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copied!<p>Well documented example taken and explained better from <a href="http://www.java-samples.com/showtutorial.php?tutorialid=313" rel="noreferrer">Constructors and Destructors in C++</a>: </p> <pre><code>#include <iostream> // for cout and cin class Cat // begin declaration of the class { public: // begin public section Cat(int initialAge); // constructor Cat(const Cat& copy_from); //copy constructor Cat& operator=(const Cat& copy_from); //copy assignment ~Cat(); // destructor int GetAge() const; // accessor function void SetAge(int age); // accessor function void Meow(); private: // begin private section int itsAge; // member variable char * string; }; // constructor of Cat, Cat::Cat(int initialAge) { itsAge = initialAge; string = new char[10](); } //copy constructor for making a new copy of a Cat Cat::Cat(const Cat& copy_from) { itsAge = copy_from.itsAge; string = new char[10](); std::copy(copy_from.string+0, copy_from.string+10, string); } //copy assignment for assigning a value from one Cat to another Cat& Cat::operator=(const Cat& copy_from) { itsAge = copy_from.itsAge; std::copy(copy_from.string+0, copy_from.string+10, string); } // destructor, just an example Cat::~Cat() { delete[] string; } // GetAge, Public accessor function // returns value of itsAge member int Cat::GetAge() const { return itsAge; } // Definition of SetAge, public // accessor function void Cat::SetAge(int age) { // set member variable its age to // value passed in by parameter age itsAge = age; } // definition of Meow method // returns: void // parameters: None // action: Prints "meow" to screen void Cat::Meow() { cout << "Meow.\n"; } // create a cat, set its age, have it // meow, tell us its age, then meow again. int main() { int Age; cout<<"How old is Frisky? "; cin>>Age; Cat Frisky(Age); Frisky.Meow(); cout << "Frisky is a cat who is " ; cout << Frisky.GetAge() << " years old.\n"; Frisky.Meow(); Age++; Frisky.SetAge(Age); cout << "Now Frisky is " ; cout << Frisky.GetAge() << " years old.\n"; return 0; } </code></pre>

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