1,089 Topics
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| | I'm writing two classes for the main program code. I'm stuck trying to do figure out how to instantiate an object of the class Address: [B]Address class:[/B] [CODE]public class Address { private String city; private String state; public Address() { city = "?"; state = "?"; } public Address(String aCity, … |
| | Hi, I have been practising some OOP and have encountered this error `" cannot resolve symbol - variable MyInput"` I wonder wat's wrong...here is part of my code: public class BorrowMortgage { //Main method public static void main (String[] args) { //Create one borrower Borrower borrower = new Borrower( ); … |
| | im making a grades program to try to keep my skills sharp. since i have gotten out of apcs i havent really been doing too much of anything with java. i decided the other day that i was going to try to make a grade program, kind of like what … |
| | Hi, I have a map of a base class object (not pointer to objects). I did this because I need to have inheritance from others types like this: Parameter RealParameter: Parameter IntParameter: Parameter ... My problem is that when I am going to insert in the map, copy constructur of …  |
| | hello every One.. ..can any0ne help me create a 'picture puzzle' using GUI.. OOP'. ..ur answerz r highLy apPrecited.. thankz have a nice day ahead' |
 | Is it possible to call a constructor if we entered know value in the output screen ??? example !! [CODE]import java.io.*; class Employee{ int num; static int count=0; float compensation; public void print(){ System.out.println ("Employee number: " + num + ", Employee Compensation: $" + compensation); } public Employee(){ num …  |
| | Hi folks, I am writing an application in C, but I have the OOP functionality that C++ provides. (i.e., I can only use C library functions). I have a function as follows in TSL1.cpp: [CODE] void TSL1_ExecuteTest (char *sCmdInt[]) /******************************************************************************* Name: TSL1_ExecuteTest Description: This function executes tests from current TSL1 … |
 | Hello everyone, I'm a high school student highly interested in computer science in general. I've already taken two Computer Science AP classes, both in Java. I took the Computer Science AP exam last year and got a 5 on it, so I'm OK when it comes to Java. Not too …  |
| | Hello DaniWeb, I'm relatively new to DaniWeb, and recently decided to come back to an attempt at learning to C++. I just finished reading a particular section on OOP etc. and i have some questions about pointers to objects: like: [CODE] MyClass *Object; [/CODE] Can someone please: 1) Explain why … |
| | I got to assignment first one was to print the data of two students using different classes and constructors and count the total numbers of records and i've done this. here is the program. [CODE]public class Student { int RollNo; String name; static int stdcount=0; public void print(){ System.out.println ("Roll … |
| | Hello all. First I have to let you know that Im a total newbie trying to understand Python using the book 'A byte of Python'. I'm following everything on that book and is been kind of fun until OOP (object orient programing). Im getting an error in most of the … |
| | Hello all, I have a question on the proper (OOP) way of gathering user inputs from multiple textboxes on my main Form and then using these calculations in various functions inside a class or two. I currently have a 1-D array of values that I have to name, and then … |
| | Hello Everybody... I am very new to VB.NET coding..My manager assigned me to write a Single Program that uses OOP concepts like Abstraction,Encapsulation,Inheritence and Polymorphism.As there is a time limit plese help me in this.............Thank You all..........CintoJose.  |
 | I just wanted to demonstrate a quick point regarding Constructors & inheritance. Look at these two classes and think about what you might expect to see after the main method has run. Notice that ClassB is a subclass (inherits from) of ClassA. So, what do we expect the output to … |
| | how OOPS concept playing roles in terms of compile time and run time polymorphism. how inheritance and encapsulation and polymorphism applied in real time application. when and where and how to decide this oop concept fit for this like java bean,interface,abstract,etc? |
| | hello people, i'm new here in Daniweb and very much interested in web development(Specially php,mysql,ajax based web applications). I know HTML and CSS, but don't have any past experience in any scripting/ programming language like javascript or c(though i know basics of C), java etc. Some of my friends suggested … |
| | It may seem like a simple answer, but how do I pass an image to a bitmaps constructor. for example: [CODE]Bitmap bmp = new Bitmap(########);[/CODE] what would I put in place of the pound signs If i wanted the default image to be C://Users/Me/Documents/Visual Studio 2010/Projects/MyProject/Image.jpg Please help.  |
| | I am rewriting in Visual Studio 2008 c++ an application written in VB.NET that successfully connects to an oracle 10g database using OracleDataAccessClient.dll. I am trying to utilize the same dll in the c++ app though very unsuccessfully. In the project's Property Pages, I have successfully referenced the dll. In … |
| | Hi! I have found this nice place while searching about C# on the net. I am starting to get a new profession at age 44 and will begin a 2 year education as system developer.net in August. I have worked with marketing, advertising and graphic design before and really enjoy …  |
| | I require some help with a program I've got to write, the theory behind it is based around OOP, but I'm having trouble grasping what exactly I should be doing. I'm not entirely sure how to call the addProperty method from the Property class, or even that I've written out … |
| | Hey there, I need some help with the placement of constructors and how the second constructor would work (there's two of them). All I ask is for some explanation. These are the exact instructions: The default Constructor should build a dynamic array of size 3 for the grades. Another constructor … |
| | take following class and two object definitions: [CODE=c++] class Rect{ public: enum centimeter; enum meter; Rect(double len,double wid,enum centimeter){ length=(len/100); width=(wid/100); } Rect(int len,int wid,enum meter){ length=len; width=wid; } //rest of implementation private: double length;//in meters double width;//in meters }; Rect obj1(10,5,Rect::centimeter()); Rect obj2(10,5,Rect::meter());[/CODE] two previous constructors have dummy enum … |
| | I have recently learned in school about the dreaded diamond.And I wrote a program using virtual inheritance to overcome the problems.I use g++ and I have the following errors with this program, [CODE]//doing to create an illustration for dreaded diamond #include<iostream> using namespace std; class vehicle { public: virtual void …  |
| | take two following classes and their constructors as samples: [CODE=c++] class One{ public: One(int a,int b):adad1(a),adad2(b){} private: int adad1; int adad2; }; class Two{ public: Two(int input[]){ for (int i=0;i<10;i++) araye[i]=input[i]; } private: int araye[10]; };[/CODE] considering objects with static storage duration, I think first constructor can be applied during … |
| | Suppose we have following two classes: [CODE=c++] class Temp{ public: char a; char b; }; class Final{ private: int a; char b; char c; public: Final(Temp in):b(in.a),c(in.b){} //rest of implementation };[/CODE] can we initialize an object of the Final class with following syntax in upcoming c++0x standard: [CODE=c++] Final obj(Temp{'a','b'});[/CODE] |
| | I have tried to create a simple class where the program passes a name and telephone number to my class type and then prints it to the screen. It tells me I have undeclared identifiers, but I am constructing my program just like an example we did in class. Can … |
| | hi guys what constructors should i use for this program? [CODE]using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace BACKUPEXEFILES { public class cCOPY { private string _directorypath; private string _filename; public string directorypath { get { return _directorypath; } set { _directorypath = value; } } public string filename … |
| | Hi, A bit of a tricky question, so I will try to explain everything in its fullest. I am trying to replicate some of the Terrarium work done by the Microsoft guys, but I dont want to look at any of their code. Anyway I have my base class which …  |
| | I'm about to write a new program in Visual Basic. I have Visual Studio 6.0, but it's limitations are starting to become a problem and I'm wondering about trying Visual Studio 2008 Express (unfortunately purchasing the full version is not an option). I would hate to get halfway through and … |
| | Hello everyone. This post will contain an amount of personal feelings within it. I'm not a very experienced/skilled programmer, and my main 'background', if i can call it so is in windows forms applications (Visual C++, C#), where conceptually speaking, everything is driven by events, the only possible difficulties arriving … |
| | hi every body..... ^_^ i have these problem in linked list and i need some one to answer it please..... Develop menu driven C++ program to manage the College of Science Book Store. Your program should maintain three linked lists: one for books, another one for students and a third … |
| | Hey I am new to this forum and to OOP please help me in developing window and to change the background color when i execute my program..... I am using Dev C++ of bloodshed[code][/code] |
| | I often see people asking the same question over and over, "How do I learn to program, and where do I start?" Some people may take that question to the next level by asking, "Which language should I learn first?". The answer to those questions is fairly simple, but also … Computer Science algorithm amazon-web-services asp asp.net client-server database-design delphi developer-tools first-post google gui html-css ide java-jsp java-netbeans javascript legacy-mac mac-software machine-learning microsoft microsoft-access microsoft-windows oop operating-system pascal perl python software-architecture unix user-interface vb.net vbscript visual-basic visual-studio web-browser web-design web-server windows-server xml  |
 | I am new here and this is my first post so I'm sorry if anything in this post is done incorrectly. I have taken a C++ class but did not get into any object oriented parts of it (all linear). Now I am in an object oriented class which is … |
| | Hi all, I'm after the opinion from experienced website devs. I want to build a website provides articles, of which some are restricted to subscribers. I will want to give users the ability to comment and rate articles. So I will need the following functionality: [LIST=1] [*]authentication [*]forms [*]user profile … |
| | I was wondering how one would go about creating a structure that cannot be used by itself, i.e. only through a wrapper class. My question is what would be the syntax for this construct? I'm currently on a personal project to make simple tests from old tests, all the questions … |
| | Hi all, I've been trying to work on solving this myself but failed short of new ideas. I am experiencing memory heap errors ever since I tried to transfer some functions (for calculating statistics i.e. getMode/getMean/getVariance) into a new class in the spirit of OOP. Compiler error is... --> This … |
| | i have been given an oop project on quiz condution while using operator overloading and file handling ..plzz help:(  |
| | Hello, I don't have technical problem. I was just thinking the difference between arrays and SQL. I am currently learning OOP in java and C# but my employment history is based on SQL Server. So I was thinking about this subject in my head and I don't see why bother …  |
| | Hi, I would like some advice on how to create a class to represent a one to many relationship in C#. i.e. I have a Customer and an Address table in my database. I also have a Customer class in my C# solution but how do I introduce the multiple … |
| | Hi, On this site I found a lot of cool examples of PHP OOP. Maybe you know where to find complete examples? Guest books, registration forms, blog... When I look at the full model is much easier to understand OOP PHP. As different classes interacting with each other, exchange data … |
| | Ok, so I'm trying to make a constructor for a text-based game for a monster. Here is the code for it: [CODE]public class Methods { String name; //characteristics of monsters int bodyPoints, mindPoints, attack, defense; public Monster(String name, int bodyPoints, int mindPoints, int attack, int defense) { this.name=name; this.bodyPoints=bodyPoints; this.mindPoints=mindPoints; … |
| | [CODE]class A extends B { C ob1=new C(); D ob2=new D(); protected void finalize() { System.out.println("Finalizing A"); super.finalize(); } public static void main(String ss[]) { new A(); System.gc(); } }[/CODE] Though System,gc() doesn't guarantee the running of finalization, my question is if the JVM is able to run the finalizations … |
| | Why is the constructor called from top to bottom rather than bottom to top ???? |
| | I need to code a program for my friend and it has been giving me some difficulties. This needs to have two classes, one called Tester and another called Game. And the data in the Game class needs to be pulled to the tester class after the calculations are finished. …  |
 | In a nutshell I am trying to write a program that will connect to a database, query several tables for various sets of data that will then be transformed into XML that is stored into a file on the local hard disk. My first thought process to solve this problem … |
| | When i run this, i get an error message saying TYpe expected and it points to the line having a.drive(100)... Any help please? Newbie... [code] class Car { public Car(){ int odometer=0; System.out.println("Car constructed!"); } public void drive(int miles) { System.out.println("Driving....."); odometer+=miles; } public long odometer; } class Guzzler extends … |
| | Hello, I'm not too experienced with C++ (I know C# pretty well), and I can't figure this out. I've got two files, Form1.h and Utility.h. Form1.h is initialized when the program starts, and when the user clicks a button, it should call some functions in Utility.h. Now the problem I … |
| | Hello, I have come across a compile error, which should have a very simple solution, but I cannot figure it out. I am fairly new to programming and am still getting used to OOP. I am trying to call a function from another class. The class seems to work but … |
| | So, I'm writing a roguelike game in C++. But, its complaining about a class I made called "Player" in the file "player.h" in the file "monster". When I input into monster this function: [CODE] void attackplayer(Player& hero, bool checkup, bool checkdown, bool checkleft, bool checkright) { if (checkup == true … |
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