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Eshaa Dhall
Full Stack JavaScript Techdegree Student 13,122 PointsNeed help with the ToDo 2nd for the Task 1 of Changing courses.
How add the new video created to the course as a second video?
package com.example.model;
import java.util.List;
public class Course {
private String mName;
private List<Video> mVideos;
public Course(String name, List<Video> videos) {
mName = name;
mVideos = videos;
}
public String getName() {
return mName;
}
public List<Video> getVideos() {
return mVideos;
}
}
package com.example.model;
public class Video {
private String mTitle;
public Video(String title) {
mTitle = title;
}
public String getTitle() {
return mTitle;
}
public void setTitle(String title) {
mTitle = title;
}
}
import com.example.model.Course;
import com.example.model.Video;
import java.util.Map;
public class QuickFix {
public void addForgottenVideo(Course course) {
// TODO(1): Create a new video called "The Beginning Bits"
// TODO(2): Add the newly created video to the course videos as the second video.
}
public void fixVideoTitle(Course course, String oldTitle, String newTitle) {
}
public Map<String, Video> videosByTitle(Course course) {
return null;
}
}
3 Answers
calp
10,317 PointsThe first thing you should do is import the List from java.util. Then you'll want to create a new Video object under the first TODO comment. After that you will need to create a list by getting it from the Course object that is passed in and then add to it. This works because when the Course object returns the List it is returning the reference to the variable. Here's my code for you to take a look at,
import com.example.model.Course;
import com.example.model.Video;
import java.util.Map;
import java.util.List;
public class QuickFix {
public void addForgottenVideo(Course course) {
// TODO(1): Create a new video called "The Beginning Bits"
Video v = new Video("The Beginning Bits");
// TODO(2): Add the newly created video to the course videos as the second video.
List<Video> vids = course.getVideos();
vids.add(1, v);
}
public void fixVideoTitle(Course course, String oldTitle, String newTitle) {
}
public Map<String, Video> videosByTitle(Course course) {
return null;
}
}
Eshaa Dhall
Full Stack JavaScript Techdegree Student 13,122 PointsThank You Cal! I appreciate your help! :)
Grant Murphy
10,072 PointsI was misreading the second instructions as invoke a instance of course called videos and add the newly created video to that existing instance. Not simply add the new video to just the existing list.