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Tom Schembri
1,450 PointsForum Challenge Help!
I understand the first three steps but I don't know where to begin with the fourth step. I know I'am supposed to follow the comments but I don't know what I need to do and where I need to do it. If anyone can provide me with some help that would be great!
public class Forum {
private String topic;
// TODO: add a constructor that accepts a topic and sets the private field topic
public Forum(String topic){
topic = topic;
}
public String getTopic() {
return topic;
}
public void addPost(ForumPost post) {
System.out.printf("A new post in %s topic from %s %s about %s is available",
topic,
post.getAuthor().getFirstName(),
post.getAuthor().getLastName(),
post.getTitle()
);
}
}
public class User {
// TODO: add private fields for firstName and lastName
private String firstName;
private String lastName;
public User(String firstName, String lastName) {
// TODO: set and add the private fields
this.firstName=firstName;
this.lastName=lastName;
}
// TODO: add getters for firstName and lastName
public String getFirstName(){
return firstName;
}
public String getLastName() {
return lastName;
}
}
public class ForumPost {
private User author;
private String title;
private String description;
// TODO: add a constructor that accepts the author, title and description
public ForumPost(User author, String title, String description){
this.author = author;
this.title = title;
this.description = description;
}
public User getAuthor() {
return author;
}
public String getTitle() {
return title;
}
public String getDescription() {
return description;
}
}
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");
System.exit(1);
}
Forum forum = new Forum(args[0]);
// TODO: pass in the first name and last name that are in the args parameter
User author = new User(String firstName,lastName);
// TODO: initialize the forum post with the user created above and a title and description of your choice
ForumPost post = new ForumPost();
String post = "hi";
forum.addPost(post);
//
}
}
1 Answer
Umesh Ravji
42,386 PointsHi Tom, you're certainly making the changes in the right place, but just not the right changes :)
Forum forum = new Forum("Fry Cooking"); // instantiate forum object with any topic
User author = new User(args[0], args[1]); // first and last names are obtained from args
ForumPost post = new ForumPost(author, "Krabby Patty", "How to create the perfect Krabby patty."); // instantiate post object
forum.addPost(post);
Brian Pedigo
26,783 PointsBrian Pedigo
26,783 PointsHi Tom. It seems to me that you accomplished all the to-do's for Forum, User and ForumPost classes. However, it looks like the problem is in the Main class's to-do list. The 1st to-do is asking for the first name and last name be passed in. After, looking at the classes it looks like the user object was made to hold that data. Try something like.
User author = new User(args[0],arg[1]);The 2nd to-do asking for initialize a fourmPost object with the newly created user object "author" and letting you pick the title and description. Try something like.
ForumPost post = new ForumPost(author, "Java is cool", "it is all about object oriented programming!");I hope that this helps!