Simply add a getter method int get_x() to Class1 #include <iostream> #include <conio.h> using namespace std; class Class1{ private: int x; public: Class1(); void Display(); int get_x(); }; int Class1::get_x() { return x; } class Class2{ private: double z; public: Class2(); void Display(); Class2 Add(Class1); }; Class1::Class1(){ x = 1; } Class2::Class2(){ z = 5; … Read more
For starters, you should remove #include “Car.h” from Color.h. It creates an unnecessary circular include, and the compiler hits Car(Color a) before it knows that Color is a class. You also need to include the header <string> to output a string to cout. Next time, maybe don’t insult the people who are helping you. solved … Read more
Introduction This question is related to a common error in C++ programming, which is the “expected ‘)’ before object. class does not name a type” error. This error occurs when the programmer attempts to use a class name as a type, but the class has not been declared. In this article, we will discuss the … Read more
When reading from standard input, do not mix C library functions, such as fgets(), and C++ std::cin operators. The C library knows nothing about what the C++ library is doing. Change your code to use only stdin, or only std::cin, to read standard input. solved Why is this code not taking input for “Designation”?
Yes. Yes it is valid. Every instance of the Foo class will have a field called b1 which has a new Bar instance. 1 solved Object instantiation and assignment in a class [closed]
A member is some entity that belongs to a class. If a class has a function, this is a member function – you might know it as “a method”. If a class has a variable, this is a member variable – you might know it as “a property”. int a; void f () {}; class … Read more
Just make ctor private/protected and provide a static method(s) to create an instance: class HeapOnly { HeapOnly(); HeapOnly( int i ); public: static HeapOnly *create() { return new HeapOnly; } static HeapOnly *create( int i ) { return new HeapOnly( i ); } }; You may consider to return a std::unique_ptr in general case, but … Read more
The using System is the basic framework that needs to be uploaded to do thing like Console.write(). With out it, you’d have to do System.Console.write. In your second example, you are just importing other framework that you might need depending on what you are developing. From the looks of it, it is a basic game … Read more
Yes, just copy xpath of element using browser dev tools (F12) 1 solved How can I select this span class element using Selenium 3?
What’s wrong with creating an instance of the class and throwing it in a list? entity_list = [] for i in range(10000000): entity_list.append(Entity()) solved Pygame, spawning an infinite number of enemies? [closed]
You need a contructor, or setting all values before trying to get them or there will be null pointers public MotorBoat(double a, double b, double c /* etc*/){ this.a = a; this.b = b; this.c = c; } also returning amunt used needs to have the () removed in the return else you are refering … Read more
I think this is everything that every Java class has: A class name. A class access … implicitly package private, if you don’t specify one. A package … implicitly the default package, if you don’t specify one. A superclass … implicitly java.lang.Object, if you don’t specify one. A body which may be empty. A constructor … Read more
You haven’t actually provided code that exhibits your problem but, to answer your question, ways to pass argv[2] as a string to a function include #include <cstring> #include <iostream> void func(const char *s) { // treat s as a zero terminated string if (std::strcmp(s, “Hello”) == 0) { std::cout << “You said hello\n”; } } … Read more
class Number : public string { public: Number() : string(“0”) { } Number(const string &str) : string(str) { } }; However, as long as you have the following 2 lines in the beginning, the name Number will be replaced by preprocessor. #ifndef Number #define Number You should use another macro name for the #include guard. … Read more
Make your Racer superclass abstract and include an abstract method called move. Then when you extend Racer to each of the racer types, you can write unique methods that all return a value indicating the distance to move. This enables you to create a list of racers and call the move method directly from the … Read more