Constructors and Destructors - C++ Class

C++ examples for Class:Constructor

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Description

Constructors and Destructors

Demo Code

#include <cstdlib> 
#include <iostream> 

using namespace std; 

class MyClass /*from w  w  w .j a v a 2s  . com*/
 { 
 public : 
    MyClass(); 
    ~MyClass(); 

    void SetI(int iValue); 
    int GetI(); 

    void SetF(float fValue); 
    float GetF(); 

private: 
    int i; 
    float f; 
}; 


MyClass ::MyClass() 
{ 
    cout << "Entering constructor." << endl; 
    i = 0; 
    f = 0.0; 
} 


MyClass ::~MyClass() 
{ 
    cout << "Entering destructor." << endl; 
} 


void MyClass ::SetI(int iValue) 
{ 
    i = iValue; 
 } 


int MyClass ::GetI() 
{ 
    return (i); 
} 


void MyClass ::SetF(float fValue) 
{ 
    f = fValue; 
} 


float MyClass ::GetF() 
{ 
    return (f); 
} 


int main(int argc, char *argv []) 
{ 
    MyClass anObject, anotherObject; 

    anObject .SetI(10); 
    anObject .SetF(3.14159); 

    anotherObject .SetI(-10); 
    anotherObject .SetF(0.123456); 

    cout << "anObject .i = " << anObject .GetI() << endl; 
    cout << "anObject .f = " << anObject .GetF() << endl; 

    cout << "anotherObject .i = " << anotherObject .GetI() << endl; 
     cout << "anotherObject .f = " << anotherObject .GetF() << endl; 

   
     return (0); 
 }

Result


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