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Tuesday 5 June 2012

CS304 Assignment No.03 Spring 2012 Idea Solution


Object Oriented Programming (CS304)

Assignment No.03Object Oriented Programming (CS304)

Assignment No.03


Total Marks                                                                                                             20


Deadline


Your assignment must be uploaded before or on 11th June, 2012.

Rules for Making


It should be clear that your assignment will not get any credit if:

o        The assignment is submitted after due date
o        The assignment is copied

Objectives


This assignment has been designed so that you would be able to implement the concept of Inheritance in OOP. After the completion of this assignment you should have a good grasp on how to implement.

o        Inheritance
o        Using basic constructs of OOP in a program

In previous assignments we have understood all the basics of the Song Library System including the Object Model Diagram and highlighted the Abstraction of classes in terms of attributes and functions prototype. Now it is time to implement the full system in parts, so this assignment is first step towards it.
















Assignment:
Object Model for 3rd assignment:


In this assignment you have to code/implement the below said classes in running form these classes are,

·         User
·         Listener
·         Administrator


Now for implementing these three classes practically in c++ you have to define classes according to the requirements given below:

  1. Implement data members and member functions for each class
  2. Implement constructor and destructor for each class
  3. Implement setters and getters functions for each class
  4. Implement different type of relations between these classes

Sample Example:

//Topic class
class topic{
    // Data members of Topic class
    int ID; 
    char  * Title;     
    char discription[200];
   
    //Public interface of topic class
    public:
    //Default constructor
    topic(){   
    ID=1;
    Title=NULL;
     }
    //parametrized constructor
    topic(int id, char *title){
    ID=id;
    Title=new char[strlen(title)+1];
    strcpy(Title,title);
     }
     //setter function for ID
    void setId() {
    int id;
    cout<<"\nEnter ID: ";
    cin>>id;
      }

       
    void setTitle() {
     char pChar[50];
     cout<<endl<<"\nEnter Title: ";
     cin.getline(pChar,50);
     Title=new char[strlen(pChar)+1];
     strcpy(Title,pChar);
       }   

    void setTitle(char * title){
        Title=title;
        }
       
    void setdiscription(){
        cout<<"\nplease enter discription of title"<<endl;
        cin.getline(discription,200);
        }


    int getId(){
     return ID;
     }
    
    char * getTitle(){
       return Title;
       }
       
    void add(){
        cout<<"\n*****************************************\n";
        cout<<"\nAdding new information in add method";
        setTitle();
        setdiscription();
        cout<<"\n*****************************************\n"; 
        }
   
   bool select(){
        cout<<"Topic selection Area:"<<endl;
        int select;
        if (select==1)
        cout<<"\nTopic is selected"<<endl;
        else
        cout<<"\nTopic is not selected"<<endl;
        }

    int search(){
        cout<<"In Search Mehtod:"<<endl;
       int found=0;
       if (found)
                        return 1;
               else
                        return 0;
                        }                      

    void View() {
        cout<<"Viewing the Information";
        cout<<"\n*****************************************\n";
        cout<<"\nTitle is:"<< Title ;
        cout<<endl<<"\nDescription is:"<<discription[100];
        cout<<"\n*****************************************\n";
        }
           
    void print(){
        cout<<"\n*****************************************\n";
        cout<<endl<<"\nPrinting the Information:"<<endl;
        cout<<"Title:"<<Title<<endl<<"Discription:"<<discription;
        cout<<"\n*****************************************\n"; 
          }
         
    void download(){
        cout<<"\n*****************************************\n";
        cout<<"\nDownloading the information:"<<endl;
        cout<<"Downloading under processing, Please wait:"<<endl;
        cout<<"You are downloding the following:"<<endl<<Title<<"file";
        cout<<" and the following discription"<<endl<<discription<<"File";
        cout<<"\n*****************************************\n";
       
        }
       
    void remove(){
        cout<<"\n*****************************************\n";
        cout<<"\nDeleting the information"<<endl;
        cout<<"\n*****************************************\n";
        delete []Title;
        delete [] discription;
         }

    ~topic(){
       
        }
    };
   

      
class SubTopic: public topic {  
     int SubID;
     char * title;
     char discription[100];

     public:
   
         void setSubID(){
             int subid;
             cout<<"Enter ID of Sub topic:";
             cin>>subid;
             }
                
         void setdiscription(char []){
             char dChar[200];
             cout<<"Enter discription of Sub topic:"<<endl;
             cin.getline(dChar,200,'\n');
             }
            
         int getSubID(){
             return SubID;
             }
            
        void setTitle(){
             char pChar[50];
             char dChar[200];
             cout<<endl<<"Enter Title : ";
             cin.getline(pChar,50);
             cout<<endl<<"Enter Title discription:";
             cin.getline(dChar,200);
             if(strlen(dChar)>=90){
             cout<<"Eligible for being a topic"<<endl;
             }
             else
             {
             cout<<"Title just contains name and no description"<<endl;
             }
             }
       
         ~SubTopic(){
            
            
             }
   
    };
at 03:21