Thread: Purpose of Private and Public Access Specifiers, OOP

  1. #1
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    Purpose of Private and Public Access Specifiers, OOP

    I was just wondering in my program, what exactly is the purpose of declaring private data members? What exactly is the concept behind, private and public?

    Code:
    #include<iostream> 
    
    using namespace std; 
      
    class Encapsulation   /*class name is Encapsulation */
    { 
        private:         /*access specifer */
    
    
            int x;      /* x is integer variable that store integer value */
              
        public:          /*access specifer */
           
            void set(int a)     /*function that pass integer value a */
            { 
                x =a;          /* we are assigning content of a to x */
            } 
              
            int get()         /* function that resturn value of x */
            { 
                return x;    /*return result of x */
            } 
    }; 
      
    int main()     /* start program */
    { 
        Encapsulation obj;   //declare object of job */
          
        obj.set(5);          // call function to pass 5
          
        cout<<obj.get();     /* get output of function 
        return 0; 
    }

  2. #2
    and the hat of int overfl Salem's Avatar
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    Do you have any books on learning C++?

    Data Encapsulation in C++ - Tutorialspoint
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