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Start your free trialAdam Łakomy
10,718 PointsChallenge 4 of 4 - error without explaination
Hey,
I'am nearly at the end of Java objects course - I only need to solve last challenge but I get error and compiler didn't show my anything except Bummer! Try again!
Here is my code:
ForumPost.java
public class ForumPost {
private User mAuthor;
private String mTitle;
private String mDescription;
public ForumPost(User author, String title, String description) {
}
public String getDescription() {
return(mDescription);
}
public User getAuthor() {
return mAuthor;
}
public String getTitle() {
return mTitle;
}
// TODO: We need to expose the description
}
User.java
public class User {
private String mFirstName;
private String mLastName;
public User(String firstName, String lastName) {
// TODO: Set the private fields here
mFirstName = firstName;
mLastName = lastName;
}
public String getFirstName() {
return(mFirstName);
}
public String getLastName() {
return(mLastName);
}
}
Forum.java
public class Forum {
private String mTopic;
public Forum(String topic) {
mTopic = topic;
}
public String getTopic() {
return mTopic;
}
public void addPost(ForumPost post) {
/* When all is ready uncomment this... */
System.out.printf("New post from %s %s about %s.\n",
post.getAuthor().getFirstName(),
post.getAuthor().getLastName(),
post.getTitle());
}
}
Example.java
public class Example {
public static void main(String[] args) {
System.out.println("Starting forum example...");
if (args.length < 2) {
System.out.println("first and last name are required. eg: java Example Craig Dennis");
}
Forum forum = new Forum("Java");
// Take the first two elements passed args
User author = new User(args[0],args[1]);
// Add the author, title and description
ForumPost post = new ForumPost(author,"Bla","Bla");
forum.addPost(post);
}
}
2 Answers
Mario Blokland
19,750 PointsHi Adam,
you forgot something in the constructor of ForumPost.java. After you fixed that you should be good to go ;)
Noah Schill
10,020 PointsI'm sorry I must be missing something, what is missing? I tried putting:
author = getAuthor();
title = getTitle();
description = getDescription();
in the constructor., but I still get the error. :(
Mario Blokland
19,750 PointsNoah, you should use the arguments of the constructor as the values for the variables instead of the getter methods. Do you see it?
Noah Schill
10,020 PointsThank you!!!
Mario Blokland
19,750 PointsNo problem!
Adam Łakomy
10,718 PointsAdam Łakomy
10,718 PointsYeah, that help me figure out what I forget :) THanks
Mario Blokland
19,750 PointsMario Blokland
19,750 Pointsyou are welcome.