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Start your free trialSebastian Manczak
3,551 PointsForum question last part.
I'm on the last part and this alert doesn't let me finish the task: !Are you sure you used the arguments passed in from the main method in Main.java? args[0] is the firstName and args[1] should be the last name!"
What else do I need to correct?
public class Forum {
private String topic;
// TODO: add a constructor that accepts a topic and sets the private field topic
public Forum(String topic) {
this.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
firstName = "";
lastName = "";
}
public String getFirstName() {
return firstName;
}
public String getLastName() {
return lastName;
}
// TODO: add getters for firstName and 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("Java");
// TODO: pass in the first name and last name that are in the args parameter
User author = new User(args[0], args[1]);
// TODO: initialize the forum post with the user created above and a title and description of your choice
ForumPost post = new ForumPost(author, "title", "description");
forum.addPost(post);
}
}
2 Answers
Steve Hunter
57,712 PointsHi there,
In your User
constructor, set the names to the values passed in:
public User(String firstName, String lastName) {
// TODO: set and add the private fields
firstName = ""; // <- this should be set to the value passed in; this.firstName = firstName
lastName = "";
}
At the moment, your constructor sets the local variables that are passed in as arguments to an empty string. You want to set this.firstName
to the value passed in.
I hope that helps!
Steve.
Sebastian Manczak
3,551 PointsYes, it worked. Thank you Seve.
Steve Hunter
57,712 PointsNo problem!