Articles Tagged with class

Hi, as I was told that my code doesn’t scale well at all, I thought perhaps I’d try to get a better understanding of interfaces/abstract classes and classes and the relationship between them. I don’t want at this stage work on a big separate project as I've already got plenty …

When working with TCP client sockets I often find myself frustrated with the lack of event-driven support. I usually end up writing a whole bunch of code to determine disconnects, reconnecting, etc and I figuired it's time to just write my own class for this stuff. I figuired I'd share …

Hi everyone. I am trying to develop a class for a RISK boardgame, and I used UNIT_COLOR and UNIT_TYPE enums to represent the different types of pieces. These enumerations are defined as public in my class but are causing complete havoc in my code because with the C++11 "class enum," …

//There is a problem in int main when scanning in the constructors into the pointer array ( found around line 843) //(sorts by the value generated in calcStockIndex — a method within the stock class) #include <iostream> #include <fstream> #include<cmath> using namespace std; /* Purpose: To store all information that …

I want to learn java for competitive programming . I'm actually aware of all the great books on java like thinking in java , effective java etc. But those books are very detailed . i want to learn enough for competitive programming without going into too much of unnecessary details …

Hi there! I am having trouble figuring out what is wrong with my code also I'm kinda new to Python. I'm trying to get variables to one class to another class then return it back. Here is my code: from tkinter import * from tkinter import ttk class Logic: def …

Hi All, In below code i am surprised to see destructor for rectangle class is not being called though base class destructor for IShape is virtual. below is the output of below programme: draw the rectangle draw the circle draw destructor deleting circle **deleting the Rectangle** is missing from output …

hy ,i make binary tree,the input of binary tree in correct.but issues traversing of binary tree using stack ,because the result of traversing is wrong .please solve this issues. #include<iostream> #include<stack> using namespace std; struct node { int data; node *left; node *right; }; class usman { private: node *root,*leaf; …

I'm trying to Add a method to create a random size and position rectangle and add it to the Python list created in my constructor, The colour of the rectangles are based on the rainbow colours (‘red’, ‘orange’ ‘yellow’ ‘green’, ‘blue’ and ‘purple’) this is the current code I have, …

Hello all hope all is well, Im new to c# and new to the site so bare with a noob :). any way I have an assignment and Im running in to a problem where I don't know how to have c# read a text file and turn the numbers …

I'm in a Java class we are using netbeans to create a program. I have the code in and it builds but it will not run. Can anyone assist

Hi All, In below design i would like to know the appraoch of deletion of base class pointer .It is pritty clear that deletion of base class object obj won't take place inside Draw destructor. Apart from this same code i have tested using unique_ptr and as expected it is …

[COLOR=Indigo]Hey I'm pretty new to C++. I'm taking a class on it now but I don't know how to make sounds in C++... I've done QBasic so I have a little programming background. I'm right now thinking of what to do for a program, and it largely depends on if …

[B]PLEASE NEED HELP WITH THIS HOMEWORK.... THANKS[/B] THE FOLLOWING CODE PERFORMS A [B]SNAKE GAM[/B]E USING GRAPHICS.H LIBRARY IN [B]TURBO C++ COMPILER[/B]... PLEASE ADD TWO MORE FEATURES... USING AN "+" CHARACTER TO INCREASE VELOCITY OR REDUCE DELAY AND ALSO AN OPTION TO RECORD HIGHER SCORES. PICTURE: [ATTACH]15179[/ATTACH] THE FOLLOWING CODES NEED …

Hi, I'm still practice learning Python. I have a litte homework, make Class method, Class Date and Class Delta without using import. it must be like this... `>>> date(2020, 5, 2) + delta(year=5)` `date(2025, 5, 2)` `>>> date(2020, 5, 2) + delta(month=3)` `date(2020, 8, 2)` `>>> date(2020, 5, 2) + …

How to combine two class? so the output can be equal... here's my code.. class year: def __add__(self, year): return (year) class day: def __add__(self, day): return (day) class month: def __add__(self, month): return (month) class Date: def __call__(self, year, month, day): return (year, month, day) class Delta(year, month, day): …

Hi. Im trying this java program that's suppose to register the "staff"'s "car" and there's this boolean method that I don't know how to solve. There are 3 classes: Tester, Staff and Car. the boolean part is suppose to check if the staff has 1 or 2 cars registered and …

Hi, recently I am taking part in a project which using data-id and data-type to perform script selection. I had read a few articles regarding the issue 'HTML5 Custom Data Attributes ' including [http://stackoverflow.com/questions/15507354/what-are-the-differences-between-using-data-attributes-and-class-id-for-javasc](http://stackoverflow.com/questions/15507354/what-are-the-differences-between-using-data-attributes-and-class-id-for-javasc) I am here asking opinions on the usage of difference in performance, tidyness of code and …

class Data { string name; string ID; public: Data(){cout<<"Data"<<endl;} }; class info{ string name; string ID; public: info(){cout<<"info"<<endl;} }; Two classes defined above. Now I want to create a vector of type std::vector<Data obj1, info obj2> container; further I want to use the vector features using the vector container. How …

Hi there, I have a class definition like : class Student{ String name; int sub1; int sub2; int sub3; //... } I have list of all students. I want to get count, average, min, max etc using IntSummaryStatistics. Below is the code for sub1: IntSummaryStatistics sub1Summary = students.stream().collect(Collectors.summarizingInt(s -> s.sub1)); …

Another common statistical measure is the standard deviation, which provides an indication of how the indivdual values in the distribution differ from the mean. to calculate the standard dev. whose element are x1, x2.....xn you need to perform the ff steps a. calculate the mean of the distribution b. go …

Write a C++ program that reads in two partially filled arrays. One array contains student IDs (with int type) and the other contains GPAs (with double type). The program will sort the two arrays according to the student ID and print out the results.

Hi, I was using booleans earlier in my class. --> isProductRestricted --> internal --> isProductGlobal I am using lombok too. So putting @Data at the top of class too. But, now I changed these boolean to Boolean variable. I got errors where ever `Object.isInternal()` was used. I am not getting …

Hey, I have one class Company and one Item class which is an object in Company class as shown: public abstract class Company { @Inject private ItemClass item; void companyMethod() { this.item.itemMethod(); } } public class ItemClass { public void itemMethod() { // logic } } So, many class inherits …

Hey I just found this site because I have been working on a program to make answer and create questions to the game 24. (24 is a game where players are given 4 numbers and by either adding, subtracting, multiplying and Dividing the given numbers the number at the end …

Hi there, i have a ball: [icode] void ball (void) { glColor3f(0.0, 1.0, 0.0); //set ball colour glTranslatef(0.0,0.0,1); //moving it toward the screen a bit on creation glutSolidSphere (0.6, 7, 7); //create ball. } [/icode] I am trying to get the ball to move in a direction when i press …

hi! I haven't been here in a while, but i'm glad you're still around since I need some help! I've got to implement a round-robin simulation of process execution. I've decided to do this in VB.NET because it's my strongest language and it's a difficult concept! I've got some of …

Hey guys. I seem to be having a problem with my code. import java.util.Scanner; public class fishingGames { public static void main(String[] args) { int totalPoints = 0; String items; int Sides = 6; boolean playAgain = true; Scanner keyboard = new Scanner(System.in); Dice = new Dice(Sides); while (playAgain) { …

I've an abstract class Area, which is subclassed as Province, Division, District and City. Now, I need to specify in the City class in which district this city exists. So, I will have an instance of District class inside City class (Composition), so that I could pass id of a …

I have a Points class and a Segment class as follows: class Points { double x; double y; int Index=-1; } class Segment { Points Orig; Points End; Segment(const Points& a, const Points& b){Orig=a;End=b} void ChangeGlobalIndex() { do something to change the index of two end points. } } int …