be read again and …  |
| | This is the project I am reading from . [url]https://github.com/sasatomislav/PHP5-OOP-Cart[/url] [CODE] class Cart { <snip> private function __construct() {} /** * Fetch Cart instance * * @return Cart */ public function getInstance() { if (NULL === self::$_instance) { self::$_instance = new self; } return self::$_instance; } } <snip> // initialize … |
| | Hello all. Can i get some help with my homework please. Im quite literally staring at a blan screen with very little done. Ive been quite sick recently and lost ground with the class. Ive watched You Tube videos and read oop books but to avail. I have to make … |
| | Hi all, I have started finding lots of uses for abstract classes to define interfaces for common functionality using polymorphism and i know that using polymorphism and virtual functions incurrs some additional call cost of functions. So what im wondering is can i get the best of both worlds? consider … |
| | [CODE=java]import java.util.Scanner; class Sum { private int value; public int get() { return value; } public void set(int sum) { this.value = sum; } } class Summation extends Thread { private int upper; private int lower; private Sum sumValue; public Summation(int upper, Sum sumValue) { if (upper < 0) throw … |
| | Hello to evryone my name is Dany and I want to get involved as volunteer in web project that is based on php mysql xhtml html css or any other web thenologies with the ondition to have php in it. Any advice or contact with developers that need help is …  |
| | So my code is suppose to get information from the user and figure out how much funding the two professors get. My code runs twice but for some reason only the last entry is saved and outputted and my formula for calculating the new funding only outputs zero for some … |
| | Hi all, I do not know PHP at expert level. I have an admin panel which has index file coded in OOP which does not open the admin_home.php. When i give admin username and password to login, it logs in and takes me no where and shows the same log …  |
 | i am a bit confused.i am feeling that one should be expert at data structures rather than language.i am learning c++ this semester,learning oop and data structures.[COLOR="Red"]is data structures more important than language?[/COLOR]what can get u into a good company?  |
| | how can i implement a function ex: 'add item' without using oop ?! |
| | Hi all, I'm working on a school project and I am running into a problem, possibly more... This is my first post, so I am sorry if it ends up ugly. Here is a description of the project: This project focuses on demonstrating your understanding of classes and objects. Before …  |
| | Need help with implementing a pure abstract class via inheritance, using namespace to wrap all my classes to avoid conflict with others. I have been able to build and run the code successfully if I remove namespace wrapper from my abstract class and all classes that inherit from my pure … |
| | Hi every1! Thats my code that used to work before I've added some attributes to my items. [CODE]void manager::EditStockItem() { ListStock(); { string z; bool found; cout<< endl<<"<===================================================>"<<endl<<endl; cout << "Enter ID of the Stock Item you want to edit" << endl<<endl; cin>>z; found = false; vector <Item*>::iterator iter = … |
| | I'm trying to read in the following text file: Jim Nasium mgr Fitness & Leisure 45000 Lazy Susan mgr Home Furnishings 55000 Gene Theory mgr Fine Jewelry 10000 And I have the following code: public abstract class Employee { private String name; private double grossPay; private double netPay; private final … |
| | Working on this program that uses 2 classes and a client program to test them, I keep getting this error pointing at my constructor, not sure what i am doing wrong but could use some assistance if anyone is able to offer, the error i am getting is: cannot find … |
| | Hello I am a new to C++ and have some questions. I have two classes called Point and Square like this: [CODE] class Point { int x, y; public: int getx() const { return x; } int gety() const { return y; } Point(int a, int b) { x = … |
| | Hi. im kinda new here . i just want some help with this code i cant seem to figure out my problem, i already declared a constructor but it keeps on saying cannot find symbol when i compile it -_- import javax.swing.JOptionPane; import java.io.*; public class Sample_Thread { public static …  |
| | I am working on this assignment in my java class, and am running into a few problems. Basically there are 2 classes and a main/client program that tests the classes. there is 1 superclass and a subclass that extends the superclass.. I have 2 constructors in my superclass but when …  |
| | Hello All, I'm trying to create three independent animations that all occur in one main frame. I have to use the following methods in my code [CODE]--- Animate --- public interface Animate { void move( double x, double y); void changeConfiguration(); } --- Drawable ----- import java.awt.Graphics2D; public interface Drawable … |
| | Hello! What I'm trying to do is allow a user to create a database and tables by supplying the database and table names through text fields. It is pretty generic unsecure at this point but I'm just trying to learn it currently and I am the only one that is … |
| | I'm working on a homework my OOP class and I just can't figure out this last part. The assignment calls for us to write five different classes with parent class StaffMember. I'm pretty sure I've that at the subclassess (Volunteer, HourlyEmployee and FullTimeEmployee) correct so I'm not going to post … |
| | I've been going through a couple of tutorials on SDL and having moderate success. But this one has me stumped. The tutorial from LazyFoo.com has me creating a dot that emits sparks. I followed along and wrote my code which returns my .bmp as NULL. Hmmm, I must have done …  |
| | hey fellow PHP developer, Is there any way we could protect our PHP source code from being modified after a 3rd person receives the code? I had developed a web application and when i give the source code to another person i want it to be write protected. Currently i … |
| | i am making a board-game in C# under .NET (i am new in this) now i am at the design stage in my game there are four resources - food, stone, gold & wood - that uses for gathering, buy stuff etc. like in a classic strategy game (age of …  |
| | [B][I]Hi I wanted to ask a quick question. I have two classes. And within my main class i am able to pass in variable to three variables EyeColorR to EyeColorB and able to send them the my Eye Class under the consturctor class Eye. the catch is I need to … |
| | I began doing some research on Paypal API code yesterday and have been lookin through a lot of the examples on the web. A lot of the examples i'm seeing seem to be heavily OOP. Ive never really tried any object oriented type of code I mainly do procedural. Can … |
| | I wonder why they use private constructors.when I was navigating java documentation I found alot of classes with private constructor.Would you tell me what are the benefits of writting them. |
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