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Java Java Objects Delivering the MVP Forum

I'm litterally copying somones answer but I still get this weird error.

I've tried my own solution but I got this error. Afterwards I tried someone else's answer but I still get the error. This is the error.

./Main.java:16: error: cannot find symbol
  symbol:   method addPost(ForumPost)
  location: variable forum of type Forum
Note: JavaTester.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
1 error

It would be very nice if someone could help. Here's the code.

public class Main {

  public static void main(String[] args) {
    System.out.println("Beginning forum example");
    if (args.length < 2) {
      System.out.println("Usage: java Main <first name> <last name>");
      System.err.println("<first name> and <last name> are required");

    Forum forum = new Forum("Java");

  User author = new User(args[0],args[1]);

ForumPost post = new ForumPost(author, "TestTitle", "TestDesc");


Bryan Martinez
Bryan Martinez
2,227 Points

Hi i'm still learning but I'll give it a shot. Did you uncomment the addPost method in the Forum class? I think you might have forgotten to do this which is why you cannot access addPost. Please let me know if this was the issue. if not I can try some other things. Thanks

Hehe, thank you Bryan Martinez I actully forgot to uncomment the addPost method. xD

Bryan Martinez
Bryan Martinez
2,227 Points

No problem! Funny how many times the issue causing us a big headache in programming is just a simple mistake lol

Happy Coding!

Haha, that is so true. We just have to learn how to be thorough when we're coding. Once again thanks for the help.