Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trialJohn Miller
4,007 PointsHow do I emulate passing argument through main in the treehouse tool used for code
https://teamtreehouse.com/library/java-objects/delivering-the-mvp/wrapping-up-2
How do I emulate passing arguments through main in the treehouse code emulator?
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");
}
public class ForumPost {
private User mAuthor;
private String mTitle;
private String mDescription;
public ForumPost(User author, String title, String description) {
mAuthor = author;
mTitle = title;
mDescription = description;
}
public User getAuthor() {
return mAuthor;
}
public String getTitle() {
return mTitle;
}
// TODO: We need to expose the description
public String getDescription() {
return mDescription;
}
}
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;
}
}
public class Forum {
private String mTopic;
public Forum(String topic) {
mTopic = topic;
}
public String getTopic() {
return mTopic;
}
public void addPost(ForumPost post) {
System.out.printf("New post from %s %s about %s.\n",
post.getAuthor().getFirstName(),
post.getAuthor().getLastName(),
post.getTitle());
}
}
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 " + fName + " " + lName);
}
Forum forum = new Forum("Java");
// Take the first two elements passed args
User author = new User(fName, lName);
// Add the author, title and description
ForumPost post = new ForumPost(author, "Luftwasa", "German Aces");
forum.addPost(post);
}
}
2 Answers
Steve Hunter
57,712 PointsHi John,
I think the args
are passed in for the User
object called author
, right? That could look like:
User author = new User(args[0], args[1]);
Let me know if that works for you.
Steve.
John Miller
4,007 PointsThanks Steve, I figured it out. The problem wasn't difficult, understanding what the instructor wanted is what got me stuck.
Thanks!