fstream contactfile;
contact* temp;
contact* remove;
contact* newcontact;

char tempname[50];
char tempphone[50];
char tempemail[50];

case 4:
	contactfile.open("contacts.dat",ios::out);
	temp=first;
	while(temp!=NULL){
		contactfile << temp->getname() << endl;
		contactfile << temp->getphone() << endl;
		contactfile << temp->getemail() << endl;
		temp=temp->getnext();
	}
	contactfile.close();


case 5:
		
	temp=first;
	while(temp!=NULL){
		remove=temp;
		temp=temp->getnext();
		delete remove;

	}
	first=NULL;

	contactfile.open("contacts.dat",ios::in);
	while(contactfile.eof()==0 ) {
		newcontact=new contact;
		contactfile.get(tempname,50,'\n');
		contactfile.get(nl);
		contactfile.get(tempphone,50,'\n');
		contactfile.get(nl);
		contactfile.get(tempemail,50,'\n');
		contactfile.get(nl);
		newcontact->setname(tempname);
		newcontact->setemail(tempemail);
		newcontact->setphone(tempphone);
		if(first==NULL) first=newcontact
			else temp->setnext(newcontact);
		temp=newcontact;
	}
	temp->setnext(NULL);
	contactfile.close();