SlideShare a Scribd company logo

C++ Programming - 6th Study

•
•
Chris Ohk
Chris Ohk

The document contains C++ code examples demonstrating constructors, destructors, initialization lists, and member access in classes. Example 1 shows a basic class with a default constructor. Example 2 adds a parameterized constructor. Example 3 adds a constant string member initialized in the initialization list. Example 4 improves initialization by using an initialization list. Later examples demonstrate a class with a destructor, multiple classes with constructors and destructors, and proper use of 'this' for member access.

Related slideshows

Programming Language: Ruby
Programming Language: RubyProgramming Language: Ruby
Programming Language: Ruby
 
与 PHP 和 Perl 使用 MySQL 数据库
与 PHP 和 Perl 使用 MySQL 数据库与 PHP 和 Perl 使用 MySQL 数据库
与 PHP 和 Perl 使用 MySQL 数据库
 
Couchdb
CouchdbCouchdb
Couchdb
 
1 of 26
Download to read offline
C++ Programming - 6th Study
C++ Programming - 6th Study
3
4
5
6
7
8 class Person { private: double height; double weight; public: Person() { cout << "Person() Called!n"; } }; int main() { Person p1; Person* p2 = new Person(); }
class Person { private: double height; double weight; public: Person(double _height, double _weight) { height = _height; weight = _weight; } }; int main() { Person p1(183.4, 78.5); Person p2; // Error! } 9
10 class Person { private: const string SSN; double height; double weight; public: Person() { } Person(const string _SSN, double _height, double _weight) { SSN = _SSN; height = _height; weight = _weight; } }; int main() { Person p("123456-1234567", 183.4, 78.5); }
11
12 class Person { private: const string SSN; double height; double weight; public: Person() { } Person(const string _SSN, double _height, double _weight) : SSN(_SSN), height(_height), weight(_weight) { } }; int main() { Person p("123456-1234567", 183.4, 78.5); }
C++ Programming - 6th Study
14
15
16
17
18 class IntPointer { private: int* pi; public: IntPointer() { pi = new int[5]; } ~IntPointer() { delete[] pi; pi = nullptr; } };
19 class A { public: A() { cout << "A() Called!n"; } ~A() { cout << "~A() Called!n"; } }; class B { public: B() { cout << "B() Called!n"; } ~B() { cout << "~B() Called!n"; } }; int main() { A a; B b; }
C++ Programming - 6th Study
21
22
23 class Person { private: double height; double weight; public: Person() { } Person(double _height, double _weight) : height(_height), weight(_weight) { } void setHeight(double height) { height = height; } double getHeight() { return height; } }; int main() { Person p(183.4, 78.5); p.setHeight(182.8); cout << p.getHeight() << endl; }
24
25 class Person { private: double height; double weight; public: Person() { } Person(double _height, double _weight) : height(_height), weight(_weight) { } void setHeight(double height) {this->height = height; } double getHeight() { return height; } }; int main() { Person p(183.4, 78.5); p.setHeight(182.8); cout << p.getHeight() << endl; }
26

More Related Content

C++ Programming - 6th Study

  • 3. 3
  • 4. 4
  • 5. 5
  • 6. 6
  • 7. 7
  • 8. 8 class Person { private: double height; double weight; public: Person() { cout << "Person() Called!n"; } }; int main() { Person p1; Person* p2 = new Person(); }
  • 9. class Person { private: double height; double weight; public: Person(double _height, double _weight) { height = _height; weight = _weight; } }; int main() { Person p1(183.4, 78.5); Person p2; // Error! } 9
  • 10. 10 class Person { private: const string SSN; double height; double weight; public: Person() { } Person(const string _SSN, double _height, double _weight) { SSN = _SSN; height = _height; weight = _weight; } }; int main() { Person p("123456-1234567", 183.4, 78.5); }
  • 11. 11
  • 12. 12 class Person { private: const string SSN; double height; double weight; public: Person() { } Person(const string _SSN, double _height, double _weight) : SSN(_SSN), height(_height), weight(_weight) { } }; int main() { Person p("123456-1234567", 183.4, 78.5); }
  • 14. 14
  • 15. 15
  • 16. 16
  • 17. 17
  • 18. 18 class IntPointer { private: int* pi; public: IntPointer() { pi = new int[5]; } ~IntPointer() { delete[] pi; pi = nullptr; } };
  • 19. 19 class A { public: A() { cout << "A() Called!n"; } ~A() { cout << "~A() Called!n"; } }; class B { public: B() { cout << "B() Called!n"; } ~B() { cout << "~B() Called!n"; } }; int main() { A a; B b; }
  • 21. 21
  • 22. 22
  • 23. 23 class Person { private: double height; double weight; public: Person() { } Person(double _height, double _weight) : height(_height), weight(_weight) { } void setHeight(double height) { height = height; } double getHeight() { return height; } }; int main() { Person p(183.4, 78.5); p.setHeight(182.8); cout << p.getHeight() << endl; }
  • 24. 24
  • 25. 25 class Person { private: double height; double weight; public: Person() { } Person(double _height, double _weight) : height(_height), weight(_weight) { } void setHeight(double height) {this->height = height; } double getHeight() { return height; } }; int main() { Person p(183.4, 78.5); p.setHeight(182.8); cout << p.getHeight() << endl; }
  • 26. 26