Set a data member to a value in constructor - C++ Class

C++ examples for Class:Constructor

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Description

Set a data member to a value in constructor

Demo Code

#include <cstdio>
#include <cstdlib>
#include <iostream>
using namespace std;

int nextEmployeeId = 1000;
class EmployeeId//from   w  w w  .  jav a 2 s.  c om
{
  public:
    EmployeeId(){
        value = nextEmployeeId++;
        cout << "take next employee id " << value << endl;
    }
    EmployeeId(int id)
    {
        value = id;
        cout << "assign employee id " << value << endl;
    }
  protected:
    int value;
};


class Employee
{
  public:
    Employee(const char *pName, int ssId): name(pName), id(ssId)
    {
        cout << "constructing employee " << pName << endl;
    }
  protected:
    string name;
    EmployeeId id;
};

int main(int argcs, char* pArgs[])
{
    Employee s("Jack", 1234);
    cout << "This message from main" << endl;

    return 0;
}

Result


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