c++ class member initialization
class Test {
private:
std::string data;
public:
test(std::string data) : data(data) {}
std::string getData() {
return data;
}
};
int main() {
Test test("This is just some random Text");
std::cout << test.getData() << std::endl;
return 0;
}how to initialize the object in constructor in c++
BigMommaClass {
BigMommaClass(int, int);
private:
ThingOne thingOne;
ThingTwo thingTwo;
};
BigMommaClass::BigMommaClass(int numba1, int numba2): thingOne(numba1 + numba2), thingTwo(numba1, numba2) {
// Code here
}cpp class constructor
class MyClass { // The class
public: // Access specifier
MyClass() { // Constructor
cout << "Hello World!";
}
};constructor c++ struct
struct Rectangle {
int width; // member variable
int height; // member variable
// C++ constructors
Rectangle()
{
width = 1;
height = 1;
}
Rectangle( int width_ )
{
width = width_;
height = width_ ;
}
Rectangle( int width_ , int height_ )
{
width = width_;
height = height_;
}
// ...
};c++ class member initializer list
#include <iostream>
class Entity {
private :
std::string m_Name;
int m_Score;
int x, y, z;
public:
Entity()
:m_Name("[Unknown]"),m_Score(0),x(0),y(0),z(0)//initialize in the order of how var are declared
{
}
Entity (const std::string& name)
:m_Name(name)
{}
const std::string& GetName() const { return m_Name; };
};
int main()
{
Entity e1;
std::cout << e1.GetName() << std::endl;
Entity e2("Caleb");
std::cout << e2.GetName() << std::endl;
std::cin.get();
}C++ constructor
class Book {public: Book(const char*); ~Book(); void display();private: char* name;};Copyright © 2021 Codeinu
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