cs301 Object Oriented Programming assignment no 3 June spring 2012

[Vuhelper]

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:

Implement data members and member functions for each class
Implement constructor and destructor for each class
Implement setters and getters functions for each class
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(){


}

};
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