Case Study: Designing a Social Media Platform
In this case study, we will apply the concepts learned in the previous lessons to design a hypothetical social media platform.
Imagine you are tasked with designing a social media platform that allows users to connect with friends, share posts, and interact with each other's content.
Class Design
To start, we can create a User class that represents a user on our social media platform. Each user will have a username, a list of friends, and a list of posts they have made.
We can define the User class as follows in C++:
1#include <iostream>
2#include <vector>
3
4using namespace std;
5
6// Implement your social media platform design here
7
8class User {
9public:
10 string username;
11 vector<User*> friends;
12 vector<string> posts;
13
14 User(string name) {
15 username = name;
16 }
17
18 void addFriend(User* friend_) {
19 friends.push_back(friend_);
20 }
21
22 void makePost(string post) {
23 posts.push_back(post);
24 }
25
26 void displayFriends() {
27 cout << "Friends of " << username << ":\n";
28 for (User* friend_ : friends) {
29 cout << friend_->username << "\n";
30 }
31 }
32
33 void displayPosts() {
34 cout << "Posts by " << username << ":\n";
35 for (string post : posts) {
36 cout << post << "\n";
37 }
38 }
39};
40
41int main() {
42 User user1("John");
43 User user2("Sarah");
44 User user3("Mike");
45
46 user1.addFriend(&user2);
47 user1.addFriend(&user3);
48
49 user1.makePost("Hello, everyone!");
50 user2.makePost("Excited to join the social media platform!");
51 user3.makePost("Looking forward to connecting with new friends!");
52
53 user1.displayFriends();
54 user2.displayFriends();
55 user3.displayFriends();
56
57 user1.displayPosts();
58 user2.displayPosts();
59 user3.displayPosts();
60
61 return 0;
62}In this example, we create three users (John, Sarah, and Mike) and connect them as friends. Each user can make posts, and we can display their friends and posts.
This is just a simple representation of a social media platform, but the design can be expanded upon to include features like post likes, comments, and news feeds.
Summary
In this case study, we explored the design of a social media platform using a hypothetical scenario. We created a User class to represent users on the platform and demonstrated how users can add friends and make posts.
This is just one way to design a social media platform, and there are many other considerations and features that can be added. The aim was to apply the concepts learned in the previous lessons and provide a starting point for further exploration and design.
xxxxxxxxxx}#include <iostream>#include <vector>using namespace std;// Implement your social media platform design hereclass User {public: string username; vector<User*> friends; vector<string> posts; User(string name) { username = name; } void addFriend(User* friend_) { friends.push_back(friend_); } void makePost(string post) { posts.push_back(post); } void displayFriends() { cout << "Friends of " << username << ":\n"; for (User* friend_ : friends) { cout << friend_->username << "\n";