Description

1. Class definition class Shape { public: private: protected: }; 2. Input/output #include<iostream> using namespace std; … cin >> … ; cout <<

4. String object #include<string> using namespace std; ... string str1 = "Hello"; string str2 = "World"; 9. Exception Pitcher throw exception_name(…); Catcher try { // code might throw exceptions } catch (exception_name &obj) { // code to handle exception }

10. Dynamic allocation int *ptr = new int; delete ptr; int *ptr = new int[100]; delete [] ptr; or http://acm.cs.nthu.edu.tw/problem/11419/

11. Inheritance class A { // A is a base class } class B: public A { // B inherits A. // B is a derived class}

Inheritance type	Public	Protected	Private
Public data/ functions in the base class	Public in the derived class	Protected in the derived class	Private in the derived class
Protected data/ functions in the base class	Protected in the derived class	Protected in the derived class	Private in the derived class
Private data/fun in the base class	Not accessible in the derived class	Not accessible in the derived class	Not accessible in the derived class

 

 

 

 

 

 

 

 

 

12. Polymorphism In the base class virtual void foo(); In the derived class virtual void foo() override;

14. Final member function virtual void foo() override final; 15. Abstract class and pure virtual function virtual void foo() =0;

16. Dynamic casting BasePtr *Bptr = ...; dynamic_cast <DerivedClassName> (*Bptr); 18. Prefix/postfix operators complex &operator++(); // prefix complex operator++(int); // postfix

17. Operator overloading Binary operators /*1.non-static member function */ complex operator+ (const complex&); /* 2. non-member function */ friend complex operator* (const complex&, const complex&); Unitary operators /*1.non-static member function */ complex operator-(); /*2. non-member function */ friend complex operator~(const complex&);

Input

Output

Sample Input  Download

Sample Output  Download

Tags

Discuss