call constructor from parent for three level extending : Derived « Class « C++

Home
C++
1.Bitset
2.Class
3.Console
4.Data Structure
5.Data Type
6.Deque
7.Development
8.File
9.Function
10.Generic
11.Language
12.List
13.Map Multimap
14.Overload
15.Pointer
16.Qt
17.Queue Stack
18.Set Multiset
19.STL Algorithms Binary search
20.STL Algorithms Heap
21.STL Algorithms Helper
22.STL Algorithms Iterator
23.STL Algorithms Merge
24.STL Algorithms Min Max
25.STL Algorithms Modifying sequence operations
26.STL Algorithms Non modifying sequence operations
27.STL Algorithms Sorting
28.STL Basics
29.String
30.Valarray
31.Vector
C / ANSI-C
C Tutorial
C++ Tutorial
Visual C++ .NET
C++ » Class » DerivedScreenshots 
call constructor from parent for three level extending
   
#include <iostream>
#include <string.h>
using namespace std;
class Base 
{
  public:
    Base(char *str) { strcpy(message, str)}
    void show_base(void) { cout << message << endl; };
  protected:  
    char message[256];
};


class Level1 : public Base 
{
  public:
    Level1(char *str, char *base: Base(base) {
      strcpy(message, str);};
    void show_level1(void) { cout << message << endl; ;
  protected:  
    char message[256];
};

class Lowest : public Level1 
{
  public:
    Lowest(char *str, char *level1, char *base:
      Level1(level1, base) { strcpy(message, str)};
    void show_lowest(void
  {
       show_base();
       show_level1();
       cout << message << endl; 
  };
  protected:
    char message[256];
};

int main(void
{
   Lowest bottom("L""m""e");
   
   bottom.show_lowest();
}
  
    
    
  
Related examples in the same category
1.A base pointer to access derived objectsA base pointer to access derived objects
2.Demonstrate pointer to derived class.Demonstrate pointer to derived class.
3.Simple class with its derived classSimple class with its derived class
4.Using pointers on derived class objects.
5.how to pass arguments to the base classes of a derived class by modifying the preceding program
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.